标题：Electropolymerization of PEDOT on CNTs conductive network assembled at water/oil interface作者：Gao, Lili; Mao, Xuhui; Zhu, Hua; Xiao, Wei; Gan, Fuxing; Wang, Dihua

来源出版物：ELECTROCHIMICA ACTA 卷：136 页：97-104 DOI：10.1016/j.electacta.2014.05.053 出版年：AUG 1 2014

摘要：We demonstrate an interfacial electrochemical process for the preparation of composite film of poly(3,4-ethylenedioxythiophene) (PEDOT) and carbon nanotubes (CNTs) at a water/oil (w/o) interface. The 3,4-ethylenedioxythiophene (EDOT) monomer and lithium perchlorate electrolyte were supplied from the oil phase (dichloromethane) and water phase, respectively. Firstly, acid-oxidized carbon nanotubes were assembled at the w/o interface with the assistance of a trace dosage of cationic surfactant, forming a CNTs network. And then the CNTs network acted as a "working electrode" and "reinforcement bars" for the electropolymerization of PEDOT, resulting in the production of PEDOT@CNTs composite film. Higher CNTs areal density (mu g/mm(2) CNTs) caused a faster radial growth of PEDOT at the CNTs network, namely a faster growth of "apparent area" of the composite film. The current-time curves of the electropolymerization demonstrated that there was an optimal areal density of CNTs network (0.40 mu g/mm(2)) to achieve the largest amount of polymerized PEDOT. These observations suggested that the assembled CNTs network and the formed PEDOT@CNTs composite film not only functioned as an electrical conductor for the electrochemical process, but also affected the mass transfer of the reactants. The prepared PEDOT@CNTs composite film showed heterogeneous structures with a capacitance of 0.148 F/C. The pre-assembled nano-particles network involved liquid-liquid interfacial eletropolymerization may be developed for the preparation of a series of conductive polymer@nanoparticle composite film.

入藏号：WOS:000340320800013

文献类型：Article

语种：English

作者关键词：liquid-liquid interface, electropolymerization, composite, PEDOT film, carbon nanotube

扩展关键词：WALLED CARBON NANOTUBES; 3-PHASE JUNCTION; COMPOSITE FILMS; POLYMER; POLY(3,4-ETHYLENEDIOXYTHIOPHENE); POLYANILINE; FABRICATION; ELECTRODEPOSITION; SUPERCAPACITORS; CAPACITANCE

通讯作者地址：Mao, Xuhui; Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430072, Peoples R China.

电子邮件地址：clab@whu.edu.cn; wangdh@whu.edu.cn

地址：

[Gao, Lili; Mao, Xuhui; Zhu, Hua; Xiao, Wei; Gan, Fuxing; Wang, Dihua] Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430072, Peoples R China.

[Gao, Lili] Taiyuan Univ Technol, Sch Environm Sci & Engn, Taiyuan 030024, Peoples R China.

研究方向：Electrochemistry

ISSN：0013-4686