以管状二氧化锰(MnO2)为氧化剂和模板剂在酸水体系中化学氧化制备了聚苯胺(PANI)纳米管。采用能谱仪、扫描电镜、透射电镜、红外光谱、循环伏安、恒流充放电及交流阻抗谱等测试手段对其结构和电化学性能进行测试；研究不同苯胺单体(ANI)的用量对PANI结构和电化学性能的影响。结果表明,制备的聚苯胺为内径约90nm,外径约350nm,长约2μm的纳米管；在m(MnO2)∶m(ANI)=9∶25时,合成的 PANI 管状结构比较丰富,在1mol/L H2 SO4电解液中比电容达到473F/g。
Polyaniline nanotubes (PANI)were successfully prepared using tubular manganese dioxide as oxidant and template in acid water system.The structure was characterized by using energy dispersive X-ray spectrosco-py (EDX),scanning electron microscopy (SEM),transmission electron microscopy (TEM)and Fourier trans-formation infrared spectroscope (FT-IR);and the supercapacitive behaviors of the materials were investigated with cyclic voltammetry (CV),charge-discharge tests and electrochemical impedance spectroscopy (EIS),re-spectively.The effects of aniline (ANI)amount on the structure and electrochemical performance of prepared PANI were discussed in detail.The results indicate that the prepared PANI present nanotube morphology with inner diameters of about 90nm,outer diameters of about 350nm and lengths of about 2μm;when feed ratio of manganese dioxide (MnO2 )to ANI was changed from 9 to 25,a maximum specific capacitance (SC)of as-pre-pared PANI nanotubes of 473F/g could be achieved in 1mol/L aqueous H2 SO4 .
参考文献
| [1] | Huang JS;Sumpter BG;Meunier V .A universal model for nanoporous carbon supercapacitors applicable to diverse pore regimes, carbon materials, and electrolytes[J].Chemistry: A European journal,2008(22):6614-6626. |
| [2] | Hyeok P J;Myoun K J;Ok P O et al.Capacitance prop-erties of graphite/polypyrrole composite electrode pre-pared by chemical polymerization of pyrrole on graphite fiber[J].Journal of Power Sources,2002,105(01):20-25. |
| [3] | Amarnath Chellachamy A;Ho C J;Doyoung K et al.Electrochemical supercapacitor application of electroless surface polymerization of polyaniline nanostructures[J].Materials Chemistry and Physics,2009,113(01):14-17. |
| [4] | 方静,崔沐,张治安,赖延清,李劫.过渡金属盐掺杂聚苯胺材料及电容行为研究[J].功能材料,2011(01):171-174. |
| [5] | 刘亚飞,李作鹏,张海宁,曹鹏飞,张晓萍,邓友全.不同杂化离子对电聚合聚苯胺电容行为的影响[J].功能材料,2011(z1):152-155,167. |
| [6] | D. S. Patil;J. S. Shaikh;D. S. Dalavi .An Mn Doped Polyaniline Electrode for Electrochemical Supercapacitor[J].Journal of the Electrochemical Society,2011(6):A653-A657. |
| [7] | Wu, Q.;Xu, Y.;Yao, Z.;Liu, A.;Shi, G. .Supercapacitors based on flexible graphene/polyaniline nanofiber composite films[J].ACS nano,2010(4):1963-1970. |
| [8] | 孙敏强,朱忠泽,李星玮,王庚超.磺化碳纳米管改性聚苯胺复合材料的合成与超级电容特性[J].高分子学报,2011(06):639-644. |
| [9] | Xuemei GUO,Kun LUO,Nanlin SHI.Preparation and Characterization of Polyaniline Nanofibers by Template-free Method[J].材料科学技术学报（英文版）,2005(02):179-182. |
| [10] | Jyongsik Jang;Jungseok Ha;Sunhee Kim .Fabrication of Polyaniline Nanoparticles Using Microemulsion Polymerization[J].Macromolecular Research,2007(2):154-159. |
| [11] | Zhixiang Wei;Meixiang Wan;Tong Lin;Liming Dai .Polyaniline Nanotubes Doped with Sulfonated Carbon Nanotubes Made Via a Self-Assembly Process[J].Advanced Materials,2003(2):136-139. |
| [12] | Kanungo M.;Kumar A.;Contractor AQ. .Microtubule sensors and sensor array based on polyaniline synthesized in the presence of poly(styrene sulfonate)[J].Analytical chemistry,2003(21):5673-5679. |
| [13] | L. J. Pan;L. Pu;Y. Shi;S. Y. Song;Z. Xu;R. Zhang;Y. D. Zheng .Synthesis of Polyaniline Nanotubes with a Reactive Template of Manganese Oxide[J].Advanced Materials,2007(3):461-464. |
| [14] | Wang Lingren;Ran Fen;Tan Yongtao et al.Coral reef-like polyanaline nanotubes prepared by a reactive tem-plate of manganese oxide for supercapacitor electrode[J].Chinese Chemical Letters,2011,22:964-968. |
| [15] | 包建军,成煦,何其佳,张爱民.热处理过程中聚苯胺的结构变化[J].高分子材料科学与工程,2004(05):121-124. |
| [16] | Hangjun Ding;Meixiang Wan;Yen Wei .Controlling the Diameter of Poly aniline Nanofibers by Adjusting the Oxidant Redox Potential[J].Advanced Materials,2007(3):465-469. |
| [17] | Mazeikiene R;Malinauskas A .Electrochemical behaviour of polyaniline film polymerized by the use of a chemical oxidation step[J].Electrochimica Acta,1996,41(10):1587-1591. |
| [18] | K B K Teo;S-B Lee;M Chhowalla .Plasma enhanced chemical vapour deposition carbon nanotubes/nanofibres-how uniform do they grow?[J].Nanotechnology,2003(2):204-211. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%