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Directed Dual Charge Pumping Tunes the d-Orbital Configuration of Pt Cluster Boosting Hydrogen Evolution Kinetic.
Zhang, Zeyi; Wu, Wei; Chen, Suhao; Wang, Zichen; Tan, Yangyang; Chen, Wei; Guo, Fei; Chen, Runzhe; Cheng, Niancai.
Afiliación
  • Zhang Z; College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China.
  • Wu W; Department of Chemistry, University of Zurich, Winterthurerstrasse 190, Zurich, CH-8057, Switzerland.
  • Chen S; College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China.
  • Wang Z; College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China.
  • Tan Y; College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China.
  • Chen W; College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China.
  • Guo F; College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China.
  • Chen R; College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China.
  • Cheng N; College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China.
Small ; 20(22): e2307135, 2024 May.
Article en En | MEDLINE | ID: mdl-38126901
ABSTRACT
Achieving high catalytic activity with a minimum amount of platinum (Pt) is crucial for accelerating the cathodic hydrogen evolution reaction (HER) in proton exchange membrane (PEM) water electrolysis, yet it remains a significant challenge. Herein, a directed dual-charge pumping strategy to tune the d-orbital electronic distribution of Pt nanoclusters for efficient HER catalysis is proposed. Theoretical analysis reveals that the ligand effect and electronic metal-support interactions (EMSI) create an effective directional electron transfer channel for the d-orbital electrons of Pt, which in turn optimizes the binding strength to H*, thereby significantly enhancing HER efficiency of the Pt site. Experimentally, this directed dual-charge pumping strategy is validated by elaborating Sb-doped SnO2 (ATO) supported Fe-doped PtSn heterostructure catalysts (Fe-PtSn/ATO). The synthesized 3%Fe-PtSn/ATO catalysts exhibit lower overpotential (requiring only 10.5 mV to reach a current density of 10 mA cm- 2), higher mass activity (28.6 times higher than commercial 20 wt.% Pt/C), and stability in the HER process in acidic media. This innovative strategy presents a promising pathway for the development of highly efficient HER catalysts with low Pt loading.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Small Asunto de la revista: ENGENHARIA BIOMEDICA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Alemania
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Small Asunto de la revista: ENGENHARIA BIOMEDICA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Alemania