JP7470966B2 - Electrode holder and electrode reaction device - Google Patents

Description

The present invention relates to an electrode holder and an electrode reaction device using the same.

Electrode reactions are a general term for electrochemical reactions that occur at the interface between an electrode and an electrolyte solution, and are used in a wide range of applications, including decomposition reactions such as the electrolysis of water and deposition reactions such as metal plating. In particular, attempts have been made in recent years to manufacture fine particles using electrode reactions. Fine particles of metals, semiconductors, and compounds, particularly nano-sized particles, are materials that have been industrialized in various fields such as the environment, IT, printing, and medicine as catalysts, photocatalysts, magnetic materials, battery materials, photoelectric materials, and medical materials. Nanoparticles are superior in surface area, reactivity, catalytic properties, and magnetism compared to bulk and powder. In particular, fine particles of precious metals are rare and expensive, but are in particularly high demand in the fields of catalysts, electronic materials, and medical materials because they have properties that cannot be replaced by anything else. Therefore, if fine particles of precious metals can be manufactured efficiently, fine particles with higher added value can be provided at a lower cost. Patent Document 1 discloses a method for obtaining nanoparticles by performing pulse discharge between metal electrodes in a liquid.

In the method of Patent Document 1, a pair of metal electrodes are inserted diagonally into the liquid from outside the liquid, and are arranged so that the electrodes face each other while forming a V shape. In Patent Document 1, a pulse discharge is performed using these metal electrodes, and when electricity is applied, the metal that constitutes the electrodes is instantaneously turned into plasma, and when a power outage occurs, the plasma is instantaneously cooled, thereby producing nanoparticles.

JP 2016-204746 A

In the method of Patent Document 1, as nanoparticles are generated, the metal electrodes evaporate on the opposing surfaces (the tips of the V), which increases the distance between the electrodes. If the electrodes are separated by more than a certain distance, discharge is no longer possible, so as the electrodes evaporate, the electrodes must be moved axially toward the tips of the V to adjust the distance between the electrodes while continuing the pulse discharge. However, it is difficult to accurately face these metal electrodes while maintaining a constant distance between the electrodes and the area of each opposing electrode.

For example, if the axial shape of the opposing electrodes is distorted, or if the opposing surfaces of the electrodes are misaligned due to slight vibrations, the entire opposing surfaces of the metal electrodes may not discharge uniformly, and some of the electrodes may remain without being evaporated by discharge. Figure 15 is a photograph of an electrode in which the evaporation of the metal electrode does not proceed uniformly and some of the electrodes remain unmelted as a result of the misalignment of the opposing surfaces of the electrodes when nanoparticles are produced by the method of Patent Document 1. If the metal electrode remains unmelted in this way, the electrode area cannot be kept constant, so the current density is not constant and stable plasma cannot be formed, making it difficult to obtain nanoparticles with a uniform particle size. To solve this problem, it is necessary to align the axes of the opposing electrodes to the micron level, but even if such alignment is possible at the laboratory level, it is not practical for industrial mass production. Therefore, a technology that can solve such problems has been desired.

As a result of intensive research, the inventors have found that the above problems can be solved by using an electrode holder having a specific structure and an electrode reaction device using the same, and have arrived at the present invention.
[1] A rod-shaped support,
an electrode holder including a main body provided on one end side of the support, and a clamping body for clamping an electrode between the main body and the electrode holder;
[2] The electrode holder according to [1], characterized in that a clamping portion which is a protrusion having one or more notches is provided on at least one of a surface of the main body facing the clamping body and a surface of the clamping body facing the main body.
[3] The electrode holder according to [2], characterized in that the shape of the notch is triangular.
[4] The clamping portion is provided on both the main body and the clamping body, and at least one of the clamping portions of the main body and the clamping portion of the clamping body is provided in a plurality of portions at regular intervals,
The electrode holder according to [2] or [3], characterized in that the clamping portion of the main body and the clamping portion of the clamping body are fitted together, and [5] at least two electrode holders according to any one of [1] to [4], which hold a pair of electrodes horizontally facing each other in the axial direction;
a drive unit that holds the holder and moves at least one of the electrode holders in an axial direction of the electrode held by the holder; and a power supply unit.
An electrode reaction device comprising:
Regarding.

