森林与环境学报2018，Vol.38Issue(3)：257-264,8.DOI:10.13324/j.cnki.jfcf.2018.03.001
负载Ni(OH)2/NiOOH微球碳气凝胶的水热合成与储能应用
Hydrothermal synthesis and energy storage applications of carbon aerogels-supported Ni(OH)2/NiOOH microspheres
摘要
Abstract
For developing high-performance supercapacitor electrodes and extending the application area of carbon aerogels,a facile and fast hydrothermal approach was used to embed Ni(OH)2/NiOOH microspheres with a diameter of 2-4 μm into the three-dimensional carbon skeleton structure of CDCA.According to the scanning electron microscope(SEM)observations,the microsphere was formed by the different-direction aggregation and self-assembly of two-dimensional Ni(OH)2/NiOOH nanosheets with a width of 300-800 nm.The as-prepared Ni(OH)2/NiOOH/CDCA composite was mixed with acetylene black(conductive agent)and polytetrafluoroethylene(bonding agent)and then loaded onto a Ni foam.The mixture was pressed into a supercapacitor electrode.In a three-electrode mode,the area enclosed by the CV curve of this electrode was larger than that of the Ni foam-supported Ni(OH)2/NiOOH without carbon aerogels.Moreover,the electrode displayed a noticeable capacitance of 639 mF·cm-2at 1 mA·cm-2.Also,the electrode presented an excellent cycling stability with a 92.37％of capacitance retention after 5 000 cycles.关键词
纤维素/碳气凝胶/氢氧化镍/微球/水热合成/超级电容器Key words
cellulose/carbon aerogels/nickel hydroxide/microspheres/hydrothermal synthesis/supercapacitors分类
化学化工引用本文复制引用
李坚,焦月,万才超..负载Ni(OH)2/NiOOH微球碳气凝胶的水热合成与储能应用[J].森林与环境学报,2018,38(3):257-264,8.基金项目
国家自然科学基金项目(31470584) （31470584）
高等学校学科创新引智计划(111计划)(B08016). （111计划）
