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Preparation and Electrochemical Performance of Composite Electrode Material of Molecular Sieve Coated with Graphene
Zhao Xiao-Chan1,2; Fang Yan1; Fang Chun-Hui1; Zhou Yong-Quan1; Ge Hai-Wen1; Zhu Fa-Yan1
2017-04-01
发表期刊JOURNAL OF INORGANIC MATERIALS
卷号32期号:4页码:386-392
文章类型Article
摘要A 3D composite electrode was prepared by ultrasonic dispersion of a suspension mixed proportionally with 4A molecular sieve (4A) and graphene oxide gel (GO). The structure, morphology and electrochemical property of the 4A/reduced graphene oxide (RGO) composite were investigated by X-ray diffraction, Raman spectra, pore analysis, scanning electron microscope (SEM) and electrochemical measurements. The result shows that 4A is firmly adhered on the surface of RGO sheets, which can effectively avoid the stacking of RGO sheets. The RGO sheets link with each other to form a 3D electric conductive network in which can increase the electrical conductivity of the composite. The specific capacitance of 4A/RGO composite can reach 450 F/g at current density of 4 A/g when the mass ratio of graphene oxide and 4A is 1:6. Furthermore, the specific capacitance of 4A/RGO remains at 85.7% after 800 cycles under the same current density. Therefore these results indicate that this new composite possesses good rate capability and cycle stability and its supercapacitive performance is better than that of pure RGO or 4A. The excellent performance of the 4A/RGO composite can be attributed to the synergy between RGO and 4A.
关键词3d Composite 4a Molecular Seive Graphene Supercapacitor Synergy
WOS标题词Science & Technology ; Technology
关键词[WOS]OXIDE COMPOSITE ; ENERGY-STORAGE ; CARBON ; SUPERCAPACITORS ; CAPACITANCE
收录类别SCI
语种英语
WOS研究方向Materials Science
WOS类目Materials Science, Ceramics
WOS记录号WOS:000400225900008
引用统计
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/6234
专题青海盐湖研究所知识仓储
盐湖资源与化学实验室
作者单位1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Salt Lake Resources & Chem, Xining 810008, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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GB/T 7714
Zhao Xiao-Chan,Fang Yan,Fang Chun-Hui,et al. Preparation and Electrochemical Performance of Composite Electrode Material of Molecular Sieve Coated with Graphene[J]. JOURNAL OF INORGANIC MATERIALS,2017,32(4):386-392.
APA Zhao Xiao-Chan,Fang Yan,Fang Chun-Hui,Zhou Yong-Quan,Ge Hai-Wen,&Zhu Fa-Yan.(2017).Preparation and Electrochemical Performance of Composite Electrode Material of Molecular Sieve Coated with Graphene.JOURNAL OF INORGANIC MATERIALS,32(4),386-392.
MLA Zhao Xiao-Chan,et al."Preparation and Electrochemical Performance of Composite Electrode Material of Molecular Sieve Coated with Graphene".JOURNAL OF INORGANIC MATERIALS 32.4(2017):386-392.
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