Preparation method and application of hydrogen evolution catalytic material Pt-CoP

A pt-cop, sodium borohydride technology, applied in chemical instruments and methods, inorganic chemistry, cobalt compounds, etc., can solve problems such as poor catalytic performance, increase electrochemical active surface area, facilitate contact, excellent hydrogen Effects of precipitation performance and stability
CN112779560AActive Publication Date: 2021-05-11INT ACAD OF OPTOELECTRONICS AT ZHAOQING SOUTH CHINA NORMAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INT ACAD OF OPTOELECTRONICS AT ZHAOQING SOUTH CHINA NORMAL UNIV
Publication Date
2021-05-11

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Abstract

The invention belongs to the technical field of water electrolysis hydrogen production, and discloses a preparation method and application of a hydrogen evolution material Pt-CoP, MoF is used as a frame, and a dice-shaped hollow structure is finally obtained by adopting a self-template method, P treatment, high-temperature calcination in argon and reduction. According to the structure, the electrochemical active surface area is effectively increased, contact between the material and electrolyte is facilitated, the mass transfer rate is accelerated, and the catalytic performance is effectively improved. The dice-shaped hollow CoP carrier is prepared, the contact area of an electrolyte and active sites is greatly increased, and the mass transfer rate is increased. Due to introduction of Pt, the content of precious metal is reduced, an electronic structure is modified, and electrons are transferred from Pt to a CoP carrier. The synergistic effect between Pt and CoP improves the catalytic performance of the material. In an acidic solution, Pt-CoP shows excellent hydrogen evolution performance and stability, and is suitable for producing hydrogen by electrolyzing water.
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Description

technical field

[0001] The invention belongs to the technical field of hydrogen production by electrolysis of water, and more specifically relates to a preparation method and application of a hydrogen evolution material Pt-CoP. Background technique

[0002] With the increasingly serious energy and environmental problems, it is imminent to develop and explore green and clean new energy sources. Since hydrogen energy has many advantages, such as abundant resources, high calorific value, and no pollution, it is regarded as the most ideal and most alternative new energy source. At present, hydrogen production by electrolysis of water has attracted widespread attention due to its low cost and environmental friendliness. As a half-reaction for water electrolysis, the hydrogen evolution reaction requires an electrocatalyst with fast kinetics and low potential. Commercial Pt is the most efficient catalyst for hydrogen production in water electrolysis, but its high price and resour...

Claims

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