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

页码：9878 / 9881

页数：4

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