Performance of Low-Pressure-Plasma-Processed RuCo Electrocatalysts for Hydrogen Evolution Reaction

Chia-Yun Tseng; Yu-Lun Su; I-Chih Ni; Chih-I Wu; I-Chun Cheng; Jian-Zhang Chen

doi:10.1149/2754-2734/ad10fa

ECS Advances (Jan 2023)

Performance of Low-Pressure-Plasma-Processed RuCo Electrocatalysts for Hydrogen Evolution Reaction

Chia-Yun Tseng,
Yu-Lun Su,
I-Chih Ni,
Chih-I Wu,
I-Chun Cheng,
Jian-Zhang Chen

Affiliations

Chia-Yun Tseng: Graduate Institute of Applied Mechanics, National Taiwan University , Taipei City 10617, Taiwan; Advanced Research Center for Green Materials Science and Technology, National Taiwan University , Taipei City 10617, Taiwan
Yu-Lun Su: Graduate Institute of Applied Mechanics, National Taiwan University , Taipei City 10617, Taiwan; Advanced Research Center for Green Materials Science and Technology, National Taiwan University , Taipei City 10617, Taiwan
I-Chih Ni: Graduate Institute of Photonics and Optoelectronics and Department of Electrical Engineering, National Taiwan University , Taipei City 10617, Taiwan
Chih-I Wu: Graduate Institute of Photonics and Optoelectronics and Department of Electrical Engineering, National Taiwan University , Taipei City 10617, Taiwan; Graduate School of Advanced Technology, National Taiwan University , Taipei City 10617, Taiwan
I-Chun Cheng: Graduate Institute of Photonics and Optoelectronics and Department of Electrical Engineering, National Taiwan University , Taipei City 10617, Taiwan; Innovative Photonics Advanced Research Center (i-PARC), National Taiwan University , Taipei City 10617, Taiwan
Jian-Zhang Chen: ORCiD; Graduate Institute of Applied Mechanics, National Taiwan University , Taipei City 10617, Taiwan; Advanced Research Center for Green Materials Science and Technology, National Taiwan University , Taipei City 10617, Taiwan; Graduate School of Advanced Technology, National Taiwan University , Taipei City 10617, Taiwan; Innovative Photonics Advanced Research Center (i-PARC), National Taiwan University , Taipei City 10617, Taiwan

DOI: https://doi.org/10.1149/2754-2734/ad10fa
Journal volume & issue: Vol. 2, no. 4
p. 042502

Abstract

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RuCo/acid-treated nickel foam (ANF) has been reported to be an excellent electrocatalyst for the hydrogen evolution reaction (HER). In this study, we perform plasma treatment with Ar, Ar/H _2 (95:5), and Ar/O _2 (95:5) as working gases for surface modification to explore the effect on HER performance. The developed electrocatalysts are tested in an alkaline solution (1 M KOH); the results show that Ar/H _2 (95:5) plasma treatment significantly improves the electrocatalytic activity of RuCo/ANF, achieving an overpotential of 98 mV at a current density of 10 mA cm ^−2 . Electrochemical impedance spectroscopy and cyclic voltammetry analyses shSow a large reduction in the charge transfer impedance and a significant increase in the electric double-layer capacitance. This study provides a facile strategy to activate RuCo to improve HER performance.

Published in ECS Advances

ISSN: 2754-2734 (Online)
Publisher: IOP Publishing
Country of publisher: United Kingdom
LCC subjects: Technology: Chemical technology: Industrial electrochemistry
Website: https://iopscience.iop.org/journal/2754-2734

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