Ag Nanoparticles and Rod-Shaped AgCl Decorated Porous PEDOT as a Bifunctional Material for Hydrogen Evolution Catalyst and Supercapacitor Electrode

Chunyong Zhang; Haoyu Wang; Li Shu; Zhe Li; Jirong Bai; Yinpin Wen; Lin Zhu; Yin Geng; Hengfei Qin

doi:10.3390/molecules28248063

Molecules (Dec 2023)

Ag Nanoparticles and Rod-Shaped AgCl Decorated Porous PEDOT as a Bifunctional Material for Hydrogen Evolution Catalyst and Supercapacitor Electrode

Chunyong Zhang,
Haoyu Wang,
Li Shu,
Zhe Li,
Jirong Bai,
Yinpin Wen,
Lin Zhu,
Yin Geng,
Hengfei Qin

Affiliations

Chunyong Zhang: School of Chemistry and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, China
Haoyu Wang: School of Chemistry and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, China
Li Shu: Jiangsu Key Laboratory of Precious Metal Chemistry and Technology, Jiangsu University of Technology, Changzhou 213001, China
Zhe Li: School of Chemistry and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, China
Jirong Bai: Research Center of Secondary Resources and Environment, School of Chemical Engineering and Materials, Changzhou Institute of Technology, Changzhou 213022, China
Yinpin Wen: Jiangsu Key Laboratory of Precious Metal Chemistry and Technology, Jiangsu University of Technology, Changzhou 213001, China
Lin Zhu: School of Chemistry and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, China
Yin Geng: School of Chemistry and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, China
Hengfei Qin: School of Chemistry and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, China

DOI: https://doi.org/10.3390/molecules28248063
Journal volume & issue: Vol. 28, no. 24
p. 8063

Abstract

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PEDOT-Ag/AgCl is a highly promising material with dual functions of hydrogen evolution reaction (HER) and supercapacitors. In this study, a simple low-temperature stirring and light irradiation method was used to synthesize PEDOT-Ag/AgCl on the surface. Then, PEDOT-Ag/AgCl was analyzed using X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, and transmission electron microscopy. PEDOT-Ag/AgCl reacted in 1 M KOH alkaline electrolyte with an overpotential of 157 mV at 20 mA·cm−2 and a Tafel slope of 66.95 mv·dec−1. Owing to the synergistic effect of PEDOT and Ag/AgCl, this material had a small resistance (1.7 Ω) and a large specific capacitance (978 F·g−1 at current density of 0.5 A·g−1). The synthesis method can prepare nanostructured PEDOT with uniformly-distributed Ag nanoparticles and rod-shaped AgCl on the surface, which can be used as both HER electrocatalysts and supercapacitor electrodes.

Published in Molecules

ISSN: 1420-3049 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry: Organic chemistry
Website: http://www.mdpi.com/journal/molecules

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