Manipulating the Electrocatalytic Performance of NiCoP Nanowires by V Doping Under Acidic and Basic Conditions for Hydrogen and Oxygen Evolution Reactions

Zhongxin Duan; Xiaojie Tan; Yuchen Sun; Wei-chao Zhang; Ahmad Umar; Xiang Wu

doi:10.1021/acsanm.1c02224

journal article·2021-10-22

Manipulating the Electrocatalytic Performance of NiCoP Nanowires by V Doping Under Acidic and Basic Conditions for Hydrogen and Oxygen Evolution Reactions

Zhongxin Duan, Xiaojie Tan, Yuchen Sun, Wei-chao Zhang, Ahmad Umar, Xiang Wu

ACS Applied Nano Materials· Volume 4· Issue 10

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Abstract

It is critical to design bifunctional nonprecious electrocatalysts with low costs and high efficiency for hydrogen production. Conventional electrocatalysts, on the other hand, frequently exhibit significant overpotential and slow transfer kinetics in both hydrogen and oxygen evolution reactions (HER and OER). Cation doping engineering is believed to be a suitable way to deal with this problem. To accomplish effective water electrolysis, we use a simple vanadium ion doping strategy to prepare 0.5V-NiCoP. In acidic and alkaline environments, the as-synthesized samples show an overpotential of 78.7 and 56.1 mV for the HER at 10 mA cm–2, respectively. In 1 M KOH, it shows an overpotential of 254 mV for the OER at 50 mA cm–2. Furthermore, under a two-electrode alkaline state, the as-obtained products only require 1.67 V (50 mA cm–2) to drive water splitting.

Source: openalex_inverted_index · Quality: baseline

Research context

Nanomaterials Catalysis & surfaces

OpenAlex topics: Electrocatalysts for Energy Conversion · Advanced battery technologies research · Electrochemical Analysis and Applications

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

Affiliations

School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, P. R. China

Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin 150080, P. R. China

Promising Centre for Sensors and Electronic Devices (PCSED), Department of Chemistry, College of Science and Arts, Najran University, Najran 11001, Saudi Arabia

Funding

Najran University · National Natural Science Foundation of China · Key Laboratory of Engineering Dielectrics and Its Application, Harbin University of Science and Technology

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