新型复合盐Co_(0.8)Ni_(0.7)(OH)SeO_3的简易合成及电容特性（英文）  

Facile synthesis of new selenite Co_(0.8)Ni_(0.7)(OH)SeO_3 and its capacitance performance

作　　者：殷海霞 牛和林[1] 张胜义[1] YIN Haixia;NIU Helin;ZHANG Shengyi(College of Chemistry and Chemical Engineering,Anhui University,Hefei 230601,China)

机构地区：[1]安徽大学化学化工学院,安徽合肥230601

出　　处：《安徽大学学报（自然科学版）》2018年第6期96-108,共13页Journal of Anhui University(Natural Science Edition)

基　　金：Supported by the National Natural Science Foundation of China(21275006,21471001)

摘　　要：为了制备超级电容器电极材料,通过简便易行的化学方法合成一种新型的亚硒酸复合盐Co0.8Ni0.7-(OH)SeO3.采用多种测试技术详细表征了所得产物的结构和形貌,利用电化学阻抗谱及循环伏安法测试了产物的阻抗及电化学性质.充放电实验结果表明,由于电活性成分Co(II)、Ni(II)和Se(IV)的协同效应,所得亚硒酸复合盐Co0.8Ni0.7(OH)SeO3表现出高达1776F·g-1的比电容,并且具有很好的充放电循环稳定性.Aiming to prepare supercapacitor electrode materials,a new selenite Co0.8Ni0.7-(OH)SeO3 was synthesized via a facile chemical approach.The morphology and composition of the products as-obtained were characterized by various test techniques,in detail.In addition,the impedance and electrochemical property of the products were studied by electrochemical impedance spectroscopy and cyclic voltammetry,respectively.Significantly,the charge-discharge test results showed that the Co0.8Ni0.7(OH)SeO3 exhibited high specific capacitance(1 776 F·g^-1)and excellent cycling stability,due to the synergistic effect of Co(Ⅱ),Ni(Ⅱ)and Se(Ⅳ)electroactive components.

关 键 词：亚硒酸盐 钴 镍 合成 电容 

分 类 号：O614[理学—无机化学]