Electrospinning of carbon nanofiber Co / WS2 heterojunction fiber membrane catalysts, their preparation methods and applications

CN116497389BActive Publication Date: 2026-05-29QINGDAO UNIV
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Patent Information

Application Number
CN202310234311.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-03-13
Publication Date
2026-05-29
Estimated Expiration
2043-03-13

AI Technical Summary

Technical Problem

Existing water electrolysis catalysts suffer from insufficient catalytic activity and dependence on precious metals, making it difficult to achieve an efficient and inexpensive water electrolysis hydrogen production process.

Method used

Carbon nanofiber Co/WS2 heterojunction fiber membrane catalysts were constructed by combining electrospinning and magnetron sputtering. The electronic structure of the catalyst was adjusted by electron transfer at the Schottky heterojunction interface, thereby improving the catalytic activity.

Benefits of technology

A current density of 10 mA/cm² was obtained at 118 mV, demonstrating excellent performance in hydrogen evolution through water electrolysis, and providing a high-performance, low-cost electrocatalyst alternative to precious metals.

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Abstract

The present application relates to the technical field of electrolytic water catalyst, especially electrospinning construction carbon nanofiber Co / WS2 heterojunction fiber membrane catalyst and its preparation method and application, electrospinning construction carbon nanofiber Co / WS2 heterojunction fiber membrane catalyst, the fiber membrane prepared by electrospinning of the spinning precursor solution containing Co, and the WS2 layer sputtered on the fiber membrane by magnetron, and the Co / WS2 heterojunction fiber membrane is obtained after heat treatment, the electron transfer effect of the Schottky heterojunction interface is used, the electron is transferred from Co to WS2 layer, so that the electronic structure of the catalyst is adjusted, the electron is transferred from Co to WS2 by the electron transfer effect of the Schottky heterojunction interface, so that the electronic structure of the catalyst is adjusted, the intrinsic activity of the catalyst is improved, and excellent performance is obtained.
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