KR20220005889A - Transition metal coated catalytic electrode for electrolysis and preparation method thereof - Google Patents

Abstract

The present invention relates to a method for manufacturing a catalyst electrode for electrolysis coated with a transition metal having high electrical conductivity and corrosion resistance, and a catalyst electrode for electrolysis manufactured by the method.

Description

Catalyst electrode for electrolysis comprising a transition metal coating layer and method for manufacturing the same

The present invention relates to a method for manufacturing a catalyst electrode for electrolysis coated with a transition metal having high electrical conductivity and corrosion resistance, and to a catalyst electrode for electrolysis prepared by the method.

DSA (Dimensionally stable anode) electrode refers to an insoluble electrode used for electroplating, chlorine generation, hydrogen generation, sewage sludge treatment, and metal recovery. Since the DSA electrode, that is, the catalyst electrode, is manufactured using precious metals (Ruthenium, Palladium, Iridium, etc.) as a material, it is difficult to use in large quantities due to problems such as high price and scarcity.

In particular, in the case of the metal oxide catalyst electrode used in the conventional ballast water electrolysis tank, ruthenium oxide (RuO _x ) and palladium oxide (PdO _x ) are used as main catalysts, so a catalyst electrode with 100% noble metal content must be used continuously. In the electrolysis reaction, research on noble metal reduction catalysts is insufficient because it can stabilize the redox reaction between electrodes to increase efficiency and maintain a long operating life.

Ballast water refers to seawater or fresh water stored in a tank in a ship to balance the ship by lowering the center of gravity. Ballast water is filled in one port through ballasting work, transferred to another port, and discharged into the new port through deballasting work. In particular, the amount of seawater used as ballast water for international sailing ships moving around the world amounts to about 10 billion tons per year. .

Accordingly, there are movements to protect the marine environment. For example, the International Maritime Organization (IMO) made the Ballast Water Management Convention in 2004 to prevent disturbance of the marine ecosystem due to the discharge of ballast water, and Environmental regulations that mandate the installation of water treatment devices have been published.

In order to solve the above-mentioned ecological disturbance problem, ballast water must be treated to kill marine organisms. Examples of such ballast water treatment include ozone sterilization treatment, disinfection treatment using hydrogen peroxide, treatment using an electrolysis method, and the like.

Among them, the ozone sterilization method has a problem in operating for a long time because the sterilization efficiency is low in turbid water and the lifespan of the UV lamp required for ozone generation is short. Disinfection treatment using hydrogen peroxide has the advantage of strong sterilization and cheapness, but there is a possibility of residual hydrogen peroxide being discharged, which makes practical use difficult.

In particular, in the case of palladium (Pd), which is a catalyst of the catalytic electrode used in the above method, is one of the noble metals more expensive than gold (Au).

Therefore, in order to develop an electrolysis tank that is inexpensive and has a long life, it is required to develop a catalyst electrode in which palladium (Pd), an expensive catalyst material, is reduced.

As a prior document related to the catalytic electrode of an electrolysis tank, in Korean Patent Application Laid-Open No. 2004-0002809, a one-component or two-component complex or multi-component compound composed of an alkoxide such as Ti and Zr and a chloride such as Ru or Ir is diluted with alcohol After the hydrolysis reaction and polycondensation reaction, a coating solution is prepared, and a method of manufacturing an electrode for electrolysis pretreated with the coating solution is disclosed.

In addition, Korean Patent No. 10-0553364 discloses a metal mixed oxide electrode and a method for manufacturing the same, comprising: an electrode substrate; At least selected from an iridium (Ir) compound, a ruthenium (Ru) compound, a tin (Sn) compound, a manganese (Mn) compound, a titanium (Ti) compound, a molybdenum (Mo) compound, a tantalum (Ta) compound, and a zirconium (Zr) compound Disclosed is an electrode composed of a coating layer formed by applying and drying a coating solution in which one type is mixed with an organic solvent to the electrode substrate, performing a first heat treatment 4 to 15 times, and then performing a second heat treatment.

