Co / CoS2 / surface porous Si composite photoelectric catalytic material as well as preparation method and application thereof

By forming a porous structure on the surface of single crystal Si material and modifying Co/CoS2 composite powder, the problems of high reflectivity, poor stability and low hydrogen evolution reaction rate in photoelectrometalysis are solved, and more efficient photoelectrochemical decomposition is achieved Water effect.

CN119121307AActive Publication Date: 2024-12-13HUNAN PETROCHEMICAL VOCATIONAL TECH COLLEGE +2
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Patent Information

Application Number
CN202411280528.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-13
Publication Date
2024-12-13
Estimated Expiration
2044-09-13

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Abstract

The invention discloses a Co / CoS2 / surface porous Si composite photoelectric catalytic material as well as a preparation method and application thereof, and belongs to the field of photoelectric catalytic materials. The preparation method provided by the invention comprises the following steps: preparing a surface porous Si base material; uniformly depositing a layer of metal Co on the surface of the surface porous Si base material to form a Co-Si composite material; and adding the Co-Si composite material into a sulfur source solution, and controlling the content of sulfur in the sulfur source solution, so that a small amount of Co in the Co-Si composite material is not vulcanized, thereby obtaining the Co / CoS2 / surface porous Si composite photoelectric catalytic material. The surface porous Si substrate is modified through the Co / CoS2 composite powder, so that the reflectivity of the material is reduced, and the stability and the hydrogen evolution reaction rate are improved.
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