A n,s co-doped graphene/molybdenum selenide/cofe-ldh airgel and its preparation

A graphene and co-doping technology, which is applied in the direction of graphene, binary selenium/tellurium compounds, cobalt compounds, etc., can solve the problems of low utilization efficiency, restrictions on widespread use, and scarce resources, and achieve low cost and batch production. The effect of small difference and safe operation
CN109778225BActive Publication Date: 2021-08-17SHANGHAI INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI INST OF TECH
Publication Date
2021-08-17

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Abstract

The invention provides a kind of N, S co-doped graphene / MoSe 2 The preparation method of / CoFe-LDH airgel is characterized in that, comprises the following steps: S1, prepare graphene oxide lamellar dispersion liquid, MoSe respectively 2 Nanosheet dispersion and layered CoFe-LDH nanosheet dispersion; S2, the graphene oxide sheet dispersion and MoSe 2 Mix the nanosheet dispersion, add reducing agent and crosslinking agent, mix evenly, and react to prepare N, S co-doped graphene / MoSe 2 Hydrogel, freeze-dried to obtain N,S co-doped graphene / MoSe 2 Airgel; S3, the N,S co-doped graphene / MoSe 2 Airgel soaked in layered CoFe‑LDH nanosheet dispersion for N,S co-doped graphene / MoSe 2 / CoFe‑LDH hydrogel, freeze-dried N, S co-doped graphene / MoSe 2 / CoFe‑LDH airgel. Ternary N, S co-doped graphene / MoSe prepared by the present invention 2 / CoFe‑LDH airgel has better hydrogen evolution and oxygen evolution performance under alkaline conditions.
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Description

technical field

[0001] The invention relates to an electrode hydrogen and oxygen evolution material, in particular to a N, S co-doped graphene / MoSe 2 / CoFe-LDH and its preparation method. Background technique

[0002] Energy and the environment are the material basis for the survival and development of human society, and their importance is self-evident. In recent years, with the rapid growth of the world's population and the accelerated consumption of energy, problems such as energy shortage and environmental pollution have become increasingly serious, posing a huge threat to human survival and health. In view of this, there is an imminent human demand for new, sustainable and clean energy. Electrocatalytic water splitting is one of the important ways to efficiently generate renewable clean energy, and its decomposition products are only O 2 and H 2 , zero pollution to the environment, and O 2 and H 2 It can also be used as a raw material for fuel cells, so water spli...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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