By using the electrode holder of the present invention and the electrode reaction device using the same, a pair of electrodes can be more accurately opposed to each other, and the efficiency of the electrode reaction can be further improved. In another aspect of the present invention, multiple electrodes can be used at once to carry out the electrode reaction, and the electrode reaction can be carried out with even higher efficiency.

1A is a front view, FIG. 1B is a plan view, and FIG. 1C is a bottom view showing one embodiment of an electrode holder of the present invention. 2A is a front view, FIG. 2B is a plan view, and FIG. 2C is a bottom view showing a state in which the screw is removed from the electrode holder in FIG. 1 . 2A and 2B are a front view and a plan view showing one embodiment in which an electrode is held by the electrode holder shown in FIG. 1 . 1A is a front view, FIG. 1B is a side view, FIG. 1C is a plan view of a clamping body, and FIG. 1D is a bottom view of a main body, showing one embodiment of an electrode holder of the present invention having a clamping portion. 5A and 5B are a front view and a plan view showing one embodiment in which an electrode is held by the electrode holder shown in FIG. 4. 1A is a front view, FIG. 1B is a side view, FIG. 1C is a bottom view of the main body, and FIG. 1D is a plan view of the clamping body, showing another embodiment of the electrode holder of the present invention having a clamping portion. 7A and 7B are a front view and a plan view showing one embodiment in which an electrode is held by the electrode holder shown in FIG. 6. 13A is a front view, FIG. 13B is a side view, FIG. 13C is a bottom view of the main body, and FIG. 13D is a plan view of the clamping body, showing yet another embodiment of the electrode holder of the present invention having a clamping portion. 9A and 9B are a front view and a plan view showing one embodiment in which an electrode is held by the electrode holder shown in FIG. 8 . 1A is a front view, FIG. 1B is a side view, FIG. 1C is a bottom view of the main body, and FIG. 1D is a plan view of a clamping body, showing one embodiment of an electrode holder of the present invention having a clamping portion with a triangular cutout. 11 is a front view showing a state in which an electrode is held by the electrode holder of FIG. 10. FIG. FIG. 1A is a bottom view of a main body having a plurality of clamping portions, FIG. 1B is a plan view of a clamping body, and FIG. 1C is a front view of the main body and the clamping body. 13A and 13B are front views of the electrode holder of Figure 12 when the clamping portions of the main body and the clamping body are engaged, (c) is a drawing showing one embodiment in which one cylindrical rod-shaped electrode is clamped between the main body and the clamping body, and (d) is a drawing showing one embodiment in which three cylindrical rod-shaped electrodes are clamped between the main body and the clamping body. 1 is a diagram showing one embodiment of an electrode reaction apparatus equipped with an electrode holder of the present invention. 1 is a photograph showing an example of an electrode after carrying out the method of Patent Document 1.

The present invention will be described based on a specific embodiment with reference to the drawings. Note that the drawings and the following description are merely for explaining one embodiment of the present invention, and do not limit the scope of the present invention in any way. In the following, the terms "up and down," "left and right," and "front and back" refer to the directions shown in the corresponding drawings.

1. Electrode holder 1
A specific embodiment of the electrode holder 1 of the present invention is shown in FIG. 1. The electrode holder 1 of FIG. 1 comprises a rod-shaped support 11 and a It includes a body 12 and a clamp 13 for clamping an electrode between the body 12 and the clamp 13 .

The shape of the support 11 is not particularly limited as long as it can be fixed to the electrode reaction device and can be connected to the main body 12 described later at one end thereof. Examples of such shapes include polygonal prisms such as triangular prisms, quadrangular prisms, pentagonal prisms, and hexagonal prisms, and circular prisms including ellipses. In FIG. 1, the support 11 is represented as a cylindrical rod. There is no particular limit to the thickness of the support 11, and it can be appropriately changed based on the size of the electrode to be used, the conditions of the electrode reaction, and the like. For example, the thickness of the support 11 may be set so that the cross-sectional area is preferably 0.1 to 5.0 cm ² , more preferably 0.2 to 4.0 cm ² , and even more preferably 0.3 to 3.5 cm ² . There is also no particular limit to the length of the support 11, and it can be appropriately changed based on the conditions of the electrode reaction, and the like. For example, the length of the support 11 may be preferably 5.0 to 15.0 cm, more preferably 6.0 to 12.0 cm, and even more preferably 6.3 to 10.0 cm.

