溶剂热法合成蜂巢状氧化镍及其电化学电容性能  

Solvothermal Synthesis and Electrochemical Capacitance Properties of Honeycomblike Nickel Oxide

作　　者：王兴磊[1] 何宽新[1] 张校刚[2] 米红宇[1] 罗建民[1] 

机构地区：[1]新疆大学应用化学研究所,乌鲁木齐830046 [2]南京航天航空大学材料科学与技术学院,南京210016

出　　处：《无机化学学报》2007年第9期1533-1537,共5页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金资助项目(No.20403014;20633040);江苏省自然科学基金(No.BK2006196)。

摘　　要：利用N,N-二甲基甲酰胺(DMF)为溶剂的溶剂热法制备了蜂巢状氧化镍,反应过程中DMF既做溶剂又做沉淀剂。研究了不同制备条件对NiO形貌及电化学性质的影响,并用X-射线衍射(XRD)、扫描电子显微镜(SEM)以及循环伏安(CV)技术进行了表征。结果表明,300℃热处理得到的氧化镍,10mA电流下单电极比电容达460F·g^(-1)。The honeycomblike nickel oxide was synthesized by the solvothermal method with N, N-dimethylformamide （DMF） as both solvent and precipitant in reaction. The effect of synthetic conditions on the morphology and electrochemical properties of NiO were investigated. The microstructure and electrochemical properties of NiO powders were characterized by X-ray diffraction （XRD）, scanning electronic microscopy （SEM） and cyclic voltammetry （CV）. The results showed that the NiO obtained after calcination at 300 ℃ exhibited good capacitive behavior. The specific capacitance of the material as a single electrode was up to 460 F·g^-1.

关 键 词：溶剂热 DMF 蜂巢状NiO 电化学电容器 

分 类 号：O614.813[理学—无机化学] TM912[理学—化学]