构建用于氧进化反应的高效 MoS2 基复合电催化剂†。

IF 4.4 3区化学 Q2 CHEMISTRY, PHYSICAL

Catalysis Science & Technology Pub Date : 2024-09-25 DOI:10.1039/D4CY00923A

Mengyan Huang, Bo Liu, Junwei Wu, Junfeng Gu, Yichen Zheng, Peiyan Ma, Bei Li and Zhengyi Fu

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引用次数: 0

摘要

二硫化钼（MoS2）因其合适的价带边缘而在催化氧进化反应（OER）方面具有巨大潜力。然而，关键中间产物 *OH 和 *OOH 在催化位点的高吸附能垒严重限制了其催化活性。在这项研究中，我们设计了一种用于 OER 的羧基装饰 MoC@MoS2 复合材料（CC-MoC@MoS2）电催化剂，其中 MoS2 的 S 位点可有效吸附这两种中间产物。优化后的 CC-MoC@MoS2 可快速、稳定地催化 OER，在碱性介质中，过电位分别为 248、307 和 359 mV 时，电流密度分别达到 10、50 和 100 mA cm-2。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Construction of a highly efficient MoS2-based composite electrocatalyst for the oxygen evolution reaction†

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Construction of a highly efficient MoS2-based composite electrocatalyst for the oxygen evolution reaction†

Molybdenum disulfide (MoS₂) has great potential for the catalysis of the oxygen evolution reaction (OER) due to its suitable valence band edge. However, the high adsorption energy barriers of the key intermediates *OH and *OOH at the catalytic sites severely limit its catalytic activity. In this research, we designed a carboxyl-decorated MoC@MoS₂ composite (CC-MoC@MoS₂) electrocatalyst for OER, in which the S sites of MoS₂ provide effective adsorption of the two intermediates. The optimized CC-MoC@MoS₂ could catalyze OER rapidly and stably, reaching current densities of 10, 50 and 100 mA cm⁻² in alkaline medium at overpotentials of 248, 307 and 359 mV, respectively.

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来源期刊

Catalysis Science & Technology CHEMISTRY, PHYSICAL-

CiteScore

8.70

自引率

6.00%

发文量

587

审稿时长

1.5 months

期刊介绍： A multidisciplinary journal focusing on cutting edge research across all fundamental science and technological aspects of catalysis. Editor-in-chief: Bert Weckhuysen Impact factor: 5.0 Time to first decision (peer reviewed only): 31 days