The synergistic effect of Co3O4 and KNbO3 in Co3O4@KNbO3 composite for enhanced performance of water oxidation

被引：5
|
作者：
Zhang, Jingjing [1 ]
Chen, Jingwen [1 ]
Chen, Yahui [1 ]
Shi, Chunhui [1 ]
Hu, Libing [1 ]
Zhu, Jikui [1 ]
机构：
[1] Tarim Univ, Sch Chem & Chem Engn, Alar 843300, Peoples R China
来源：
MATERIALS LETTERS | 2023年 / 352卷
关键词：
Co 3 O 4 @KNbO 3 composite; Oxygen evolution reaction; Energy storage and conversion;
D O I：
10.1016/j.matlet.2023.135178
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A novel Co3O4@KNbO3 composite composed by Co3O4 and KNbO3 was synthesized via a two-step process combining the sol-gel method with calcination. Impressively, the obtained Co3O4@KNbO3 can be used as an efficient OER electrocatalyst with an overpotential of 330 mV at 10 mA center dot cm  2, a low Tafel slope of 61 mV center dot dec-1, and a negligible increase of the overpotential after the 3,000 cycle stability test. The excellent performance for OER was ascribed to the abundant electrochemical active sites and synergistic effect between Co3O4 and KNbO3.
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页数：4
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