Strontium-doped precious metal oxide oxygen evolution electrocatalyst and preparation method thereof

A precious metal oxide, electrocatalyst technology, applied in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., to improve catalyst performance, reduce precious metal loading, equipment less demanding effects
CN109569593AActive Publication Date: 2019-04-05GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
Publication Date
2019-04-05

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Abstract

The invention belongs to the field of electrocatalysts, and particularly relates to a strontium-doped precious metal oxide oxygen evolution electrocatalyst and a preparation method thereof. Accordingto the changing condition of solubility of strontium hydroxide along with temperature, high-temperature strontium hydroxide solution reacts with metal chloric acid, an outer layer of precious metal hydroxide separates out strontium hydroxide precipitates by cooling, and the precipitates are calcined at high temperature to obtain the strontium-doped precious metal oxide oxygen evolution electrocatalyst. The method is simple and low in equipment requirement, and the prepared oxygen evolution electrocatalyst is good in stability and high in catalytic activity, and has more reactive sites.
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Description

technical field

[0001] The invention belongs to the field of electrocatalysts, in particular to a strontium-doped noble metal oxide oxygen evolution electrocatalyst and a preparation method thereof. Background technique

[0002] Energy conversion technology plays an important role in the consumption and storage of renewable energy. Among them, Solid polymer water electrolysis (SPE) technology has many advantages such as high efficiency, small size, fast start and stop, and long life. Accepted and initially commercialized at home and abroad.

[0003] However, because the solid polymer water electrolysis technology needs to use noble metals as its catalyst, the cost of the stack is higher than that of the currently popular lye electrolysis, which limits its application scale. On the side of hydrogen evolution, carbon-supported platinum catalysts can be used at present to achieve relatively good performance at a lower loading of noble metals. The hydrogen evolution reaction a...

Claims

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