期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 41, 期 30, 页码 13024-13031出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2016.05.046
关键词
ZnCo2O4; Hollow porous structure; Oxygen reduction reaction; Electrocatalyst
资金
- New Century Excellent Talents in University [NCET-13-0684]
- Fund of State Key Laboratory of Information Photonics and Optical Communications (Beijing University of Posts and Telecommunications, P. R. China)
- National Natural Science Foundation of China [61574020, 51572032, 61376018, 51472221, 51472033, 51472196, 61377097]
- Program for Science & Technology Innovation Talents in Universities of Henan Province [14HASTIT018]
- Foundation for University young Key Teacher by Henan province [2011GGJS-140]
Hollow porous ZnCo2O4 microspheres have been successfully prepared by a simple solution-based assembly followed by calcination under an air atmosphere using zinc acetylacetonate Zn(C5H7O2)(2) and cobalt acetylacetonate Co(C5H7O2)(3) as raw materials. Scanning electron microscopy (SEM) and Transmission electron microscope (TEM) are used to reveal the synthesis mechanism of hollow porous structure, meanwhile, BET is used to analyze the specific surface area and pore size distribution. In the oxygen reduction reaction (ORR) test, hollow porous ZnCo2O4 microspheres exhibit enhanced ORR performance than bulk ZnCo2O4, mainly owing to the hollow porous structure which has more catalytic sites and higher efficiency of reactant exchange. Moreover, such catalyst also exhibits superior methanol tolerance ability and durability over commercial Pt/C catalyst. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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