There are no particular limitations on the material of the support 11, and examples of such materials include metal materials such as stainless steel, aluminum, iron, and steel, and plastic materials such as acrylic, polyvinyl chloride, and polyester. In addition, by making the electrode holder 1 itself electrically conductive, it becomes possible to connect the power source to the electrode holder 1, eliminating the need to connect the electrode held by the holder to the power source. Therefore, it is more preferable to form the support 11 from a metal material having electrical conductivity, such as stainless steel.

The support 11 may be provided with a fixing part 111 for fixing the support 11 to the electrode reaction device, if necessary. In FIG. 1, the fixing part 111 is provided near the upper end of the support 11. The fixing part 111 in FIG. 1 is provided as a ring-shaped protrusion having a diameter larger than the diameter of the support 11. A screw hole 112 is drilled at one location of the fixing part 111, and the screw hole 112 is used when fixing the support 11 to the electrode reaction device, for example, a drive unit described later, by screwing.

The main body 12 is provided on one end side of the support 11. There is no particular limitation on the shape of the main body 12, and it is not particularly limited as long as it can hold the electrode together with the holding body 13 described later. The specific shape of the main body 12 may be, for example, a flat plate or block having a polygonal shape such as a triangle, a rectangle, a pentagon, or a hexagon in its planar direction, or a flat plate or block having a circular shape including an ellipse. In FIG. 1, the main body 12 is shown as a thick flat plate having a quadrangle in its planar direction. The size of the main body 12 is also not particularly limited, and can be appropriately changed based on the size of the electrode to be used, the conditions of the electrode reaction, and the like. For example, the area of the main body 12 when viewed from the planar direction may be preferably 2 to 30 cm ² , more preferably 4 to 28 cm ² , and even more preferably 6 to 26 cm ² . By setting the area as described above, not only one but multiple electrodes can be more easily held.

There are no particular limitations on the material of the main body 12, and examples of such materials include metal materials such as stainless steel, aluminum, iron, and steel, and plastic materials such as acrylic, polyvinyl chloride, and polyester. In addition, by making the electrode holder 1 itself electrically conductive, it becomes possible to connect the power source to the electrode holder 1, eliminating the need to connect the electrode held by the holder to the power source. Therefore, it is more preferable to form the main body 12 from a metal material having electrical conductivity, such as stainless steel.

The main body 12 is provided on one end side of the support 11. Here, "one end side" means not only one end of the support 11, but also an area near the end that does not interfere with the holding of the electrode by the main body 12 and the clamping body 13. In FIG. 1, the main body 12 is provided on the lower end of the support 11. There is no particular limit to the position where the support 11 and the main body 12 are connected. For example, in FIG. 1, the support 11 is connected to almost the center of the main body 12, but this position can be adjusted as necessary. Also, in FIG. 1, the support 11 and the main body 12 are connected so that the angle between the axial direction of the support 11 and the planar direction of the main body 12 is almost perpendicular. The angle can be freely adjusted on the condition that the support 11 can be fixed to the electrode reaction device, the electrode can be clamped between the main body 12 and the clamping body 13, and the electrode can be horizontally opposed by the two electrode holders 1 that make a pair.

The sandwiching body 13 is a member that sandwiches the electrode between itself and the main body 12. There is no particular limitation on the shape of the sandwiching body 13, and it is not particularly limited as long as it can hold the electrode together with the main body 12. The specific shape of the sandwiching body 13 may be, for example, a flat plate or block having a polygonal shape such as a triangle, a rectangle, a pentagon, or a hexagon in its planar direction, or a flat plate or block having a circular shape including an ellipse. In FIG. 1, the sandwiching body 13 is shown as a thick flat plate having a quadrangle in its planar direction. The size of the sandwiching body 13 is also not particularly limited, and can be appropriately changed based on the size of the electrode to be used, the conditions of the electrode reaction, and the like. For example, the area of the sandwiching body 13 when viewed from the planar direction may be preferably 2 to 30 cm ² , more preferably 4 to 28 cm ² , and even more preferably 6 to 26 cm ² . By setting the area as described above, not only one but multiple electrodes can be more easily held. In order to hold the electrodes more reliably, it is more preferable that the planar shape and area in the planar direction of the main body 12 and the planar shape and area in the planar direction of the clamping body 13 are the same.

