NiO的热分解制备及其电化学电容性质  

Pyrolysis Preparation of Nickel Oxide and Its Electrochemical Capacitance

作　　者：章罗江[1] 高博[1] 张校刚[1] 

机构地区：[1]南京航空航天大学材料科学与技术学院,南京210016

出　　处：《无机材料学报》2011年第4期398-402,共5页Journal of Inorganic Materials

基　　金：国家重点基础研究发展计划(2007CB209703);国家自然科学基金(20633040;20873064)~~

摘　　要：以亚氨基二乙酸(IDA)为配位剂与Ni2+配位,经300℃热处理得到NiO.XRD、FT-IR、SEM以及TG研究表明,生成的配合物在热处理时首先生成单质,后随温度升高逐渐转化为纳米颗粒与纳米片结合的氧化物;循环伏安、恒电流充放电及循环寿命电化学测试表明,所得NiO电极在6 mol/L KOH电解液中具有较好的电化学电容特性和循环稳定性,1 A/g电流密度下的单电极比容量可达355.8 F/g.NiO was successfully synthesized by complexing of iminodiacetic acid（IDA） and Ni2＋,and then calcined in air at 300℃.XRD,FT-IR,SEM and TG tests were applied to investigate the structure,morphology and the formation mechanism of the as-synthesized NiO.The results showed that the obtained complex firstly turned into elementary substance under pyrolysis and then changed to oxide consisting of nanoparticles and nano-flakes with increase of calcination temperature.Electrochemical properties of the NiO were elucidated by cyclic voltammograms,galvanostatic charge-discharge in 6 mol/L KOH electrolyte.Electrochemical data analysis demonstrated that the as-prepared NiO electrode had a good capacitive behavior and cyclability due to its unique structure and possessed a specific capacitance of 355.8 F/g at a current density of 1 A/g.

关 键 词：配位 热分解 NIO 电化学电容器 

分 类 号：O646[理学—物理化学]