Low-pressure-plasma-treated NiMoO4/Carbon paper for enhanced hydrogen evolution reaction in alkaline water electrolysis
Journal
Ceramics International
ISSN
0272-8842
Date Issued
2024-12
Author(s)
DOI
10.1016/j.ceramint.2024.12.341
Abstract
NiMoO4 synthesized by a hydrothermal method on carbon paper (CP) is used as a catalyst for the hydrogen evolution reaction (HER). Low-pressure plasma treatment is employed to bombard the material surface with reactive ions to create active sites, thereby enhancing the catalytic effect and increasing the electrochemical active surface area. The NiMoO4/CP treated with low-pressure plasma shows increased Ni2+ and Mo4+ ions and oxygen vacancies on its surface under X-ray photoelectron spectroscopy analysis, a lower overpotential (289.3 mV at 10 mA/cm2), and a lower charge transfer resistance (3.54 Ω). This NiMoO4/CP can potentially be used as a transition metal oxide HER catalyst material to replace noble metals to achieve environmental friendliness and cost reduction.
Subjects
Hydrogen evolution reaction
Low-pressure plasma
NiMoO4
SDGs
Publisher
Elsevier BV
Type
journal article