There are no particular limitations on the material of the clamping body 13, and examples of such materials include metal materials such as stainless steel, aluminum, iron, and steel, and plastic materials such as acrylic, polyvinyl chloride, and polyester. In addition, by making the electrode holder 1 itself electrically conductive, it becomes unnecessary to connect the electrode held by the holder to the power supply by connecting the electrode holder 1 to the power supply. Therefore, it is more preferable to form the clamping body 13 from a metal material having electrical conductivity, such as stainless steel.

The clamping body 13 may be fixed to the main body 12, or may be fixed so as to be detachable from the main body 12. In the former case, for example, the main body 12 and the clamping body 13 may be connected by a hinge at one of the locations. In the latter case, for example, as shown in FIG. 2, a plurality of screw holes 121 are provided in the main body 12 and a plurality of screw holes 131 are provided in the clamping body 13, and when clamping an electrode, the main body 12 and the clamping body 13 may be screwed together using a screw 14 as shown in FIG. 1. In FIG. 1, the main body 12 and the clamping body 13, which have a rectangular shape in the planar direction, are fastened together by the screw 14 through four screw holes drilled at the four corners. When drilling screw holes, the positions of the screw holes are not particularly limited, provided that they do not excessively interfere with holding the electrodes. It is more preferable to make the clamping body 13 and the main body 12 detachable, since this makes it easy to accommodate a wide range of electrode shapes and sizes, and also makes cleaning easier after the electrode reaction.

The opposing surfaces of the main body 12 and the clamping body 13 may be flat. By making each surface flat in this way, one or more electrodes can be clamped and fixed more easily. Figure 3 shows an embodiment in which three rectangular columnar rod-shaped electrodes are clamped by an electrode holder 1 in which the opposing surfaces of the main body 12 and the clamping body 13 are flat.

However, when the opposing surfaces of the main body 12 and the clamping body 13 are flat, it may be necessary to adjust the position of the electrode. Therefore, at least one of the main body 12 and the clamping body 13 may be provided with a clamping portion 122 and/or a clamping portion 132 that is a protrusion having one or more notches. By providing such a clamping portion 122 and/or a clamping portion 132, it is possible to minimize the effort required for position adjustment when holding an electrode between the main body 12 and the clamping body 13. By changing the size, shape, number, etc. of the notches, it is also possible for one electrode holder 1 to hold two or more electrodes at once.

Figure 4 shows an electrode holder 1 having such a clamping portion 132. The electrode holder 1 in Figure 4 has the clamping portion 132 on the surface of the clamping body 13 facing the main body 12. The clamping portion 132 is provided in the center of the clamping body 13 in the form of a rectangular protrusion whose planar shape is smaller than that of the clamping body 13. Note that, although the clamping portion is provided only on the clamping body 13 in Figure 4, the clamping portion may be provided only on the main body 12 without being provided on the clamping body 13. The clamping portion 132 has a semicircular notch N in the center of the front direction that penetrates the protrusion in the front-rear direction. Note that the position, shape and depth of the notch can be appropriately changed depending on the shape and size of the electrode used and the type and conditions of the electrode reaction. On the other hand, no clamping body is provided on the surface of the main body 12 facing the clamping body 13, and it is flat.

Figure 5 shows one embodiment in which one cylindrical rod-shaped electrode is held using the electrode holder 1 shown in Figure 4. One end of the cylindrical rod-shaped electrode E is held by the notch N of the clamping portion 132, and the rod-shaped electrode E is held between the planar main body 12 and the clamping portion 132. The electrode E fixed at one end is fixed so that it protrudes from the main body 12 and the clamping body 13 in the front-rear direction. The cylindrical rod-shaped electrode E is held along the direction of the semicircular notch N, so the time required to align the rod-shaped electrode E can be minimized.

