A hydrated strontium cobalt oxyhydroxide Ruddlesden-Popper phase as an oxygen electrocatalyst for aqueous lithium-oxygen rechargeable batteries

Hidetoshi Sonoki; Daisuke Mori; Sou Taminato; Yasuo Takeda; Osamu Yamamoto; Nobuyuki Imanishi

doi:10.1039/c9cc01953g

A hydrated strontium cobalt oxyhydroxide Ruddlesden-Popper phase as an oxygen electrocatalyst for aqueous lithium-oxygen rechargeable batteries

Chem Commun (Camb). 2019 Jul 4;55(52):7454-7457. doi: 10.1039/c9cc01953g. Epub 2019 Jun 11.

Authors

Hidetoshi Sonoki¹, Daisuke Mori¹, Sou Taminato¹, Yasuo Takeda¹, Osamu Yamamoto¹, Nobuyuki Imanishi¹

Affiliation

¹ Graduate School of Engineering, Mie University, 1577 Kurimamachiya-cho, Tsu, Mie 514-8507, Japan. daisuke.mori@chem.mie-u.ac.jp.

PMID: 31184356
DOI: 10.1039/c9cc01953g

Abstract

This study investigates oxygen electrocatalytic activities of perovskite-related compounds using a rotating disk electrode technique in an aqueous solution containing lithium chloride and lithium hydroxide. A hydrated oxyhydroxide Ruddelesden-Popper phase, Sr₃Co₂O₅(OH)₂·2H₂O, exhibits excellent performance especially in the oxygen evolution reaction.