An object of the present invention is to reduce the content of expensive palladium by coating a transition metal having high electrical conductivity, corrosion resistance and high catalytic efficiency on a metal oxide catalyst layer, and to prepare a catalyst electrode for electrolysis coated with a transition metal that has secured electrolysis performance it is for

Another object of the present invention is to provide a method capable of reducing the content of palladium used in an existing commercial electrode by coating a transition metal on a metal oxide catalyst layer.

The above task, the steps of preparing one or more metal compound coating solution; forming a metal oxide catalyst layer by coating the metal compound coating solution on a titanium electrode and then performing heat treatment; and forming a transition metal coating layer by coating one or more transition metals on the metal oxide catalyst layer.

Preferably, the metal compound is ruthenium (Ru), palladium (Pd), titanium (Ti), tin (Sn), iridium (Ir), platinum (Pt), tantalum (Ta), antimony (Sb) and It may include one or more metals selected from the group consisting of manganese (Mn).

Also preferably, the transition metal is platinum (Pt), gold (Au), molybdenum (Mo), tantalum (Ta), ruthenium (Ru), palladium (Pd), zirconium (Zr), titanium (Ti) and It may be one or more metals selected from the group consisting of tungsten (W).

Also preferably, the step of forming the transition metal coating layer includes purging argon gas and evaporating the high-purity transition metal target using plasma at a temperature of 400° C. to 600° C. to deposit the transition metal on the surface of the metal oxide catalyst layer. may include

Also preferably, the catalyst electrode coating solution may be prepared by mixing at least one metal compound, a conductive agent, an organic solvent, and a binder solution.

Also preferably, the binder solution may be a salt selected from the group consisting of titanium salts such as titanium methoxide, titanium ethoxide, titanium propoxide and titanium butoxide.

Also preferably, the titanium electrode may be of a general plate material, a regular perforated network, a perforated perforated network, an expanded wire mesh type or a mesh type.

In addition, an object of the present invention is achieved by a catalyst electrode for electrolysis, which is manufactured by the above method and includes a titanium electrode, a metal oxide catalyst layer formed on the titanium electrode, and a transition metal coating layer formed on the metal oxide catalyst layer.

According to the method of the present invention, by coating a transition metal having high electrical conductivity and corrosion resistance on the metal oxide catalyst electrode, the stability of the catalyst electrode is increased, and the content of expensive palladium (Pd) is reduced while maintaining the electrolysis efficiency. It is expected to be an opportunity to solve the problem of price, which is a problem of insoluble electrodes for electrolysis by manufacturing, and to contribute to the catalytic electrode industry for electrolysis.

1 is a diagram illustrating a cross-section of a catalyst electrode manufactured by a method according to the present invention.
Figure 2 is a schematic diagram showing the reaction occurring at the cathode (Cathode) and the anode (Anode) during the seawater electrolysis operation of the present invention.
3 is an SEM image and elemental analysis data of the transition metal-coated catalyst electrode prepared in Example 1. FIG.
4 is an SEM image and elemental analysis data of the transition metal-coated catalyst electrode prepared in Example 2;
5 is an SEM image and elemental analysis data of the transition metal-coated catalyst electrode prepared in Example 3. FIG.
6 is an SEM image and elemental analysis data of the transition metal-coated catalyst electrode prepared in Example 4.
7 is an SEM image and elemental analysis data of the metal oxide catalyst electrode prepared in Comparative Example 1. Referring to FIG.
8 shows the voltage change in ^{a seawater electrolysis experiment (current density, 0.05A/cm 2} ) conducted for 10 hours by applying the catalyst electrode prepared in Examples 1 to 4 and Comparative Example 1 as the anode of the electrolysis tank. It is a graph.

All technical terms used in the present invention, unless otherwise defined, have the following definitions and have the meanings as commonly understood by one of ordinary skill in the art of the present invention. In addition, although preferred methods and samples are described herein, similar or equivalent ones are also included in the scope of the present invention.

