journal article·2024-10-07

Construction of Sulfur Doped Nickel and Copper Interfaces for Hydrogen Evolution Reaction

Jiajie Yu, Shiwen Zhang, Yuyang Liu, Yurun Tong, Yijie Zhong, Bin He, Enlai Hu, Jing Zhang, Zhongwei Chen

ACS Materials Letters· Volume 6· Issue 10
Publisher page

Abstract

Developing efficient and economical electrocatalysts for the hydrogen evolution reaction (HER) is important for high-purity hydrogen generation. Transition metals-based compounds have been considered as promising substitutes for the Pt-based electrocatalysts toward HER. Nevertheless, pure metals display inert HER activity because of their unfavorable adsorption behavior for intermediates. Herein, thiourea engaged electrodeposition was conducted to fabricate sulfur-doped nickel and copper (S–Ni/Cu) nanowires that contain numerous interfaces. Interface and sulfur doping redistributed the electronic states of the electrocatalyst structure, which accelerated the adsorption of hydrogen atoms at active sites and promoted the water dissociation process. Consequently, the HER overpotential of S–Ni/Cu is only 67 mV at 10 mA cm –2, with excellent durability.
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Research context

OpenAlex topics: Electrocatalysts for Energy Conversion · Hydrogen Storage and Materials · Advanced battery technologies research

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

Affiliations

Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University, Jinhua, 321004, Zhejiang People’s Republic of China

Huzhou Key Laboratory of Environmental Functional Materials and Pollution Control, Department of Materials Chemistry, Huzhou University, Huzhou, 313000, Zhejiang People’s Republic of China

State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, People’s Republic of China

Power Battery and Systems Research Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, People’s Republic of China

Funding

Zhejiang Normal University · National Natural Science Foundation of China · Chinese Academy of Sciences · State Key Laboratory of Catalysis · Dalian Revitalization Talents Program · Liaoning Binhai Laboratory · Huzhou Key Laboratory of Environmental Functional Materials and Pollution Control

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