Figure 6 further shows the electrode holder 1 having the clamping parts 122 and 132. The electrode holder 1 in Figure 6 has the clamping part 122 on the surface of the main body 12 facing the clamping body 13, and the clamping part 132 on the surface of the clamping body 13 facing the main body 12. These clamping parts 122 and 132 are provided in the form of a rectangular protrusion whose planar shape is smaller than that of the main body 12 and the clamping body 13 at the center of the main body 12 and the clamping body 13. These clamping parts 122 and 132 each have a semicircular notch N in the center of the front direction that penetrates the protrusion in the front-rear direction. The position, shape and depth of the semicircular notch of the clamping part 122 and the position, shape and depth of the semicircular notch of the clamping part 132 are adjusted so that when the main body 12 and the clamping body 13 are combined, they form a circular through hole when viewed from the front direction. The position, shape, and depth of the notch can be changed as appropriate depending on the shape and size of the electrode used and the type and conditions of the electrode reaction. In addition, the position of the notch N of the clamping part 122 as viewed from the front side may be shifted from the position of the notch N of the clamping part 132 as viewed from the front side.

Figure 7 shows one embodiment in which one cylindrical rod-shaped electrode is held using the electrode holder 1 shown in Figure 6. A cylindrical rod-shaped electrode E having approximately the same shape and cross-sectional area as the through hole is clamped in the circular through hole formed by the combination of the notch N of the clamping portion 122 and the notch N of the clamping portion 132. The cylindrical rod-shaped electrode E is held along the direction of the circular through hole, so the time required to align the rod-shaped electrode E can be minimized.

Also, FIG. 8 shows an electrode holder 1 having multiple (three in FIG. 8) semicircular notches in the clamping portion 122 and the clamping portion 132. The electrode holder 1 in FIG. 8 has the clamping portion 122 on the surface of the main body 12 facing the clamping body 13, and the clamping portion 132 on the surface of the clamping body 13 facing the main body 12. These clamping portions 122 and 132 are provided in the form of a protrusion in the center of the main body 12 and the clamping body 13, the shape of which in the planar direction is a rectangle smaller than that of the main body 12 and the clamping body 13. These clamping portions 122 and 132 have three semicircular notches N that penetrate the protrusion in the front-rear direction. The position, shape, and depth of the semicircular notch of the clamping portion 122 and the position, shape, and depth of the semicircular notch of the clamping portion 132 are adjusted so that when the main body 12 and the clamping body 13 are joined together, they form a circular hole when viewed from the front. The position, shape, and depth of the notch can be changed as appropriate depending on the shape and size of the electrode used and the type and conditions of the electrode reaction. The number of notches can be increased or decreased as appropriate depending on the conditions of the electrode reaction and the number of electrodes used. Furthermore, the position of the notch N of the clamping portion 122 as viewed from the front direction may be shifted from the position of the notch N of the clamping portion 132 as viewed from the front direction.

Figure 9 shows one embodiment in which three cylindrical rod-shaped electrodes are held using the electrode holder 1 shown in Figure 8. Cylindrical rod-shaped electrodes E having approximately the same shape and cross-sectional area as the through-holes are clamped in the multiple circular through-holes formed by the combination of the notches N of the clamping portion 122 and the notches N of the clamping portion 132, the number of which corresponds to the number of through-holes. Since the cylindrical rod-shaped electrodes E are held along the direction of the circular through-holes, the time required for aligning the rod-shaped electrodes E can be minimized.

It is more preferable to make the notch shape triangular. By making the notch shape triangular, the shape, size and number of electrodes to be held can be made wider. FIG. 10 shows an electrode holder 1 having clamping parts 122 and 132 with such triangular notches. The electrode holder 1 in FIG. 10 has a clamping part 122 on the surface of the main body 12 facing the clamping body 13, and a clamping part 132 on the surface of the clamping body 13 facing the main body 12. These clamping parts 122 and 132 are provided in the form of a protrusion in the center of the main body 12 and the clamping body 13, the shape in the planar direction of which is a rectangle smaller than that of the main body 12 and the clamping body 13. The clamping part 122 has a triangular notch N in the center of the front direction that penetrates the protrusion in the front-rear direction. In addition, the clamping part 132 has a triangular (inverted triangle) notch N in the center of the front direction that penetrates the protrusion in the front-rear direction. The position, shape, and depth of the triangular notch in clamping section 122 are made to be approximately the same as the position, shape, and depth of the triangular (inverted triangle) notch in clamping section 132.

