个人信息Personal Information
副教授
硕士生导师
性别:男
毕业院校:武汉大学
学位:博士
所在单位:化学学院
学科:无机化学. 材料物理与化学
办公地点:化学楼431
联系方式:13654946624
电子邮箱:yfzhang@dlut.edu.cn
Synthesis of amorphous MnSiO3/graphene oxide with excellent electrochemical performance as supercapacitor electrode
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论文类型:期刊论文
发表时间:2019-02-05
发表刊物:COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
收录刊物:SCIE、Scopus
卷号:562
页面范围:93-100
ISSN号:0927-7757
关键字:MnSiO3; Amorphous materials; Graphene oxide (GO); Composites; Supercapacitor; Electrochemical property
摘要:Manganese silicate/graphene oxide (MnSiO3/GO) composite was successfully synthesized using GO, manganese chloride and sodium silicate through a facile precipitation method. The results show MnSiO3 nanoparticles are closely dispersed on GO sheets, suggesting the formation of a united composite. This composite exhibits a large specific surface area of 161 m(2) g(-1) and a pore volume of 0.8728 cm(3) g(-1). MnSiO3/GO composite displays high electrical conductivity and fast ion and electron transport, which can improve the electrochemical performance of MnSiO3. To be specific, MnSiO3/GO composite delivers the specific capacitance as high as 262.5 F g(-1) at 0.5 A g(-1) in 1 M Na2SO4 electrolyte, which is higher than that of MnSiO3 (168.8 F g(-1)) and GO (4.6 F g(-1)). This finding proves that MnSiO3/GO composite can be considered as a promising candidate material applied to high-performance energy storage device.
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