Flower-like CoP coated NiMoO4 nanorods as self- supported core-shell heterojunction electrode can facilitate oxygen evolution reaction at a low overpotential
发布时间：2023-10-19点击次数：
- 关键字：DOUBLE HYDROXIDE NANOSHEETS; HIGHLY EFFICIENT; HIGH-PERFORMANCE; NICKEL FOAM; ELECTROCATALYST; CATALYST; HETEROSTRUCTURES; OXIDE
- 摘要：Transition metal phosphates, as the most promising catalyst for oxygen evolution reac-tion (OER), have attracted much attention in recent years. In this work, CoP nanosheets are elec-trodeposited on NiMoO4 nanorods to form a self-supported core-shell structure electrode with CoP-NiMoO4 heterojunctions. Density functional theory (DFT) calculations demonstrate CoP-12@NiMoO4/NF electrode can reduce reaction energy barrier of rate-determining step (RDS) from 8.743 eV to 2.519 eV. In 1 M KOH, the electrode shows a low overpotential of 165 mV (10 mA cm -2), a low Tafel slope of 45 mV dec �1 and the significant stability. Compared with other non-noble metal OER electrocatalysts, the prepared CoP-12@NiMoO4/NF electrode exhibits bet-ter electrocatalytic activity, which can provide a new choice of electrocatalysts for future practical applications.& COPY; 2023 The Author(s). Published by Elsevier B.V. on behalf of King Saud University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
- 卷号：16
- 期号：10
- 是否译文：否
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- 职称：教授
- 学历：博士研究生
- 学位：博士
- 职务：科技处副处长
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