通过原位聚合在低温条件下(-10℃)制备具有片状微结构的聚吡咯(PPy)/氧化石墨烯(GO)复合材料,利用傅里叶红外光谱仪(FT-IR),扫描电子显微镜(SEM)对复合材料进行结构表征的基础上,利用循环伏安(CV)、恒流充放电(GC)、电化学阻抗技术(EIS)测试复合材料的电化学性能.FT-IR 结果表明复合材料中 GO 与 PPy 存在相互作用;SEM 结果表明复合材料显示为亚微米片状结构形貌;CV、GC、EIS 电化学分析表明,与纯聚吡咯及氧化石墨烯相比,复合材料显示出优越的电容特性.当电流密度保持在1 A/g时,复合材料的比电容可达319 F/g,比 GO(9 F/g)和PPy(167 F/g)的比电容都要高,该复合材料可用作潜在的超级电容器电极材料.
Micro-sheet polypyrrole (PPy)/ graphene oxide (GO)composites were prepared by in situ polymeri-zation at ultra-low temperature (-10 ℃).On the basis of the structural characterization of the composites by Fourier-transform infrared spectroscopy (FT-IR)and scanning electron microscopy (SEM)tests,the electro-chemical performances of the composites were investigated by cyclic voltammetry (CV),galvostatic charge-dis-charge (GC)and electrochemical impedance technology (EIS).The FT-IR analysis indicated the presence of in-teractions between GO and PPy in the composites.SEM results showed that the composites provided a submi-cron-sheet structure.The composites showed a better capacitive behavior than both GO and PPy.The compos-ites had a higher specific capacitance of 31 9 F/g (current density= 1 A/g)than either composite constituent (10 F/g for GO and 1 67 F/g for PPy).The composites could be used as potential electrode material for superca-pacitors.
参考文献
[1] | Sharma RK;Rastogi AC;Desu SB .Pulse polymerized polypyrrole electrodes for high energy density electrochemical supercapacitor[J].Electrochemistry communications,2008(2):268-272. |
[2] | Bose, S.;Kim, N.H.;Kuila, T.;Lau, K.-T.;Lee, J.H. .Electrochemical performance of a graphene-polypyrrole nanocomposite as a supercapacitor electrode[J].Nanotechnology,2011(29):295202-1-295202-1. |
[3] | 胡婕,马嘉华,王丽娜,黄浩.电泳沉积制备LaMnO3/石墨烯薄膜及其光催化性能[J].硅酸盐学报,2014(03):390-396. |
[4] | Park, S;Ruoff, RS .Chemical methods for the production of graphenes[J].Nature nanotechnology,2009(4):217-224. |
[5] | He HY.;Forster M.;Lerf A.;Klinowski J. .A new structural model for graphite oxide[J].Chemical Physics Letters,1998(1/2):53-56. |
[6] | C. HONTORIA-LUCAS;A. J. LOPEZ-PEINADO;J. DE D. LOPEZ-GONZALEZ;M. L. ROJAS-CERVANTES;R. M. MARTIN-ARANDA .STUDY OF OXYGEN-CONTAINING GROUPS IN A SERIES OF GRAPHITE OXIDES: PHYSICAL AND CHEMICAL CHARACTERIZATION[J].Carbon: An International Journal Sponsored by the American Carbon Society,1995(11):1585-1592. |
[7] | Zhang, L.L.;Zhao, S.;Tian, X.N.;Zhao, X.S. .Layered graphene oxide nanostructures with sandwiched conducting polymers as supercapacitor electrodes[J].Langmuir: The ACS Journal of Surfaces and Colloids,2010(22):17624-17628. |
[8] | 王春晓,任鹏刚,刘蓬,谢利,张华,方长青.聚吡咯/石墨烯复合导电材料的制备及性能表征[J].功能材料,2012(16):2150-2152,2155. |
[9] | Yongqin Han;Yun Lu .Preparation and characterization of graphite oxide/polypyrrole composites[J].Carbon: An International Journal Sponsored by the American Carbon Society,2007(12):2394-2399. |
[10] | Characterization and electrical properties of conductive polymer/colloidal graphite oxide nanocomposites[J].Composites science and technology,2009(7/8):1231-1237. |
[11] | 韩永芹,丁兵,张校刚.氧化石墨/聚吡咯复合材料的制备及其电化学性质[J].科学通报,2011(23):1927-1933. |
[12] | Hummers W S;Offeman R E .Preparation of graphite oxide[J].Journal of the American Chemical Society,1958,80(06):1139. |
[13] | G.I. Titelman;V. Gelman;S. Bron .Characteristics and microstructure of aqueous colloidal dispersions of graphite oxide[J].Carbon: An International Journal Sponsored by the American Carbon Society,2005(3):641-649. |
[14] | Gyoujin Cho;Bing M.Fung;Daniel T.GlatzhoferDeparmtnet of Chemistry and Biochemistry The University of Oklahoma Norman Oklahoma 73019;Jae-Suk Lee;Yong-Gun Shul .Preparation and Characterization of Polypyrrole-Coated Nanosized Novel Ceramics[J].Langmuir: The ACS Journal of Surfaces and Colloids,2001(2):456-461. |
[15] | Liu Y C;Lin Y T .Strategy and characteristics of poly-pyrrole deposited on silver substrates with silver-contai-ning nanocomplexes[J].Journal of Physical Chemistry B,2003,107(41):11370-11375. |
[16] | W.W. Chiu;J. Travas-Sejdic;R.P. Cooney .Spectroscopic and conductivity studies of doping in chemically synthesized poly(3,4-ethylenedioxythiophene)[J].Synthetic Metals,2005(1):80-88. |
[17] | Zhang WX.;Wen XG.;Yang SH. .Synthesis and characterization of uniform arrays of copper sulfide nanorods coated with nanolayers of polypyrrole[J].Langmuir: The ACS Journal of Surfaces and Colloids,2003(10):4420-4426. |
[18] | Xinyu Zhang;Warren J. Goux;Sanjeev K. Manohar .Synthesis of Polyaniline Nanofibers by "Nanofiber Seeding"[J].Journal of the American Chemical Society,2004(14):4502-4503. |
- 下载量()
- 访问量()
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%