制备了羧基化石墨烯基聚吡咯复合物(CG/ppy)修饰电极,用循环伏安法和交流阻抗法研究了修饰电极的电化学行为,并对修饰电极进行了恒流充放电以及循环稳定性测试.实验结果表明,CG/ppy显著提高了玻碳电极在电解液中的电流响应,降低了玻碳电极在电解液中的电阻,修饰电极的比电容可达584 F/g,且经过1000次循环后比电容仍保持初始值的81%.首次将羧基化石墨烯基聚吡咯应用于电化学领域,证实了CG/ppy修饰电极在该领域中有潜在的应用价值.
参考文献
[1] | Tarascon J M,Armand M.Issues and Challenges Facing Rechargeable Lithium Batteries[J].Nature,2001,414:359-367. |
[2] | Armand M,Tarascon J M.Building Better Batteries[J].Nature,2008,451:652-657. |
[3] | Kang B,Ceder G.Battery Materials for Ultrafast Charging and Discharging[J].Nature,2009,458:190-193. |
[4] | Chen D,Tang L H,Li J H.Graphene-Based Materials in Electrochemistry[J].Chem Soc Rev,2010,39:3157-3180. |
[5] | Wen Z H,Li J H.Hierarchically Structured Carbon Nanocomposites as Electrode Materials for Electrochemical Energy Storage,Conversion and Biosensor Systems[J].J Mater Chem,2009,19:8707-8713. |
[6] | Xiao L,Wen Z H,Ci S Q,et al.Carbon/Iron-Based Nanorod Catalysts for Hydrogen Production in Microbial Electrolysis Cells[J].Nano Energy,2012,1(2):195-220. |
[7] | Yu A P,Roes I,Davies A,et al.Ultrathin,Transparent,and Flexible Graphene Films for Supercapacitor Application[J].Appl Phys Lett,2010,96(25):253105-253108. |
[8] | Geim A K,Novoselovks.The Rise of Graphene[J].Nat Mater,2007,6:183-191. |
[9] | Williams J R,DiCarlo L,Marcus C M.Quantum Hall Effect in a Gate-Controlled p-n Junction of Graphene[J].Science,2007,317 (5838):638-641. |
[10] | Service R F.Carbon Sheets an Atom Thick Give Rise to Graphene Dreams[J].Science,2009,324(5929):875-877. |
[11] | Lerf A,He H,Forster M.Structure of Graphite Oxide Revisited[J].J Phys Chem B,1998,102(23):4477-4482. |
[12] | Szabo T,Tombacz E,Illes E.Enhanced Acidity and pH-Dependent Surface Charge Characterization of Successively Oxidized Graphite Oxides[J].Carbon,2006,44(3):537-545. |
[13] | Nishide H,Oyaizu K.Materials Science-Toward Flexible Batteries[J].Science,2008,319:737-738. |
[14] | Lakard B,Segut O,Lakard S.Potentiometric Miniaturized pH Sensors Based on Polypyrrole Films[J].Sens Actuators B,2007,122(1):101-108. |
[15] | Sharma R K,Rastogi A C,Desu S B.Pulse Polymerized Polypyrrole Electrodes for High Energy Density Electrochemical Supercapacitor[J].Electrochem Commun,2008,10 (2):268-272. |
[16] | Huang L Y,Hou W B,Liu Z P.Polypyrrole-Coated Styrene-Butyl Acrylate Copolymer Composite Particles with Tunable Conductivity[J].Chinese Sci Bull,2005,50(10):971-975. |
[17] | Li F,Shi J J,Qin X.Synthesis and Supercapacitor Characteristics of PANI/CNTs Composites[J].Chinese Sci Bull,2010,55(11):1100-1106. |
[18] | Wang X X,Yang T,Jiao K.Controllable Fabrication of Au Micro/Nanostructures on Self-Doped Polyaniline Nanofibers via Electrochemical Deposition and Its Application for DNA Immobilization[J].Chinese Sci Bull,2010,55 (36):4125-4131. |
[19] | Li Y F,Qian R Y.On the Nature of Redox Processes in the Cyclic Voltammery of Polypyrrole Nitrate in Aqueous Solutions[J].J Electroanal Chem,1993,362(1/2):267-272. |
[20] | Yang C,Liu P.Polypyrrole/Conductive Mica Composites:Preparation,Characterization,and Application in Supercapacitor[J].Synth Met,2010,160(7/8):768-773. |
[21] | Wang J,Xu Y L,Chen X.Capacitance Properties of Single Wall Carbon Nanotube/Polypyrrole Composite Films[J].Sci Technol,2007,67 (14):2981-2985. |
[22] | Dione G,Dieng M M,Aaron J J,et al.New Composite Electrodes Made of Polypyrrole and Graphite:Construction,Optimization and Characterization[J].Power Sources,2007,170 (2):441-449. |
[23] | Li D,Muller M B,Gilje S,et al.Processable Aqueous Dispersions of Graphene Nanosheets[J].Nat Nanotechnol,2008,3:101-105. |
[24] | Li X L,Zhang G Y,Bai X D,et al.Highly Conducting Graphene Sheets and Langmuir-Blodgett Films[J].Nat Nanotechnol,2008,3:538-542. |
[25] | Zhang L L,Zhao S Y,Xiao N T.Layered Graphene Oxide Nanostructures with Sandwiched Conducting Polymers as Supercapacitor Electrodes[J].Langmuir,2010,26 (22):17624-17628. |
[26] | AN Haoyuan,REN Li,WANG Lixin.Study on Synthesize and Conductivity of Polypyrrole and Its Composites[J].Funct Mater,2004,35:1151-1153 (in Chinese).安灏源,任丽,王立新.聚吡咯及其复合材料的合成与导电性能研究[J].功能材料,2004,35:1151-1153. |
[27] | ZHANG Renyi,ZHANG Xiaoyan,FAN Huajun,et al.Progress in Supercapacitors Based on Carbon Nanotubes[J].Chinese J Appl Chem,2011,28(5):489-499 (in Chinese).章仁毅,张小燕,樊华军,等.基于碳纳米管的超级电容器研究进展[J].应用化学,2011,28(5):489-499. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%