The depth and apex angle of the triangular notch in the clamping portion 122 in FIG. 10 are the same as the depth and apex angle of the triangular (inverted triangle) notch in the clamping portion 132. However, the depth and angle can be freely changed depending on the shape of the electrode to be used. Although one triangular notch is provided in each of the clamping portion 122 and the clamping portion 132 in FIG. 10, multiple triangular notches may be provided as described above. Also, as described above, the clamping portion 122 or 132 may be provided in only one of the main body 12 or the clamping body 13. Furthermore, the position of the notch N in the clamping portion 122 as viewed from the front direction may be shifted from the position of the notch N in the clamping portion 132 as viewed from the front direction.

Figure 11 shows one embodiment of a rod-shaped electrode held by the electrode holder 1 shown in Figure 10. As shown in Figure 11(a), it can hold one rod-shaped electrode having the same shape and cross-sectional area as the diamond-shaped space R formed by the joining of two triangular notches. Furthermore, it is possible to sandwich the rod-shaped electrode from above and below by the triangular notch N in the clamping part 122 and the triangular (inverted triangle) notch N in the clamping part 132. Therefore, it is also possible to hold an electrode having a shape different from the diamond shape (for example, a circular columnar shape) as shown in Figure 11(b), or a square columnar rod-shaped electrode having a cross-sectional area larger than the cross-sectional area of the space R as shown in Figure 11(c). It is also possible to hold multiple rod-shaped electrodes at once as shown in Figure 11(d).

When both the main body 12 and the clamping body 13 are provided with the clamping parts 122 and 132, it is more preferable that at least one of the clamping parts 122 and 132 of the main body 12 and the clamping body 13 is provided with a plurality of parts spaced apart at regular intervals, and that the clamping parts 122 of the main body 12 and the clamping parts 132 of the clamping body 13 are fitted together. This type of configuration will be described with reference to FIG. 12.

12(a) is a plan view of the main body 12 having four clamping parts 122 (clamping parts 122a, b, c, and d) which are protrusions having triangular notches, and FIG. 12(b) is a plan view of the clamping body 13 having three clamping parts 132 (clamping parts 132a, b, and c) which are protrusions having triangular notches. The clamping parts 122a, b, c, and d are rectangular protrusions when viewed from the plane direction, and are arranged in parallel with a certain interval. Similarly, the clamping parts 132a, b, and c are also rectangular protrusions when viewed from the plane direction, and are arranged in parallel with a certain interval. Each of the clamping parts 122a, b, c, and d and the clamping parts 132a, b, and c has a triangular notch in the center in the front direction. FIG. 12(c) is a front view of the electrode holder 1 having the main body 12 and the clamping body 13. The size of each clamping part (clamping parts 122a, b, c, and d) of the main body 12 and each clamping part (clamping parts 132a, b, and c) of the clamping body 13, as well as the shape, depth, and apex angle of the triangular notch, are approximately the same.

The width of each clamping portion 122 provided on the main body 12 is L1, and the width between each clamping portion 122 is L2. On the other hand, the width of each clamping portion 132 provided on the clamping body 13 is L3, and the width between the clamping portions 132 is L4. The main body 12 and the clamping body 13 are fastened by a screw 14 through the screw holes 121 and 131. The width L1 of the clamping portion 122 is slightly smaller than the width L4 between the clamping portions 132. Also, the width L3 of the clamping portion 132 is slightly smaller than the width L2 between the clamping portions 122. When the main body 12 and the clamping body 13 are arranged side by side as shown in Figures 12(a) and (b), the positions of the clamping portions 122 and the positions of the clamping portions 132 are staggered.

