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Construction of Ni 2 P-MoC/Coal-Based Carbon Fiber Self-Supporting Catalysts for Enhanced Hydrogen Evolution.
- Source :
-
Molecules (Basel, Switzerland) [Molecules] 2023 Dec 24; Vol. 29 (1). Date of Electronic Publication: 2023 Dec 24. - Publication Year :
- 2023
-
Abstract
- Efficient and inexpensive electrocatalysts play an important role in the hydrogen evolution reaction (HER) of electrolytic water splitting. Herein, Ni <subscript>2</subscript> P-MoC/coal-based carbon fiber (Ni <subscript>2</subscript> P-MoC/C-CF) self-supporting catalysts were obtained by low-temperature phosphorization and high-temperature carbonization. The Mo source and oxidized coal were uniformly dispersed in the carbon support by electrospinning technology. A precursor of Ni was introduced by the impregnation method. The synergistic effect of MoC and Ni <subscript>2</subscript> P may reduce the strong hydrogen adsorption capacity of pure MoC and provide a fast hydrogen release process. In addition, the C-CFs prepared by electrospinning can not only prevent the agglomeration of MoC and Ni <subscript>2</subscript> P particles at a high temperature but also provide a self-supporting support for the catalyst. As a result, the catalytic performance of the HER was improved greatly, and a low overpotential of 112 mV at 10 mA cm <superscript>-2</superscript> was exhibited stably by the Ni <subscript>2</subscript> P-MoC/C-CFs. This work not only converts coal into coal-based carbon materials but also provides a feasible pathway for the rational design of large-scale molded hydrogen electrocatalysts.
Details
- Language :
- English
- ISSN :
- 1420-3049
- Volume :
- 29
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Molecules (Basel, Switzerland)
- Publication Type :
- Academic Journal
- Accession number :
- 38202699
- Full Text :
- https://doi.org/10.3390/molecules29010116