Oxygen vacancies enriched Co3O4 nanoflowers with single layer porous structures for water splitting

被引：62

作者：

Du, Jian ^{[1
]}

Li, Chao ^{[1
]}

Tang, Qunwei ^{[1
]}

机构：

[1] Jinan Univ, Coll Informat Sci & Technol, Inst New Energy Technol, Guangzhou 510632, Guangdong, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2020年 / 331卷

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

Electrocatalysts; Porous structure; Water splitting; Co3O4; Renewable energy; COBALT OXIDE; BIFUNCTIONAL ELECTROCATALYSTS; NANOSHEET ARRAYS; HYDROGEN; RICH; OXYHYDROXIDE; HYDROXIDE; OXIDATION; NANORODS; HYBRIDS;

D O I：

10.1016/j.electacta.2019.135456

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Vacancy enriched electrocatalysts are crucial in enhancing the catalytic activity for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) through a defect engineering. Herein, oxygen vacancies enriched Co3O4 nanoflowers with single layer porous structures are made to study their catalytic activity toward water splitting. The as-synthesized defects enriched Co3O4 presents flowers-like nanostructures and possesses high specific surface area (84 m(2) g(-1)) with uniform pore size (4 nm). On behalf of the unique morphology and electronic structure, the Co3O4 nanoflowers display enhanced HER and OER performances compared with commercial Co3O4 nanoparticles (similar to 50 nm). In addition, it still presents good catalytic without remarkably decay in potential over 9 days. (c) 2019 Elsevier Ltd. All rights reserved.

引用

页数：8

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