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Tailoring antiperovskite carbide for electrocatalysis hydrogen evolution applications
Xiang Ao, Fucheng Wu, Lin Yu, Kai Zhao, Muhammad Humayun, Chundong Wang*
https://doi.org/10.1016/j.cjsc.2025.100851
ABSTRACT
The development of efficient and cost-effective electrocatalysts for water splitting is crucial for advancing sustainable energy technologies. Antiperovskite carbides, with their compositional tunability and low cost, have emerged as promising candidates. In this work, a series of Ni3-xCoxInC antiperovskite carbides were synthesized, among which the sample with the optimized Ni/Co ratio exhibited impressive electrocatalytic activity toward the hydrogen evolution reaction (HER). Specifically, the catalyst achieved a low overpotential of 140 mV at 10 mA cm-2, together with robust durability under prolonged operating conditions. The enhanced HER performance is attributed to the synergistic interaction between Ni and Co atoms, as well as the increased density of carbon defects introduced during synthesis, which together facilitate favourable adsorption and desorption of reaction intermediates. This study not only offers a new perspective for the development of water-splitting catalysts but also expands the application scope of polymetallic carbides and intermetallic compounds in electrochemical energy conversion.
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CN 35–1112/TQ, ISSN 0254–5861, Online ISSN: 2949-768X Copyright @ 2022 Chinese Journal of Structural Chemistry-www.Chinese Journal of Structural Chemistry.net. All Rights Reserved 閩ICP備2022002645號(hào)-1