The role of alkali metal cations and platinum-surface hydroxyl in the alkaline hydrogen evolution reaction

• Published in: Nature catalysis Vol. 5; no. 10; pp. 923 - 933
• Main Authors: Shah, Aamir Hassan, Zhang, Zisheng, Huang, Zhihong, Wang, Sibo, Zhong, Guangyan, Wan, Chengzhang, Alexandrova, Anastassia N, Huang, Yu, Duan, Xiangfeng
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group 01.10.2022
• Subjects: Adsorption; Alkali metals; Cations; Electrochemical impedance spectroscopy; Electrodes; Electrolysis; Electrolytes; Energy; Hydrogen; Hydrogen evolution reactions; Kinetics; Metal ions; Molecular dynamics; Platinum; Protons; Spectrum analysis; Voltammetry

The platinum-catalysed hydrogen evolution reaction (HER) generally shows poorer kinetics in alkaline electrolyte and represents a key challenge for alkaline water electrolysis. In the presence of alkali metal cations and hydroxyl anions, the electrode–electrolyte (platinum–water) interface in an alk...