Effects of dissolved 3d-block metal ions on PEM water electrolysis performance

Shuang Kong; Kazuna Fushimi; Ailong Li; Ryuhei Nakamura

doi:10.1039/d4cc04474f

Effects of dissolved 3d-block metal ions on PEM water electrolysis performance

Chem Commun (Camb). 2024 Nov 20. doi: 10.1039/d4cc04474f. Online ahead of print.

Authors

Shuang Kong¹, Kazuna Fushimi¹, Ailong Li¹, Ryuhei Nakamura^{1

2}

Affiliations

¹ Biofunctional Catalyst Research Team, RIKEN Center for Sustainable Resource Science (CSRS), 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan. shuang.kong@riken.jp.
² Earth-Life Science Institute (ELSI), Tokyo Institute of Technology, 2-12-1-I7E Ookayama, Meguro-ku, Tokyo, 152-8550, Japan.

PMID: 39564802
DOI: 10.1039/d4cc04474f

Abstract

The influence of water impurities caused by 3d-block metal ion dissolution on proton exchange membrane (PEM) water electrolysis was investigated. While Co²⁺ and Ni²⁺ significantly decreased membrane conductivity, MnO₄^- anions exhibited a negligible effect. As MnO₄^- had low affinity for perfluorosulfonic acid in the PEM, Mn oxides materials have promising potential for use in PEM water electrolyzers.