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Hierarchical MoN@NiFe-LDH Heterostructure Nanowire Array for Highly Efficient Electrocatalytic Hydrogen Evolution.
Dang, Yujian; Li, Xu; Chen, Zekun; Zhao, Xudong; Ma, Bo; Chen, Yantao.
Afiliação
  • Dang Y; Tianjin Key Lab for Photoelectric Materials and Devices, Key Laboratory of Display Materials and Photoelectric Devices, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, 300384, China.
  • Li X; Tianjin Key Lab for Photoelectric Materials and Devices, Key Laboratory of Display Materials and Photoelectric Devices, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, 300384, China.
  • Chen Z; Tianjin Key Lab for Photoelectric Materials and Devices, Key Laboratory of Display Materials and Photoelectric Devices, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, 300384, China.
  • Zhao X; Tianjin Key Lab for Photoelectric Materials and Devices, Key Laboratory of Display Materials and Photoelectric Devices, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, 300384, China.
  • Ma B; Tianjin Key Lab for Photoelectric Materials and Devices, Key Laboratory of Display Materials and Photoelectric Devices, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, 300384, China.
  • Chen Y; Tianjin Key Lab for Photoelectric Materials and Devices, Key Laboratory of Display Materials and Photoelectric Devices, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, 300384, China.
Small ; 19(50): e2303932, 2023 Dec.
Article em En | MEDLINE | ID: mdl-37612814
The slow charge transfer and high energy barrier are the key restrictions of cost-effective electrocatalysts for hydrogen production. A hierarchical heterostructure of MoN@NiFe-layered double hydroxides (LDH) is developed, with NiFe-LDH nanosheets supported on MoN nanowire arrays. The as-prepared MoN@NiFe-LDH exhibits a remarkably high performance on hydrogen production in alkaline medium, which is close to the benchmark Pt/C. The theoretical computations indicate that MoN@NiFe-LDH has a metallic character inherited from MoN, which gives rise to the promoted charge transfer. Furthermore, the adsorption intensity of intermediates on MoN@NiFe-LDH is optimized and thereby the energy barrier is diminished. This work demonstrates the significance of constructing heterostructure for boosting the charge transfer and reducing the energy barrier, which can shed light on the development of highly efficient and low-cost electrocatalyst for hydrogen production.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2023 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2023 Tipo de documento: Article