Thermal-shock-processed thin proton exchange membranes for efficient and durable water electrolysis with reduced hydrogen crossover

Yuyang Wang; Wenyan Wu; Fang Chen; Jian Huang; Lu Qian; Ernesto Placidi; Williane da Silva Freitas; Alessandra D’Epifanio; Enrico Traversae; Jun Li

doi:10.1039/D5CC04399A

Thermal-shock-processed thin proton exchange membranes for efficient and durable water electrolysis with reduced hydrogen crossover

Yuyang Wang,†^a Wenyan Wu,†^a Fang Chen,

*^b Jian Huang,^a Lu Qian,^c Ernesto Placidi,^d Williane da Silva Freitas,^e Alessandra D’Epifanio,

^e Enrico Traversae

^e and Jun Li

*^ab

Author affiliations

* Corresponding authors

^a Key Laboratory of Low-grade Energy Utilization Technologies and Systems, National Innovation Center for Industry-Education Integration of Energy Storage Technology, School of Energy and Power Engineering, Chongqing University, Ministry of Education, Chongqing, China
E-mail: lijun@cqu.edu.cn

^b School of Chemistry and Chemical Engineering, Northwestern Polytechnical University Chang’an campus, Xi’an, Shaanxi, P. R. China
E-mail: chenfang820811@nwpu.edu.cn

^c Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China

^d Department of Physics, University of Sapienza, Piazzale Aldo Moro 2, I-00185 Rome, Italy

^e Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, 00133 Rome, Italy

Abstract

This work presents a Joule-heating strategy to create thin proton exchange membranes (PEMs) with high proton conductivity and low H₂ crossover. The treated PEMs assembled electrolyzer achieves a record current density of 3.72 A cm⁻² at 1.9 V with 1250 h durability at 2 A cm⁻² for water electrolysis.

Chemical Communications

Thermal-shock-processed thin proton exchange membranes for efficient and durable water electrolysis with reduced hydrogen crossover

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Thermal-shock-processed thin proton exchange membranes for efficient and durable water electrolysis with reduced hydrogen crossover

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