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Nano Research

Article Title

Interfacial engineering of Ni/V2O3 for hydrogen evolution reaction

Authors

Yang Chen, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
Yuan Rao, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
Rongzhi Wang, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
Yanan Yu, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
Qiulin Li, Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, Institute for Clean Energy and Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing 400715, China
Shujuan Bao, Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, Institute for Clean Energy and Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing 400715, China
Maowen Xu, Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, Institute for Clean Energy and Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing 400715, China
Qin Yue, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
Yanning Zhang, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
Yijin Kang, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China

Keywords

hydrogen evolution reaction, hierarchical materials, interface, electrocatalysis, vanadium oxide

Abstract

Electrocatalytic water splitting offers a sustainable route for hydrogen production, enabling the clean and renewable alternative energy system of hydrogen economy. The scarcity and high-cost of platinum-group-metal (PGM) materials urge the exploration of high-performance non-PGM electrocatalysts. Herein, a unique hierarchical structure of Ni/V2O3 with extraordinary electrocatalytic performance (e.g., overpotentials as low as 22 mV at 20 mA·cm–2 and 94 mV at 100 mA·cm–2) toward hydrogen evolution reaction in alkaline electrolyte (1 M KOH) is reported. The investigation on the hierarchical Ni/V2O3 with a bimodal size-distribution also offers insight of interfacial engineering that only proper Ni/V2O3 interface can effectively improve H2O adsorption, H2O dissociation as well as H adsorption, for an efficient hydrogen production.

Graphical Abstract

Publisher

Tsinghua University Press

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