Electrodeposited and then acetate-processed Ni(OH) 2 /NiOOH composites for enhanced electrocatalytic oxidation of urea

Micro & nano letters

article

Li Hong Qian¹  Xiao Cai Liang¹  Hua lan Zhou¹ 

[1] University of Shanghai for Science and Technology

关键词: nanofabrication;    voltammetry (chemical analysis);    electrodeposition;    electrochemical electrodes;    oxidation;    nickel compounds;    scanning electron microscopy;    catalysis;    nanoparticles;    electrochemical impedance spectroscopy;    organic compounds;    nanocomposites;    surface chemistry;    catalysts;    urea;    glassy carbon electrode;    electrode materials;    acetate solution;    sedimentary cycles;    soaking liquid;    soaking time;    alkaline solution;    electrodeposition;    electrocatalytic oxidation reaction;    aqueous solution;    Ni(OH)2-NiOOH nanoparticles;    GCE;    electrochemical properties;    cyclic voltammetry;    Tafel curve;    EIS;    nickel hydroxide-oxyhydroxide acetate;    electrochemical impedance spectroscopy;    stabilisation;    amperometric i–t curve technique;    acetate-processed Ni(OH)2-NiOOH nanocomposites;    Ni(OH)2-NiOOH;    Ni(OH)2-NiOOH;    C;   

DOI  :  10.1049/mnl.2018.5477

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

The Ni(OH) 2 /NiOOH nanoparticles (NPs) electrodeposited on a glassy carbon electrode (GCE) in Ni(NO 3 ) 2 and NH 3 ·H 2 O aqueous solution for the electrode materials. Then the nickel hydroxide/oxyhydroxide acetate was formed in acetate solution. The effects of deposition conditions such as the concentration of Ni(NO 3 ) 2 solution, the number of sedimentary cycles, the concentration of acetate in the soaking liquid and the soaking time are discussed in detail. The electrochemical properties of the material have been investigated by cyclic voltammetry, Tafel curve, EIS and amperometric i–t curve techniques. The result displays excellent electrocatalytic activity towards the electrocatalytic oxidation of urea in alkaline solution. Furthermore, the modified electrode for oxidation reaction has the advantages of simple preparation, good electrochemical properties and stabilisation.

【 授权许可】

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