The term "about" means 30, 25, 20, 15, 10, 9, 8, 7, 6, 5, means an amount, level, value, number, frequency, percentage, dimension, size, amount, weight or length varying by 4, 3, 2 or 1%.

Throughout this specification, unless the context requires otherwise, the terms "comprises" and "comprising" include, but are not limited to, a given step or element, or group of steps or elements, but any other step or element, or It is to be understood that a step or group of elements is not excluded.

The present invention relates to a method for preparing a catalyst electrode for electrolysis coated with a transition metal, and to a catalyst electrode prepared by the method.

According to an embodiment of the present invention, the catalyst electrode for electrolysis coated with a transition metal comprises the steps of preparing one or more metal compound coating solutions; and coating the metal compound coating solution on the titanium electrode and then heat-treating to form a metal oxide catalyst layer; and forming at least one transition metal coating layer on the metal oxide catalyst layer.

Since the transition metal coating layer according to the present invention is formed in an argon (Ar) gas atmosphere using a plasma method that can be deposited in a short time in a temperature range where the deformation of titanium is small, an oxide is not formed and pure transition metal is added to titanium It can be coated on the electrode surface.

Preferably, the transition metal coating layer is deposited on the surface of the metal oxide catalyst electrode by evaporating a transition metal target containing high purity platinum, molybdenum, tantalum or tungsten using plasma at a temperature of 400° C. to 600° C. in a vacuum chamber. can be formed. At this time, the vacuum chamber is preferably purged with high-purity argon (Ar, 99.99%) gas before creating a vacuum state.

The metal compound coating solution may be prepared by mixing at least one metal compound, an organic solvent, and a binder solution.

The metal compound is ruthenium (Ru), palladium (Pd), titanium (Ti), tin (Sn), iridium (Ir), platinum (Pt), tantalum (Ta), antimony (Sb) and manganese (Mn) It may include one or more metals selected from the group consisting of. Preferably, the metal compound having the highest specific gravity among the metal compounds may be _{RuCl 2 .}

The organic solvent may be selected from the group consisting of lower alcohols having 1 to 4 carbon atoms (eg, methanol, ethanol, propanol and butanol) and hydrochloric acid.

The binder solution may be selected from the group consisting of titanium salts such as titanium methoxide, titanium ethoxide, titanium propoxide and titanium butoxide.

The step of forming the metal compound catalyst layer includes applying the metal compound coating solution on the titanium substrate and then performing heat treatment.

According to an embodiment of the present invention, the step of forming the catalyst layer comprises the steps of applying the catalyst electrode coating solution on the surface of the titanium electrode and then heat-treating it at 450° C. to 550° C. (3 minutes to 5 minutes); and further sintering the electrode on which the catalyst layer is formed at 650° C. to 750° C. (2 hours).

1 is a cross-sectional view of a catalyst electrode coated with a transition metal on a metal oxide catalyst layer prepared by the method of the present invention.

Referring to FIG. 1 , a metal oxide layer (MO _x ) is formed on the surface of a titanium electrode (Ti), and a transition metal layer is formed thereon.

The method of the present invention forms a transition metal layer on the metal oxide catalyst layer, thereby reducing the content of palladium (Pd), an expensive noble metal, and preparing a metal oxide catalyst electrode stable for seawater electrolysis.

In the above, the titanium electrode may include a titanium metal or a titanium alloy having a purity of 100%. The titanium electrode may be of a general plate material, a regular perforated network, a perforated net, an expanded wire mesh type or a mesh type. In addition, the titanium electrode may be an electrode having a rough surface treated with sand blast or the like in order to increase the reaction area during the electrolysis reaction.

The ballast water used in the electrolysis experiment in the present invention may be seawater or fresh water as water stored inside to balance the ship, and more preferably seawater.

When the ballast water is seawater, the reaction that occurs during electrolysis of seawater can be explained by the following equation.

