Durable oxygen evolution reaction of one dimensional spinel CoFe2O4 nanofibers fabricated by electrospinning

被引：73

作者：

Zhang, Zhengmei ^{[1
]}

Zhang, Jingyan ^{[2
]}

Wang, Tao ^{[1
]}

Li, Zhiwei ^{[2
]}

Yang, Guijin ^{[1
]}

Bian, Haiqin ^{[1
]}

Li, Jinyun ^{[1
]}

Gao, Daqiang ^{[2
]}

机构：

[1] Northwest Normal Univ, Funct Mat Gansu Prov, Key Lab Atom & Mol Phys, Lanzhou 730070, Gansu, Peoples R China

[2] Lanzhou Univ, Minist Educ, Key Lab Magnetism & Magnet Mat, Lanzhou 730000, Gansu, Peoples R China

来源：

RSC ADVANCES | 2018年 / 8卷 / 10期

关键词：

WATER OXIDATION; HYDROGEN EVOLUTION; MAGNETIC-PROPERTIES; NITRIDE NANOSHEETS; ASSISTED SYNTHESIS; NANOWIRE ARRAYS; EFFICIENT; CATALYST; NANOTUBES; SURFACE;

D O I：

10.1039/c7ra11330g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

One dimensional spinel CoFe2O4 nanofibers were synthesized via the electrospinning technique. The nanofibers were calcined at different temperatures. All CoFe2O4 nanofibers show excellent oxygen evolution reaction (OER) performance. The nanofibers calcined at 750 degrees C have a multi-particle nanochain structure. The nanochain exhibits excellent catalytic performance for OER in 1 M KOH (pH = 14) producing a current density of 10 mA cm(-2) at an overpotential of 0.34 V, and the small onset potential of 1.32 V versus RHE, better than that of the commercial Ir/C (20%) catalyst. Furthermore, the stability of CoFe2O4 multi-particle nanochains toward the OER decreases by only 0.78% even after a long period of 80 000 s. Our finding suggests that CoFe2O4 nanofibers with a multi-particle nanochain structure could serve as a new group of OER electrocatalysts with excellent performance.

引用

页码：5338 / 5343

页数：6

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