NiCo2O4 nanostructures with various morphologies as the high-performance electrocatalysts for H2O2 electroreduction and electrooxidation

被引：25

作者：

Xiao, Xue ^{[1
,3
]}

Yang, Fan ^{[1
,2
]}

Cheng, Kui ^{[1
]}

Wang, Xin ^{[1
]}

Yin, Jinling ^{[1
]}

Ye, Ke ^{[1
]}

Wang, Guiling ^{[1
]}

Cao, Dianxue ^{[1
]}

机构：

[1] Harbin Engn Univ, Coll Mat Sci & Chem Engn, Minist Educ, Key Lab Superlight Mat & Surface Technol, Harbin 150001, Peoples R China

[2] Northeast Agr Univ, Coll Sci, Harbin 150030, Peoples R China

[3] Heilongjiang Inst Technol, Coll Mat & Chem Engn, Harbin 150050, Peoples R China

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2014年 / 729卷

关键词：

Nickel cobaltite; Nanostructures; Hydrogen peroxide; Electroreduction; Electrooxidation; PEROXIDE FUEL-CELL; CARBON-FIBER CLOTH; HYDROGEN-PEROXIDE; DIRECT BOROHYDRIDE; PRUSSIAN BLUE; CO3O4; ELECTRODES; OXIDATION; CATHODE; REDUCTION;

D O I：

10.1016/j.jelechem.2014.07.010

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Ni foam supported-NiCo2O4 nanostructures with various morphologies are successfully prepared by a facile template-free method. The synthesis involves the electrodeposition of the bimetallic (Ni, Co) film on Ni foam support. The NiCo2O4 nanostructures are formed by immersing the bimetallic film in an oxalic acid solution, followed by a calcination progress. The control over NiCo2O4 nanostructures with different morphologies is achieved by adjusting the electrodeposition time and immersing time. The electrode is characterized by scanning electron microscopy, transmission electron microscopy and X-ray diffraction. H2O2 electrooxidation and electroreduction in KOH solution on the NiCo2O4 nanostructures are studied by cyclic voltammetry and chronoamperometry. Results show that NiCo2O4 nanostructures exhibit high performance and superior stability for both H2O2 electrooxidation and electroreduction, resulting from hierarchical porous structure inside their architectures. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：103 / 108

页数：6

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