Thermally activated growth of ternary oxyhydroxides on perovskites for efficient water oxidation

Chao Wu; Zhanhong Xiao; Ying Tang; Junhua Li; Anqi Zou; Jiliang Zhu; Xiaopeng Wang; Jiagang Wu

doi:10.1039/d4cc02744b

Thermally activated growth of ternary oxyhydroxides on perovskites for efficient water oxidation

Chem Commun (Camb). 2024 Aug 27;60(70):9380-9383. doi: 10.1039/d4cc02744b.

Authors

Chao Wu^{1

2}, Zhanhong Xiao¹, Ying Tang¹, Junhua Li¹, Anqi Zou¹, Jiliang Zhu¹, Xiaopeng Wang^{1

3}, Jiagang Wu¹

Affiliations

¹ College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, China. [email protected].
² Institute of Sustainability for Chemical, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road Jurong Island, Singapore, 627833, Republic of Singapore.
³ State Key Laboratory of Intelligent Construction and Healthy Operation and Maintenance of Deep Underground Engineering, Sichuan University, Chengdu, 610065, China.

PMID: 39129717
DOI: 10.1039/d4cc02744b

Abstract

Perovskite oxides are promising catalysts for water oxidation. Herein, we constructed a Sr₃CoFeWO₉ triple perovskite with Co, Fe, and W atoms sharing octahedral positions. Thermally activated growth of an amorphous FeCoW oxyhydroxide layer on this perovskite pre-catalyst greatly enhanced the oxygen evolution reaction (OER) activities, reducing overpotential at 10 mA cm^-2_geo by 115 mV. This highlights the benefits of compositional design and structural reconstruction for efficient electrocatalytic materials.