[Scheme 1]

Anode(+pole) :

2OH ^- → H ₂ O + 1/2O ₂ ↑ + 2e ^-

NaCl → Na ⁺ + Cl ^-

2Cl ^- → Cl ₂ ↑ + 2e ^- (main reaction)

Cl ₂ + H ₂ O → HClO (hypochlorous acid) + H ⁺ + Cl ^- (side reaction)

[Scheme 2]

Cathode (-pole):

2H ₂ O +2e ^- → H ₂ ↑ + 2OH ^- (main reaction)

Na ⁺ + OH ^- → NaOH (side reaction)

Mg ⁺² + Ca ⁺² + 4OH ^- → Mg(OH) ₂ + Ca(OH) ₂ (side reaction)

A schematic diagram related to the reaction is shown in FIG. 2, and as in Reaction Equation 1, if the catalyst layer is not densely formed due _{to the generation of Cl 2} gas and O _{2 gas generated in the anode reaction during seawater electrolysis, the catalyst layer} Cracks or fragments may occur. In addition, in order for the reaction to proceed well, the reduction in seawater electrolysis efficiency can be prevented when the conductivity of the catalyst to receive and reduce electrons must be high.

In the present invention, lack even have an electrical conductivity and a transition metal having a corrosion resistance by forming a metal oxide catalyst surface collector of preventing corrosion of the titanium metal to increase the metal oxide catalyst effective noble metal catalyst is palladium oxide (PdO _x) content of the catalyst It is possible to prevent a decrease in the efficiency of the electrolysis process by enhancing the efficiency.

When the catalyst electrode manufactured according to the method of the present invention is used in a ballast water electrolysis facility, the amount of expensive palladium is remarkably reduced, but the reduction of the reduction reaction efficiency for reducing _{Cl 2} or O _{2 is prevented, so that the ballast water} It can be used for a long time without reduction in energy efficiency and residual oxidizing agent (TRO) generation efficiency even in the continuous electrolysis reaction in or out.

Hereinafter, the present invention will be specifically described with reference to Examples. However, the following examples and accompanying drawings are only examples used to show the state after coating of the present invention, and the electrode coating range or use range of the present invention is not limited by the drawings.

Example 1 - Preparation of transition metal coated RuO ₂ catalyst electrode 1

_{First, 0.14 g of RuCl 2} was added to 3 mL of butanol to prepare solution 1, and 0.6 mL of titanium propoxide and 0.015 g of carbon were mixed with 3 mL of HCl and 5 mL of butanol to prepare solution 2. 3 mL of solution 1 prepared by the above method and 6.4 mL of solution 2 were mixed and bathed for 2 hours to prepare a metal compound coating solution.

The metallic compound coating solution was coated on a mesh-type titanium electrode using a gun spray at a rate of 1 mL/min, dried and then heat treated at 450° C. for 3 minutes. After this process was carried out 5 times, heat treatment was performed at 650° C. for 1 hour to prepare a metal oxide catalyst layer.

The titanium electrode with the metal oxide catalyst layer prepared by the above method was ^{placed in a vacuum chamber in which a high vacuum of about 1x10 -6} Torr was maintained, and a high-purity platinum (99.99%) target was prepared. After purging the vacuum chamber with high-purity argon (Ar, 99.99%) gas, a current of 15 mA was applied to the electrode for 5 minutes to evaporate the platinum target using plasma. At this time, the platinum evaporated due to the plasma used is in an ionized state, and platinum was deposited on the surface of the metal oxide catalyst layer to which a voltage was applied to prepare a catalyst electrode. The SEM image and EDS analysis data of the electrode having a platinum coating layer on the surface of the catalyst layer prepared above are shown in FIG. 3 , and it was confirmed that platinum element including metal oxide was analyzed in the prepared electrode.