By screwing the main body 12 and the clamping body 13 together, the clamping parts 122b and c of the main body 12 fit into the gaps between the clamping parts 132a and 132b and between the clamping parts 132b and 132c of the clamping body 13. The clamping parts 132a, b, and c of the clamping body 13 fit into the gaps between the clamping parts 122a and 122b of the main body 12, the gap between the clamping parts 122b and 122c, and the gap between the clamping parts 122c and 122d. In this invention, "fitting" means fitting together things that have a certain shape. In addition, "matching shapes" not only includes cases where the shape of the clamping portion 122 (convex shape) and the shape between the multiple clamping portions 132 (concave shape) match, but also includes cases where the convex and concave shapes are different enough that when the main body 12 and the clamping body 13 are mated, the main body 12 does not move relative to the clamping body 13 to the extent that it becomes difficult to align the electrodes, specifically, when the width of the convex portion is slightly smaller than the width of the concave portion.

In this way, by interlocking the clamping portion 122 of the main body 12 and the clamping portion 132 of the clamping body 13 with each other and adjusting the distance d between the main body 12 and the clamping body 13 as shown in Figures 13(a) and (b) (d2 in Figure 13(b) is narrower than d1 in Figure 13(a)), the size of the diamond-shaped gap R formed by the clamping portions 122 and 132 can be adjusted. By configuring the clamping portions 122 and 132 as described above, not only can it accommodate various sizes and shapes of electrodes clamped between the main body 12 and the clamping body 13, but it also makes it easier to adjust the positions of opposing electrodes when multiple electrodes are clamped.

For example, FIG. 13(c) shows a state in which one cylindrical electrode E is fixed. By shortening the distance between the main body 12 and the clamping body 13, the outer diameter of the electrode E comes into contact with the triangular cutout surface and is firmly fixed. Furthermore, since the electrode E is always located at the center of the diamond-shaped gap R, the effort of position adjustment can be greatly reduced when the electrode E is held and opposed by the electrode holder 1. FIG. 13(d) shows a state in which three cylindrical electrodes E are fixed. Even when multiple electrodes E are held, the outer diameter of each electrode E comes into contact with the triangular cutout surface and is firmly fixed. Furthermore, as the cross-sectional area of the diamond-shaped gap R is narrowed, the positions of the three electrodes E are naturally adjusted to form a triangle. Therefore, even when multiple electrodes are used, the effort of position adjustment can be greatly reduced when the electrode E is held and opposed by the electrode holder 1, and the efficiency of the electrode reaction can be easily improved by using multiple electrodes.

It is sufficient that there are multiple clamping parts 122 and multiple clamping parts 132. Therefore, for example, one clamping part 122 and two clamping parts 132 may be provided, and the clamping part 122 may be fitted between the two clamping parts 132.

The electrode holder 1 of the present invention makes it possible to hold not just one electrode, but multiple rod-shaped or plate-shaped electrodes, in a horizontal direction. By using two electrode holders 1 of the present invention, a pair of electrodes can be easily arranged to face each other horizontally in the axial direction. Therefore, even if the electrodes are subjected to vibration or have slight distortion in their longitudinal shape, the opposing surfaces of the electrodes are less likely to shift, and discharge between the electrodes can be more uniform.

2. Electrode reaction device The electrode reaction device X of the present invention comprises at least two of the electrode holders 1, each of which holds a pair of electrodes horizontally facing each other in the axial direction;
a drive unit 2 that holds the holder 1 and moves at least one of the holders 1 in an axial direction of the electrode held by the holder 1; and a power supply unit 3.
Each element will be described below with reference to the drawings.

Figure 14 shows an outline of the electrode reaction device X of the present invention. The electrode reaction device X in Figure 14 has a housing 4. The housing 4 has two legs 42, 42 and a beam 41 that is hung across the upper ends of the legs 42, 42. The legs 42, 42 have their lower ends fixed to a flat surface, such as the surface of a desk, using bolts or the like (not shown). Rails 43, 43 are provided in the vertical direction on the surfaces of the legs 42, 42. A cross member 44 is provided so that it can move up and down along the direction of the rails 43, 43. A belt (not shown) connected to the power of a motor or the like is connected to the left and right ends of the cross member 44, and the cross member 44 can be moved up and down by starting the motor or the like to drive the belt, and the cross member 44 can be fixed at any position by stopping the motor or the like.

