网孔状NiO电极制备及其电容特性

doi:10.61558/2993-074X.2870

电化学（中英文） ›› 2011, Vol. 17 ›› Issue (4): 448-452. doi: 10.61558/2993-074X.2870

网孔状NiO电极制备及其电容特性

徐惠*, 彭振军, 郭东红, 李俊玲

兰州理工大学石油化工学院, 兰州 730050

收稿日期:2011-08-05 修回日期:2011-08-31 出版日期:2011-11-28 发布日期:2011-09-22
通讯作者: 徐惠 E-mail:xuhui@lut.cn
基金资助:
国家自然科学基金（51062011）资助

Preparation and Capacitance Characteristics of Nickel Oxide Electrode with Mesh-Like Structure

XU Hui*, PENG Zhen-Jun, GUO Dong-Hong, LI Jun-Ling

College of Petrochemical Technology， Lanzhou University of technology， Lanzhou 730050 ，China

Received:2011-08-05 Revised:2011-08-31 Published:2011-11-28 Online:2011-09-22
Contact: XU Hui E-mail:xuhui@lut.cn

摘要/Abstract

摘要： 以硫酸镍和尿素作原料，六偏磷酸钠为表面活性剂，由水热法制备前驱体，经400℃煅烧即得网孔状结构的NiO。XRD、SEM和恒流充放电分析测试样品的相结构、微观形貌和电容特性。结果表明：当镍尿素摩尔比为1:4时，140℃水热合成前驱体，经400℃煅烧得到的氧化镍性能较好。考察不同水热温度对合成产物电化学性能的影响，在20mA?cm-2下放电比电容为939F/g。

关键词: NiO, 网孔状结构, 电容特性

Abstract: The mesh-like structure of NiO electrode was obtained by first preparing the precursors via hydrothermal process using nickel sulfate and carbamide as reactants, sodium hexametaphosphate as a surfactant, and followed by calcination of the precursors at 400 ℃. The structure, morphology and capacitance characteristics of NiO electrode were characterized by XRD, SEM and constant current charge-discharge testing techniques. The effects of hydrothermal temperatures on the electrochemical properties of NiO electrode were investigated. The results showed that the better property of nickel oxide was obtained when the mole ratio of nickel to urea was 1:4 and the hydrothermal temperature was 140℃. The specific discharge capacitance of the NiO electrode was up to 939 F?g-1 at 20 mA?cm-2.

Key words: NiO, mesh-like structure, capacitance characteristics

中图分类号:

徐惠, 彭振军, 郭东红, 李俊玲. 网孔状NiO电极制备及其电容特性[J]. 电化学（中英文）, 2011, 17(4): 448-452.

XU Hui, PENG Zhen-Jun, GUO Dong-Hong, LI Jun-Ling. Preparation and Capacitance Characteristics of Nickel Oxide Electrode with Mesh-Like Structure[J]. Journal of Electrochemistry, 2011, 17(4): 448-452.

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https://electrochem.xmu.edu.cn/CN/Y2011/V17/I4/448

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网孔状NiO电极制备及其电容特性

Preparation and Capacitance Characteristics of Nickel Oxide Electrode with Mesh-Like Structure

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