期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 814, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2019.152239
关键词
Co3O4 nanoparticles; MnO2 nanorods; Co3O4/MnO2 nanorods hybrid material; Electrocatalyst; Oxygen reduction reaction
资金
- National Natural Science Foundation of China [61874155]
- Fund of Guangdong R&D Science and Technology [2017A050501053]
- Advanced Energy Storage Research Programme, Science and Engineering Research Council (SERC) of A*STAR (Agency for Science, Technology and Research), Singapore [IMRE/12-2P0503, IMRE/12-2P0504]
Electrocatalysts with high oxygen reduction reaction catalytic activity are essential to enhance the performance of metal-air batteries. Herein, we have developed Co3O4 nanocrystals anchored on MnO2 nanorods, synthesized from a two-step hydrothermal method. The well-dispersed Co3O4 nanoparticles are attached onto the surface of MnO2 nanorods. Interestingly, compared with those electrocatalysts, MnO2 nanorods and Co3O4 naoparticles, Co3O4/MnO2 nanorods hybrid material demonstrates much higher ORR catalytic activity and high stability, suggesting a synergy coupling effect between Co3O4 nanoparticles and MnO2 nanorod. The great performance of the Zn-air and Al-air batteries fabricated by Co3O4/MnO2 nanorods hybrid material as catalyst suggests aforesaid hybrid catalyst is a relatively inexpensive and applicative solution for applications. (C) 2019 Elsevier B.V. All rights reserved.
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