块状碳/氧化镍复合物的合成及电容特征  

Synthesis of Monolithic Carbon/Nickel Oxide Composite Electrode Material and Cyclic Voltammetry Characteristics

作　　者：郭天瑛[1] 朱经纬[1] 宋谋道[1] 张邦华[1] 

机构地区：[1]南开大学高分子化学研究所功能高分子材料教育部重点实验室南开大学-天津大学联合研究院,天津300071

出　　处：《电化学》2006年第4期394-397,共4页Journal of Electrochemistry

基　　金：教育部南开大学-天津大学科技合作基金(科技司[2001]163号)资助

摘　　要：应用离子交换法将N i2+离子引入酚醛凝胶并碳化,制备出块状的碳/氧化镍(C/N iO)复合物材料.原子吸收光谱(AAS)、X射线衍射(XRD)和循环伏安测试(CV)表明,样品中引入的N i含量可以达到5.9%(by m ass),其存在形式主要是N iO,伴有少量未被氧化的金属N i,比电容和电容性能以N i含量为4.4%的表现最佳.Monolithic carbon/nickel oxide composite materials were synthesized by carbonization of phenol formaldehyde gels that were ion-exchanged with Ni^2＋. Atomic absorption spectroscopy and powder X-ray diffraction technique were used to characterize the chemical composition and physical structure of the materials. The nickel dope amount for this method can reach 5.9 % （by mass）. Subsequent cyclic voltammetry experiments indicate that the materials exhibit best capacitive performance at the nickel content of 4.4 %.

关 键 词：超级电容器 电极 循环伏安 比电容 

分 类 号：TM53[电气工程—电器]