纳米Co(OH)_2/HY复合物的制备及其电化学电容性能  

Preparation and Electrochemical Capacitance Characteristics of Co(OH)_2/HY Nano-composite

作　　者：曹林[1] 梁彦瑜[1] 孔令斌[1] 力虎林[1] 

机构地区：[1]兰州大学化学化工学院,兰州730000

出　　处：《高等学校化学学报》2004年第5期945-947,共3页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金 (批准号 :60 1710 0 4)资助

摘　　要：A novel strategy, which is better-suited for preparing materials with a very microscopic structure, is described and the whisker-like composite of Co(OH) 2/HY was prepared by using this strategy. In addition, the mechanism by which the growth proceeds is not very rigorously worked out. Due to the high dispersed capability of HY towards to Co(OH) 2 resulting in loose whisker-like microstructure of Co(OH) 2, small channels become available for the diffusion of OH - electrolyte ions through all Co(OH) 2 thin layer. Consequentially, the prepared composite shows a very high specific capacitance (483 F/g) and utilization (93%) of effective electroactive composition of composite.A novel strategy, which is better-suited for preparing materials with a very microscopic structure, is described and the whisker-like composite of Co(OH) 2/HY was prepared by using this strategy. In addition, the mechanism by which the growth proceeds is not very rigorously worked out. Due to the high dispersed capability of HY towards to Co(OH) 2 resulting in loose whisker-like microstructure of Co(OH) 2, small channels become available for the diffusion of OH - electrolyte ions through all Co(OH) 2 thin layer. Consequentially, the prepared composite shows a very high specific capacitance (483 F/g) and utilization (93%) of effective electroactive composition of composite.

关 键 词：超级电容器 电化学电容性能 纳米氢氧化钴/HY复合物 制备 生长机理 

分 类 号：TM53[电气工程—电器]