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Electron transfer at the heterojunction interface of CoP/MoS2 for efficient electrocatalytic hydrogen evolution reaction.
Zhang, Lili; Xu, Aijiao; Shi, Xinxing; Zhang, Huanhuan; Wang, Zongpeng; Shen, Shijie; Zhang, Jitang; Zhong, Wenwu.
Afiliación
  • Zhang L; Zhejiang Key Laboratory for Island Green Energy and New Materials, Taizhou University Taizhou 318000 China zhangjt@tzc.edu.cn zhongww@tzc.edu.cn.
  • Xu A; Zhejiang Key Laboratory for Island Green Energy and New Materials, Taizhou University Taizhou 318000 China zhangjt@tzc.edu.cn zhongww@tzc.edu.cn.
  • Shi X; Zhejiang Key Laboratory for Island Green Energy and New Materials, Taizhou University Taizhou 318000 China zhangjt@tzc.edu.cn zhongww@tzc.edu.cn.
  • Zhang H; Zhejiang Key Laboratory for Island Green Energy and New Materials, Taizhou University Taizhou 318000 China zhangjt@tzc.edu.cn zhongww@tzc.edu.cn.
  • Wang Z; Zhejiang Key Laboratory for Island Green Energy and New Materials, Taizhou University Taizhou 318000 China zhangjt@tzc.edu.cn zhongww@tzc.edu.cn.
  • Shen S; Zhejiang Key Laboratory for Island Green Energy and New Materials, Taizhou University Taizhou 318000 China zhangjt@tzc.edu.cn zhongww@tzc.edu.cn.
  • Zhang J; Zhejiang Key Laboratory for Island Green Energy and New Materials, Taizhou University Taizhou 318000 China zhangjt@tzc.edu.cn zhongww@tzc.edu.cn.
  • Zhong W; ERA Co, Ltd. Taizhou 318020 China.
RSC Adv ; 14(27): 19294-19300, 2024 Jun 12.
Article en En | MEDLINE | ID: mdl-38887637
ABSTRACT
Modulating the electronic states of electrocatalysts is critical for achieving efficient hydrogen evolution reaction (HER). However, how to develop electrocatalysts with superior electronic states is an urgent challenge that must be addressed. Herein, we prepared the CoP/MoS2 heterojunction with a microsphere morphology consisting of thin nanosheets using a facile two-step method. The catalyst's ultrathin nanosheet structure not only provides an extensive surface area for exposing active sites, but it also enables ion transport and bubble release. Electron transfer occurs between CoP and MoS2, optimizing the heterojunction's charge distribution and enhancing the intermediates' adsorption capabilities. As a result, the CoP/MoS2 heterojunction exhibits outstanding electrocatalytic hydrogen evolution activity with an overpotential of only 88 mV at a current density of 10 mA cm-2, which exceeds both the sulfide heterojunction Co9S8/MoS2 and the phosphide heterojunction CoP/CoMoP2. The experimental results and DFT calculation results show that the former has stronger synergistic effects and higher HER activity. This work sheds light on the exploration of efficient heterojunction electrocatalysts with excellent electronic structures.

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: RSC Adv Año: 2024 Tipo del documento: Article Pais de publicación: Reino Unido

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: RSC Adv Año: 2024 Tipo del documento: Article Pais de publicación: Reino Unido