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A kind of preparation method of electrocatalytic oxygen generation film electrode material and its product and application

A thin-film electrode and electrocatalysis technology, which is applied in the direction of electrodes, electrolytic components, and electrolytic processes, can solve the problems of high price and limited practical application of reserves, and achieve the effects of low cost, convenient electron diffusion and transmission, and fast synthesis speed

Active Publication Date: 2021-06-18
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Studies have shown that noble metal oxides, such as ruthenium dioxide and iridium dioxide, are efficient OER catalysts, but their practical application is limited due to their high price and limited reserves.
At present, some powder transition metal oxides, sulfides, and phosphides have been widely studied, but most of the research is based on loading on glassy carbon electrodes, which cannot meet the requirements of practical applications.

Method used

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  • A kind of preparation method of electrocatalytic oxygen generation film electrode material and its product and application
  • A kind of preparation method of electrocatalytic oxygen generation film electrode material and its product and application
  • A kind of preparation method of electrocatalytic oxygen generation film electrode material and its product and application

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Embodiment 1

[0077] 1) Preparation of PBA(Co-Fe) / NF Prussian blue analog film

[0078] Weigh cobalt acetate and potassium ferricyanide, dissolve them in distilled water, and prepare 500ml of solutions with concentrations of 3mmol / L and 2mmol / L respectively.

[0079] Take the prepared 3mmol / L cobalt acetate aqueous solution, pour it into a small brown bottle, put the cleaned nickel foam into it, put the small bottle in a 50°C water bath and let it stand for a while, then take out the nickel foam and moisten it with distilled water. Wash, then take the prepared 2mmol / L potassium ferricyanide aqueous solution, pour it into a small brown bottle, put the nickel foam into it, put the small bottle in a 50°C water bath and let it stand for a while, then take out the nickel foam and use distilled water Rinse to complete a full manual soak cycle.

[0080] Wherein, the immersion amount of the cobalt acetate solution is advisable to cover the nickel foam, the immersion time is 20 minutes, the standin...

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Abstract

The invention belongs to the technical field of electrode material preparation, and in particular relates to a method for preparing an electrocatalytic oxygen-generating thin film electrode material and its product and application. The invention adopts the liquid phase epitaxial growth method to grow the Prussian blue analog film on the nickel foam, and then calcines in the air for oxidation treatment to obtain the oxide film. The method has the advantages of fast synthesis speed, high preparation efficiency, controllable film area, controllable film thickness, environmental protection, low cost, and simple operation, and provides a convenient method for its large-scale preparation. The electrocatalytic oxygen generation thin film electrode material prepared by the present invention can be directly used as a working electrode for electrocatalytic oxygen generation, and has good conductivity. In addition, it improves the field of electrocatalytic oxygen generation in the prior art, and the glassy carbon electrode is used as a current collector. Poor performance, poor adhesion and easy falling off of the surface active substances of electrode materials make it have a good application prospect in the field of electrocatalytic oxygen evolution (OER).

Description

technical field [0001] The invention belongs to the technical field of electrode material preparation, and in particular relates to a method for preparing an electrocatalytic oxygen-generating thin film electrode material and its product and application. Background technique [0002] The rapid development of the economy requires more and more energy, the reserves of traditional fossil fuels are limited, and the environmental problems caused by the massive consumption of fossil fuels are becoming more and more serious. Therefore, it is particularly important to develop clean and efficient energy materials. Hydrogen is an energy material with abundant reserves, clean and efficient, and sustainable use. The electrolysis of water to produce hydrogen is an important source of hydrogen, and the anodic half-reaction of electrolysis of water, the oxygen evolution reaction (OER), often needs to overcome a high overpotential , consumes high energy, so the development of efficient, che...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25B11/077C25B1/04C25B11/031
CPCC25B1/04C25B11/031C25B11/077Y02E60/36
Inventor 谷志刚雷松康遥张健
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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