Two drive units 2 are provided on the outside of the cross member 44. The drive unit 2 has a mechanism that can hold the electrode holder 1 of the present invention. For example, the drive unit 2 has a hole on the underside, into which the end of the electrode holder 1 that is not provided with the main body 12 can be inserted and the fixed part 111 and the drive unit 2 can be screwed together. In addition, a belt 21 for moving the drive unit 2 horizontally is connected to the left drive unit 2. The belt 21 can be driven by the power of a motor or the like (not shown) to move the drive unit 2 horizontally to the left and right. In FIG. 14, the belt 21 is connected only to the left drive unit 2, but when there are multiple drive units 2, for example, when there are two drive units on the left and right as shown in FIG. 14, the belt 21 can be connected to both drive units 2 so that both the left and right drive units 2 can move.

Each driving unit 2 fixes an electrode holder 1 holding an electrode E on its underside. The electrode holder 1 is fixed so that a pair of electrodes held by each electrode holder 1 face each other horizontally in the axial direction.

The electrode E held by the electrode holder 1 is connected to the power supply unit 3 using a lead wire 31. The current flowing from the power supply unit 3 is supplied to the electrode E through the lead wire 31, and the electrode reaction proceeds. If the electrode E decomposes or evaporates as the electrode reaction proceeds and the distance between the electrodes E increases, the belt 21 of the drive unit 2 is operated to move the electrode E horizontally to adjust the distance between the electrodes E. With this configuration of the present invention, the electrodes face each other at a more accurate position, and even in an electrode reaction involving electrode decomposition, a current can be uniformly passed, and uneven decomposition or evaporation of the electrodes can be avoided. In addition, since multiple electrodes can be fixed by the electrode holder of the present invention, the electrode reaction can be performed with high efficiency, and for example, a large amount of fine particles can be produced at one time when creating fine particles.

Depending on the type and purpose of the electrode reaction, an inverter for pulse discharge, a resistor for preventing over-discharge if the electrodes accidentally come into contact with each other, a water tank for carrying out the electrode reaction in a liquid such as water, and a liquid stirring means such as a magnetic stirrer or bubbler may be provided.

The electrode reaction device of the present invention makes it possible to hold not only one but multiple electrodes, such as rod-shaped or plate-shaped electrodes, in a horizontal direction. By using two electrode holders 1 of the present invention, a pair of electrodes can be easily arranged to face each other horizontally in the axial direction. Therefore, even if the electrodes are subjected to vibration or have slight distortion in their longitudinal shape, the opposing surfaces of the electrodes are less likely to shift, and discharge between the electrodes can be more uniform. The electrode reaction device of the present invention can be used in various electrode reactions, including the production of fine particles.

The electrode holder of the present invention can greatly reduce the effort required to align the opposing surfaces of electrodes when performing an electrode reaction, and can dramatically improve the efficiency of the electrode reaction. In addition, the electrode holder of the present invention can hold two or more electrodes at once, providing an electrode reaction with even greater efficiency.

1: electrode holder, 11: support, 111: fixing part, 112: screw hole, 12: main body, 121: screw hole, 122: clamping part, 13: clamp, 131: screw hole, 132: clamping part, 14: screw, 2: driving part, 3: power supply part, 4: housing, 41: beam, 42: leg, 43: rail, 44: cross member

Claims (3)

A rod-shaped support,
A main body provided on one end side of the support, and
Including a clamping body for clamping the electrode between the main body and thefruit,
The clamping portion is a protrusion having one or more notches on both a surface of the main body facing the clamping body and a surface of the clamping body facing the main body,
At least one of the clamping portion of the main body and the clamping portion of the clamping body is provided at a certain interval,
The electrode holder in which the clamping portion of the main body and the clamping portion of the clamping body are fitted together. The electrode holder according to claim 1 , wherein the shape of the notch is triangular. At least two electrode holders according to claim 1 or 2 , which hold a pair of electrodes horizontally facing each other in an axial direction;
a drive unit that holds the holder and moves at least one of the holders in an axial direction of the electrode held by the electrode holder; and a power supply unit.
An electrode reaction device comprising:

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