Enhancing Oxygen Reduction Activity by Exposing (111) Facets of CoFe2O4 Octahedron on Graphene

被引：6
|
作者：
Zhang, Yong [1 ,2 ]
Zhang, Guoxin [3 ]
Li, Wanxi [1 ,4 ]
Li, Xiaoming [1 ]
Uchiyama, Katsumi [2 ]
Chen, Chengmeng [1 ]
机构：
[1] Chinese Acad Sci, Key Lab Carbon Mat, Inst Coal Chem, Taiyuan 030001, Shanxi, Peoples R China
[2] Tokyo Metropolitan Univ, Dept Appl Chem, Grad Sch Urban Environm Sci, Hachioji, Tokyo 1920397, Japan
[3] Shandong Univ Sci & Technol, Coll Elect Engn & Automat, Qingdao 266590, Peoples R China
[4] Jinzhong Univ, Coll Chem & Chem Engn, Jinzhong 030619, Peoples R China
来源：
CHEMISTRYSELECT | 2017年 / 2卷 / 30期
关键词：
CoFe2O4; octahedron; CV; Graphene; ORR; LSV; SHAPE-CONTROLLED SYNTHESIS; NITROGEN-DOPED GRAPHENE; ONE-POT SYNTHESIS; ELECTROCATALYTIC ACTIVITY; ALKALINE MEDIA; NANOPARTICLES; EVOLUTION; NANOCOMPOSITES; NANOSPHERES; CATALYSTS;
D O I：
10.1002/slct.201701892
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Efficient catalysts are required to promote oxygen reduction reaction (ORR) in order to implant ORR-involved clean energy technologies such as fuel cells and metal-air batteries. In this study, (111) facet-exposed CoFe2O4 nano-octahedrons crystals (NOCs) were grown on graphene via facile hydrothermal method and investigated as catalyst for ORR. The as-made CoFe2O4 NOCs-graphene composite exhibits very high activity towards ORR, meanwhile, excellent durability and very good tolerance to methanol were observed, which verifies the importance of exposing active facets of non-precious metal-based catalysts and also demonstrates its high potentials of replacing precious Pt for practical applications.
引用
收藏
页码：9878 / 9881
页数：4
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