A kind of catalytic oxygen evolution electrode and its preparation method and application

A technology for oxygen evolution electrodes and catalysts, applied in electrodes, electrolysis components, electrolysis processes, etc., can solve the problems of high catalyst preparation costs, affecting catalytic activity, cumbersome preparation process, etc., and achieve the goal of not damaging the catalytic activity and improving compatibility Effect
CN108468066BActive Publication Date: 2019-07-16SOUTH CHINA UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Publication Date
2019-07-16

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Abstract

The invention belongs to the technical field of electrolysis water catalyzation, and discloses a catalytic oxygen evolution electrode and a preparation method and application thereof. The catalytic oxygen evolution electrode is prepared in a manner that the voltage equivalent to -0.8 V--0.4 V of the voltage of a saturated Ag / AgCl reference electrode is applied in an electrolyte and the constant-pressure treatment time ranges from 30 s to 1800 s. According to the method that the catalytic oxygen evolution electrode can be used for reducing electrolysis water energy consumption, the catalytic activity of a noble metal catalyst (RuO2, IrO2), a metal catalyst (Co3O4) and a double perovskite material PrBa0.5Sr0.5Co1.5Fe0.5O5+alpha nanowire is improved; the treatment method is simple and practicable, and in the electrode preparation process, the shape and size of the electrode can be controlled; and the oxygen evolution performance of the catalytic oxygen evolution electrode prepared by themethod under the voltage ranging from 1 V to 2 V (relative to a reversible hydrogen electrode) is greatly improved, and application prospects are good.
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Description

technical field

[0001] The invention belongs to the technical field of electrode preparation, and in particular relates to a catalytic oxygen precipitation electrode and its preparation method and application. Background technique

[0002] At present, in the selection of raw materials for new energy conversion equipment, hydrogen raw materials have great potential. Hydrogen energy equipment has high specific energy, good safety performance, and because there is no pollution in the energy conversion process, it has broad development prospects as a new energy conversion equipment. At present, the most ideal method for the production of hydrogen is electrolysis of water. With the advancement of technology and the continuous development of the market, it is increasingly important and urgent to improve the efficiency of electrolyzed water. Therefore, reducing the overpotential of the oxygen evolution electrode in electrolyzed water is the focus of current research. In addition ...

Claims

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