An Electrochemical Ethylamine/Acetonitrile Redox Method for Ambient Hydrogen Storage

• DOI: 10.1021/acsami.1c20498
• Publication Date: 2021-11-15T17:07:30Z
• Authors: Dezhen Wu; Jialu Li; Libo Yao; Rongxuan Xie; Zhenmeng Peng
• Keywords: Ethylamine

Hydrogen storage presents a major difficulty in the development of hydrogen economy. Herein, we report new electrochemical ethylamine/acetonitrile redox method for with an 8.9 wt % theoretical capacity under ambient conditions. This exhibits low onset overpotentials 0.19 V CH3CH2NH2 dehydrogenation to CH3CN and 0.09 hydrogenation using commercial Pt black catalyst. By assembling full cell that couples CH3CH2NH2/CH3CN reactions evolution oxidation reactions, demonstrate complete cycle at fast rates, only 52.5 kJ/mol energy consumption H2 uptake release rate 1 L/m2·h. provides viable strategy meets 2025 Department Energy onboard target.