journal article·2024-05-24

Nickel Nanoparticles Supported on P-Doped Tungsten Nitride Nanosheets as Catalysts for Hydrogen Evolution

Shuqin Liang, Pengyuan Wang, Meizan Jing, Huashuai Hu, Shaohong Zhang, Zifan Cang, Yuxin Zhao, Hanzhang Gong, Jian Liu

ACS Applied Nano Materials· Volume 7· Issue 10
Publisher page

Abstract

Electrochemical water decomposition is a promising alternative to hydrogen production (HER), but it is significantly limited by the scarcity of precious metals. Here, we propose a highly efficient yet low-cost phosphorus-modified nickel/tungsten nitride (P-Ni/WN) electrocatalyst, which exhibits excellent HER performance with a low overpotential (45 mV at 10 mA cm –2 ) and a high exchange current density (2.02 mA cm –2 ). Density functional theory (DFT) calculations and experiments reveal that the introduction of P and Ni attracts electrons from W species, making WN more conducive to the HER reaction. Moreover, the P doping contributes to the dispersion of Ni nanoparticles on the WN support, thereby enhancing the HER performance of the P-Ni/WN catalyst. This work provides a facile approach to improve the electrocatalytic activity of nickel-based catalysts in the context of the HER.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Electrocatalysts for Energy Conversion · Advanced Memory and Neural Computing · Fuel Cells and Related Materials

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

Affiliations

College of Chemistry and Chemical Engineering, Dezhou University, Dezhou 253023, China

Shandong Provincial Key Laboratory of Monocrystalline Silicon Semiconductor Materials and Technology, Dezhou University, Dezhou 253023, China

State Key Laboratory of Heavy Oil Processing and Beijing Key Lab of Oil & Gas Pollution Control, China University of Petroleum, Beijing 102249, China

Department of Chemistry, Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Tsinghua University, Beijing 100084, China

School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China

Funding

Natural Science Foundation of Shandong Province · Foundation of Dezhou University · Shandong Provincial Key Laboratory of Monocrystalline Silicon Semiconductor Materials and Technology · Shandong Universities Engineering Research Center of Integrated Circuits Functional Materials and Expanded Applications

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