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
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.
