摘要
基于高锰酸钾和5-氨基四唑之间的氧化还原反应,采用常压加热法制备了二氧化锰材料。应用X-射线衍射、扫描电镜和透射电镜技术对所得材料的结构和形貌进行表征,结果表明,所得材料具有层状结构,为纳米片组成的颗粒。电化学测试显示,制备材料表现出优良的电容特性。当电流密度为0.50A/g时,比电容为196F/g。不同扫速下的循环寿命测试结果证明制备材料具有优异的循环稳定性。
Manganese dioxide was prepared based on the redox between KMnO4 and 5- aminotetrazole at 65＇C under ambient pressure. The obtained material was characterized by X-ray diffraction, scanning electron microscopy and transmission electron microscopy. Results showed that the product was birnessite-type layered manganese dioxide which consisted of particles making up of nanosheets. Electrochemical tests indicated that the prepared material exhibited good capacitive behavior. And the specific capacitance was 196 F/g when the current density was 0. 50A/g. Moreover, the prepared material showed excellent cycle stability at different scan rates.
出处
《光谱实验室》
CAS
2013年第3期1059-1062,共4页
Chinese Journal of Spectroscopy Laboratory
基金
陕西省教育厅资助项目(11JK0577)
陕西省分析化学重点学科经费资助
关键词
层状二氧化锰
制备
电极材料
电容
Layered Manganese Dioxide
Preparatioh
Electrode Material ~ Capacitance
作者简介
朱刚（1980-），男，西安市人，讲师，硕士，主要从事无机纳米材料和混金属配合物的研究工作。联系人，手机：（0）15349228868；E—mail：zg一503a@163．com