In addition, the prepared catalyst electrode was used as an anode in the electrolysis tank and a titanium electrode, which is the same material, was applied to the cathode without pretreatment, followed by a continuous seawater electrolysis experiment (current density, 0.05A/cm) for 10 hours. ² ) was performed twice or more. The voltage change during seawater electrolysis was measured and shown in FIG. 8 .

Example 2 - Preparation of transition metal coated RuO ₂ catalyst electrode 2

_{First, 0.14 g of RuCl 2} was added to 3 mL of butanol to prepare solution 1, and 0.6 mL of titanium propoxide and 0.015 g of carbon were mixed with 3 mL of HCl and 5 mL of butanol to prepare solution 2. 3 mL of solution 1 prepared by the above method and 6.4 mL of solution 2 were mixed and bathed for 2 hours to prepare a metal compound coating solution.

The metallic compound coating solution was coated on a mesh-type titanium electrode using a gun spray at a rate of 1 mL/min, dried and then heat treated at 450° C. for 3 minutes. After this process was carried out 5 times, heat treatment was performed at 650° C. for 1 hour to prepare a metal oxide catalyst layer.

The titanium electrode with the metal oxide catalyst layer prepared by the above method was ^{placed in a vacuum chamber in which a high vacuum of about 1x10 -6} Torr was maintained, and a high-purity platinum (99.99%) target was prepared. After purging the vacuum chamber with high-purity argon (Ar, 99.99%) gas, a current of 15 mA was applied to the electrode for 10 minutes to evaporate the platinum target using plasma. At this time, the platinum evaporated due to the plasma used is in an ionized state, and platinum was deposited on the surface of the metal oxide catalyst layer to which a voltage was applied to prepare a catalyst electrode. The SEM image and EDS analysis data of the electrode having a platinum coating layer on the surface of the catalyst layer prepared above are shown in FIG. 4 , and it was confirmed that platinum element including metal oxide was analyzed in the prepared electrode.

In addition, the prepared catalyst electrode was used as an anode in the electrolysis tank and a titanium electrode, which is the same material, was applied to the cathode without pretreatment, followed by a continuous seawater electrolysis experiment (current density, 0.05A/cm) for 10 hours. ² ) was performed twice or more. The voltage change during seawater electrolysis was measured and shown in FIG. 8 .

Example 3 - Preparation of transition metal coated RuO ₂ catalyst electrode 3

_{First, 0.14 g of RuCl 2} was added to 3 mL of butanol to prepare solution 1, and 0.6 mL of titanium propoxide and 0.015 g of carbon were mixed with 3 mL of HCl and 5 mL of butanol to prepare solution 2. 3 mL of solution 1 prepared by the above method and 6.4 mL of solution 2 were mixed and bathed for 2 hours to prepare a metal compound coating solution.

The metal compound coating solution was coated on a mesh-type titanium electrode using a gun spray at a rate of 1 mL/min, dried and then heat-treated at 450° C. for 3 minutes. After this process was carried out 5 times, heat treatment was performed at 650° C. for 1 hour to prepare a metal oxide catalyst layer.

The titanium electrode with the metal oxide catalyst layer prepared by the above method was ^{placed in a vacuum chamber in which a high vacuum of about 1x10 -6} Torr was maintained, and a high-purity platinum (99.99%) target was prepared. After purging the vacuum chamber with high-purity argon (Ar, 99.99%) gas, a current of 15 mA was applied to the electrode for 15 minutes to evaporate the platinum target using plasma. At this time, the platinum evaporated due to the plasma used is in an ionized state, and platinum was deposited on the surface of the metal oxide catalyst electrode to which a voltage was applied to prepare a catalyst electrode. The SEM image and EDS analysis data of the electrode having a platinum coating layer on the surface of the catalyst layer prepared above are shown in FIG. 5 , and it was confirmed that platinum element including metal oxide was analyzed in the prepared electrode.

