Oxygen vacancies on Nb2O5 enhanced the performance of H2O2 electrosynthesis from O2 reduction

Xiaoge Peng; Shijie Zhang; Zhikang Bao; Lei Ding; Guoliang Wang; Yizhen Shao; Zaixiang Xu; Wenkai Ji; Ge Feng; Shibin Wang; Xing Zhong; Jianguo Wang

doi:10.1039/d2cc02577a

Oxygen vacancies on Nb₂O₅ enhanced the performance of H₂O₂ electrosynthesis from O₂ reduction

Chem Commun (Camb). 2022 Jul 26;58(60):8428-8431. doi: 10.1039/d2cc02577a.

Authors

Affiliation

¹ Institute of Industrial Catalysis, College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Hangzhou, 310032, China. jgw@zjut.edu.cn.

PMID: 35796312
DOI: 10.1039/d2cc02577a

Abstract

A serial oxygen vacancy (O_V) on Nb₂O₅ is synthesised by H₂ calcination, and H-300 exhibited high selectivity and activity for H₂O₂ (93.4%, 562.5 mmol g_cat^-1). A volcano relationship is identified between the O_V content and performance, which provides an attractive insight into designing electrocatalysts.