电化学2011，Vol.17Issue(2)：217-221,5.
介孔碳基钴镍氧化物的电化学电容性能
Electrochemical Capacitive Performance of Mesoporous Carbon Based Co-Ni Oxides
摘要
Abstract
By using defects on the surface of CMK-3 served as nucleation center,the Co0.25Ni0.75 oxide/C composite was successfully prepared through a simple chemical co-precipitation method. Characterization was carried out by using X-ray diffraction, BET and scanning electron microscopy. Results showed that a perfect mesoporous network of interconnected nanoflakes was obtained for Co0.25Ni0.75 oxide/C composites. This material was weakly crystallized, interconnected nanoflakes network structure and has a narrow mesoporous distribution at about 3 ～4 nm. The highly dispersed and loosely packed Co0.25Ni0.75 oxide/C composites possessed good electrochemical accessibility and fast diffusion rate of OH-. Cyclic voltammograms and charge-discharge curves suggested that the as-prepared Co0.25Ni0.75 oxide(92％ ) /C electrode is highly electrochemical activated and an admirable specific capacitance of as high as 1781 F/g could be obtained at current density of 5 mA/cm2.关键词
超级电容器/钴镍氧化物/交错纳米片网络Key words
supercapacitor/ cobalt-nickel oxide/ interconnected nanoflakes network分类
化学化工引用本文复制引用
杨贞胜,孔令斌,邓莉,罗永春,康龙..介孔碳基钴镍氧化物的电化学电容性能[J].电化学,2011,17(2):217-221,5.基金项目
国家自然科学基金(50602020),973计划前期研究专项(2007CB216408)和甘肃省高校基本科研业务费专项资金资助 （50602020）