In addition, the prepared catalyst electrode was used as an anode in the electrolysis tank and a titanium electrode, which is the same material, was applied to the cathode without pretreatment, followed by a continuous seawater electrolysis experiment (current density, 0.05A/cm) for 10 hours. ² ) was performed twice or more. The voltage change during seawater electrolysis was measured and shown in FIG. 8 .

Example 4 - Preparation of transition metal coated RuO ₂ catalyst electrode 4

_{First, 0.14 g of RuCl 2} was added to 3 mL of butanol to prepare solution 1, and 0.6 mL of titanium propoxide and 0.015 g of carbon were mixed with 3 mL of HCl and 5 mL of butanol to prepare solution 2. 3 mL of solution 1 prepared by the above method and 6.4 mL of solution 2 were mixed and bathed for 2 hours to prepare a metal compound coating solution.

The metal compound coating solution was coated on a mesh-type titanium electrode using a gun spray at a rate of 1 mL/min, dried and then heat-treated at 450° C. for 3 minutes. After this process was performed 5 times, heat treatment was performed at 650° C. for 1 hour to prepare a metal oxide catalyst electrode.

The metal oxide catalyst electrode prepared by the above method was ^{placed in a vacuum chamber in which a high vacuum of about 1x10 -6} Torr was maintained, and a high-purity tantalum (99.99%) target was prepared. After purging the vacuum chamber with high-purity argon (Ar, 99.99%) gas, a voltage of 100 kV was applied for about 10 seconds to 1 minute to evaporate the tantalum target using plasma. At this time, the tantalum evaporated due to the plasma used was in an ionized state, and a catalyst electrode was manufactured by depositing tantalum on the surface of the metal oxide catalyst layer to which a voltage was applied. The SEM image and EDS analysis data of the electrode having a tantalum coating layer on the surface prepared above are shown in FIG. 6 , and it was confirmed that the tantalum element including metal oxide was analyzed in the prepared electrode.

In addition, the prepared catalyst electrode was used as an anode in the electrolysis tank and a titanium electrode, which is the same material, was applied to the cathode without pretreatment, followed by a continuous seawater electrolysis experiment (current density, 0.05A/cm) for 10 hours. ² ) was performed twice or more. The voltage change during seawater electrolysis was measured and shown in FIG. 8 .

Comparative Example 1 - RuO ₂ Catalyst electrode preparation

_{First, 0.14 g of RuCl 2} was added to 3 mL of butanol to prepare solution 1, and 0.6 mL of titanium propoxide and 0.015 g of carbon were mixed with 3 mL of HCl and 5 mL of butanol to prepare solution 2. 3 mL of solution 1 prepared by the above method and 6.4 mL of solution 2 were mixed and bathed for 2 hours to prepare a metal compound coating solution.

The metal compound coating solution was coated on a mesh-type titanium electrode using a gun spray at a rate of 1 mL/min, dried and then heat-treated at 450° C. for 3 minutes. After this process was performed 5 times, heat treatment was performed at 650° C. for 1 hour to prepare a catalyst electrode.

In addition, the surface of the prepared catalyst electrode is shown in FIG. 7 . In addition, the prepared catalyst electrode was used as an anode in the electrolysis tank and a titanium electrode, which is the same material, was applied to the cathode without pretreatment, followed by a continuous seawater electrolysis experiment (current density, 0.05A/cm) for 10 hours. ² ) was performed twice or more. The voltage change during seawater electrolysis is shown in FIG. 8 .

3 is an SEM photograph of the platinum-coated ruthenium oxide catalyst electrode prepared in Example 1, and the platinum element was found to be about 1 At% or less in the elemental analysis result by coating about 30 nm of platinum on the ruthenium oxide catalyst layer.

4 is a SEM photograph of the platinum-coated ruthenium oxide catalyst electrode prepared in Example 2, and the platinum element was found to be about 5 At% or less in the elemental analysis result by coating about 60 nm of platinum on the ruthenium oxide catalyst layer.

