介孔Al_2O_3的制备与改性及其电化学性能测试  

Study on Preparation and Modification of Mesoporous Al_2O_3 and Its Electrochemical Performance

作　　者：张秀华[1,2] 欧阳清海 张著森 郭玉林[1] ZHANG Xiu-hua;OUYANG Qing-hai;ZHANG Zhu-sen;GUO Yu-lin(Longyan University,Fujian Longyan 364012;Fujian Provincial Key Laboratory of Clean Energy Materials,Fujian Longyan 364012,China)

机构地区：[1]龙岩学院,福建龙岩364012 [2]福建省清洁能源材料重点实验室,福建龙岩364012

出　　处：《广州化工》2018年第7期48-50,共3页GuangZhou Chemical Industry

基　　金：福建省龙岩学院校立服务海西项目"改性活性炭复合材料制备超级电容器电极及其性能研究"(LQ2013021)

摘　　要：采用自制的BiOI对沉淀溶剂法制备出来的介孔Al_2O_3进行改性,并制成不同配比的复合电极材料。通过X射线衍射(XRD)对材料进行结构表征,采用循环伏安及恒流充放电等方法探究不同电极片的电化学性能。通过空白组与改性组的对比实验,可知加入BiOI改性后,电极片的电化学性能有一定程度的提升,改性后比电容可达171.9 F/g,是单纯介孔Al_2O_3电极的2.14倍;其中改性组Al_2O_3∶BiOI=1∶0.66(质量比)性能较好。The mesoporous alumina was prepared by solvent-precipitation method,and then modified by self-made BiOI powder.The composite electrode materials were prepared by different proportions of Al2O3 and BiOI.The structure of the pure Al2O3 and prepared BiOI were characterized by X-ray powder diffractometer(XRD),and the electrochemical properties of different electrodes were carried out by cyclic voltammetry,constant current charging methods.The results indicated that the electrochemical performance was clearly improved by the adding of BiOI.The specific capacitance of the modified electrode could reach 171.9 F/g,2.14 times of the pure component.The modified group of Al2O3:BiOI=1:0.66(mass ratio)performed the best behavior of all the test groups.

关 键 词：介孔Al2O3 BiOI 改性 电极片 电化学性能 

分 类 号：O646[理学—物理化学]