Efficient Hydrogen Evolution Promoted by Short Pathway-Hydrogen Spillover Over P-Doped Pt₃Co

Chengfei Li; Chuan Tian; Haibo Tang; Minrui Liu; Lirong Zheng; Fuzhi Huang; Gao-Ren Li; Qi Li

doi:10.1021/acsenergylett.3c02021

journal article·2023-12-08

Efficient Hydrogen Evolution Promoted by Short Pathway-Hydrogen Spillover Over P-Doped Pt₃Co

Chengfei Li, Chuan Tian, Haibo Tang, Minrui Liu, Lirong Zheng, Fuzhi Huang, Gao-Ren Li, Qi Li

ACS Energy Letters· Volume 8· Issue 12

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Source abstract

Abstract

Developing highly active electrocatalysts for operating at industrial current density with a low overpotential still remains a major challenge. Herein, we developed a strategy of short pathway-hydrogen spillover to facilitate the high current density operation, in which the hydrogen-enriched phases transfer to hydrogen-deficient phases in P-doped Pt 3 Co anchored on N-doped carbon (P-Pt 3 Co/NC). This strategy alleviated the compromise between the long reaction pathway and the undesirable interfacial barrier of hydrogen spillover for metal–support electrocatalysts. Consequently, P-Pt 3 Co/NC demonstrates a low overpotential of 219 mV at 1.5 A cm –2 in acidic media. Comprehensive experiment and theoretical calculation results revealed that the doped and negatively charged P site possesses a large capacity for storing protons and subsequently transferring to the nearby hydrogen-deficient Pt site with favorable H 2 desorption. This significantly increases the hydrogen coverage on the Pt to break the limitation of hydrogen transfer kinetics with a low energy carrier.

Source: openalex_inverted_index · Quality: baseline

Research context

Catalysis & surfaces

OpenAlex topics: Electrocatalysts for Energy Conversion · Fuel Cells and Related Materials · Advanced battery technologies research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

National Energy Key Laboratory for New Hydrogen-Ammonia Energy Technologies, Foshan Xianhu Laboratory, Foshan 528200, PR China

State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, PR China

Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, PR China

College of Materials Science and Engineering, Sichuan University, Chengdu 610065, PR China

Funding

Basic and Applied Basic Research Foundation of Guangdong Province · Fundamental Research Funds for the Central Universities · National Natural Science Foundation of China · Sichuan Province Science and Technology Support Program · Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Wuhan University of Technology

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