5 is a SEM photograph of the platinum-coated ruthenium oxide catalyst electrode prepared in Example 3, and the platinum element was found to be about 9 At% or less in the elemental analysis result by coating about 60 nm of platinum on the ruthenium oxide catalyst layer.

6 is an SEM photograph of the tantalum-coated ruthenium oxide catalyst electrode prepared in Example 4, and it was confirmed that about 1 μm of tantalum was coated on the ruthenium oxide catalyst layer, and the elemental tantalum was about 43 At% or less. .

7 is an SEM photograph of the ruthenium oxide catalyst electrode prepared in Comparative Example 1, in which only the elements of ruthenium oxide and titanium oxide were confirmed from the elemental analysis result.

8 is a voltage change in the case of ^{performing two or more consecutive seawater electrolysis experiments (current density, 0.05A/cm 2} ) for 10 hours using the catalyst electrode prepared in Examples 1 to 4 and Comparative Example 1 as an anode; is a graph showing The seawater electrolysis voltage of the catalyst electrode prepared in Example 1 was about 4V, which was similar to Comparative Example 1, but it was confirmed that the electrode prepared in Example 2 decreased the electrolysis voltage to about 3.25V. However, as the reaction proceeded for 10 hours, the overvoltage increased and the electrolysis voltage increased to about 3.4V. In the case of the catalyst electrode prepared in Example 3, the initial voltage was formed lower than in Example 2, and the seawater electrolysis graph was stable at about 3.25 V even after 10 hours of electrolysis. The catalyst electrode prepared in Example 4 took less overvoltage due to a low electrolysis voltage of 3V or less compared to the platinum-coated electrode, and showed a stable reaction in seawater electrolysis for 10 hours.

As described above in detail a specific part of the present invention, for those of ordinary skill in the art, this specific description is only a preferred embodiment, and it is clear that the scope of the present invention is not limited thereto. Accordingly, the substantial scope of the present invention will be defined by the appended claims and their equivalents.

Claims (8)

preparing at least one metal compound coating solution;
forming a metal oxide catalyst layer by coating the metal compound coating solution on a titanium electrode and then performing heat treatment; and
A method of manufacturing a catalyst electrode for electrolysis, comprising the step of forming a transition metal coating layer by coating one or more transition metals on the metal oxide catalyst layer. According to claim 1, wherein the metal compound is ruthenium (Ru), palladium (Pd), titanium (Ti), tin (Sn), iridium (Ir), platinum (Pt), tantalum (Ta), antimony (Sb) ) and manganese (Mn), characterized in that it comprises one or more metals selected from the group consisting of, the method for producing a catalyst electrode for electrolysis. According to claim 1, wherein the transition metal is platinum (Pt), gold (Au), molybdenum (Mo), tantalum (Ta), ruthenium (Ru), palladium (Pd), zirconium (Zr), titanium (Ti) and A method of manufacturing a catalyst electrode for electrolysis, characterized in that it is at least one metal selected from the group consisting of tungsten (W). The method of claim 1, wherein the metal compound coating solution is prepared by mixing at least one metal compound, an organic solvent, and a binder solution. The method of claim 4, wherein the binder solution is selected from the group consisting of titanium salts such as titanium methoxide, titanium ethoxide, titanium propoxide and titanium butoxide. The method of claim 1, wherein the step of forming the transition metal coating layer comprises: purging argon gas and evaporating a high-purity transition metal target using plasma at a temperature of 400°C to 600°C to deposit the transition metal on the surface of the metal oxide catalyst layer A method for producing a catalyst electrode for electrolysis, comprising a. According to claim 1, wherein the titanium electrode is a general plate material, a regular perforated network, a membrane perforated network, an expanded wire mesh type or a mesh type, the method of manufacturing a catalyst electrode for electrolysis. A catalyst electrode for electrolysis, manufactured by the method of any one of claims 1 to 7, and comprising a titanium electrode, a metal oxide catalyst layer formed on the titanium electrode, and a transition metal coating layer formed on the metal oxide catalyst layer.

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