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采用NaOH一步炭化-活化聚偏二氯乙烯(PVDC)简便制备出高比表面积、层次孔结构炭材料.该炭材料具有发达的微孔-中孔-大孔的层次孔结构,其比表面达到2 815 m2·g-1.独特的微结构使其在无机和有机电解液中都表现出高的比电容和优异的大电流性能.其在6 mol·L-1KOH电解液中以0.05A·g-1电流充放电测得的比电容高达376F·g-1,电流密度增大到50A·g-1比电容还保持215 F·g-1.在有机电解液1 mol·L-1Et4NBF4/AN中的比电容也达到170 F· g-1(电流密度0.05A·g-1),电流密度增大到20A·g-1比容量还保持124F·g-1.

参考文献

[1] Yunpu Zhai;Yuqian Dou;Dongyuan Zhao;Pasquale F. Fulvio;Richard T. Mayes;Sheng Dai .Carbon Materials for Chemical Capacitive Energy Storage[J].Advanced Materials,2011(42):4828-4850.
[2] Xu B;Wu F;Chen RJ;Cao GP;Chen S;Zhou ZM;Yang YS .Highly mesoporous and high surface area carbon: A high capacitance electrode material for EDLCs with various electrolytes[J].Electrochemistry communications,2008(5):795-797.
[3] Li Li Zhang;X. S. Zhao .Carbon-based materials as supercapacitor electrodes[J].Chemical Society Reviews,2009(9):2520-2531.
[4] WANG D W;LI F;LIU M et al.A 3D aperiodic hierarchical porous graphitic carbon for high rate electrochemical capacitive energy storage[J].Angewandte Chemie International Edition,2008,47:373-376.
[5] Qiang Li;Rongrong Jiang;Yuqian Dou .Synthesis of mesoporous carbon spheres with a hierarchical pore structure for the electrochemical double-layer capacitor[J].Carbon: An International Journal Sponsored by the American Carbon Society,2011(4):1248-1257.
[6] Kaisheng Xia;Qiuming Gao;Jinhua Jiang .Hierarchical porous carbons with controlled micropores and mesopores for supercapacitor electrode materials[J].Carbon: An International Journal Sponsored by the American Carbon Society,2008(13):1718-1726.
[7] Joanna Gorka;Mietefe Jaroniec .Hierarchically porous phenolic resin-based carbons obtained by block copolymer-colloidal silica templating and post-synthesis activation with carbon dioxide and water vapor[J].Carbon: An International Journal Sponsored by the American Carbon Society,2011(1):154-160.
[8] Yingying Lv;Fan Zhang;Yuqian Dou .A comprehensive study on KOH activation of ordered mesoporous carbons and their supercapacitor application[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,2012(1):93-99.
[9] LIU H J;WANG J;WANG C X et al.Ordered hierarchical mesoporous/microporous carbon derived from mesoporous Titanium-carbide/carbon composites and its electrochemical performance in supercapacitor[J].Adv Energy Mater,2011,1:1101-1108.
[10] M. Endo;Y.J. Kim;T. Takeda .Poly(vinylidene chloride)-Based Carbon as an Electrode Material for High Power Capacitors with an Aqueous Electrolyte[J].Journal of the Electrochemical Society,2001(10):A1135-A1140.
[11] Xu B;Wu F;Chen S;Cao GP;Zhou ZM .A simple method for preparing porous carbon by PVDC pyrolysis[J].Colloids and Surfaces, A. Physicochemical and Engineering Aspects,2008(1/3):85-88.
[12] Bin Xu;Feng Wu;Shi Chen;Zhiming Zhou;Gaoping Cao;Yusheng Yang .High-capacitance carbon electrode prepared by PVDC carbonization for aqueous EDLCs[J].Electrochimica Acta,2009(8):2185-2189.
[13] Activated carbon prepared from PVDC by NaOH activation as electrode materials for high performance EDLCs with non-aqueous electrolyte[J].International journal of hydrogen energy,2010(2):632.
[14] Andrew Burke .R&D considerations for the performance and application of electrochemical capacitors[J].Electrochimica Acta,2007(3):1083-1091.
[15] Li Zhang;Gaoquan Shi .Preparation of Highly Conductive Graphene Hydrogels for Fabricating Supercapacitors with High Rate Capability[J].The journal of physical chemistry, C. Nanomaterials and interfaces,2011(34):17206-17212.
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