新材料与新技术

SDS辅助制备聚苯胺纳米管及其电化学性能研究

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  • 兰州理工大学石油化工学院,兰州730050
朱院强(1995-),男,硕士研究生,主要从事超级电容器电极材料的研究,E-mail:1398384753@qq.com。

收稿日期: 2020-07-31

  修回日期: 2021-07-09

  网络出版日期: 2021-12-13

基金资助

国家自然科学基金(51503092和51663014)

SDS-assisted synthesis of polyaniline nano-tubular and its electrochemical performance

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  • School of Petrochemical Engineering,Lanzhou University of Technology,Lanzhou 730050

Received date: 2020-07-31

  Revised date: 2021-07-09

  Online published: 2021-12-13

摘要

采用化学氧化法,通过控制表面活性剂十二烷基硫酸钠(SDS)的用量,在室温下制备得到微观形貌各异的聚苯胺(PANI)电极材料,利用红外光谱、扫描电镜、透射电镜、比表面积等方法对其进行结构表征,研究了SDS添加量对PANI微观结构的影响,以及SDS作为软模板调节苯胺聚合成纳米管状结构的机理,同时测试了材料的电化学性能。结果表明:SDS添加量为0.03g时,得到多孔纳米管状结构的PANI。在1mol/L H2SO4电解液中,电流密度为1A/g时,比电容高达630F/g,经2000次充放电循环之后,电容保持率仍可达到74.5%。当电流密度从1A/g增加到10A/g时,其容量保持率仍可以达到71.7%。

本文引用格式

朱院强, 徐惠, 左莎莎, 范欣, 姜旭东, 苟国俊 . SDS辅助制备聚苯胺纳米管及其电化学性能研究[J]. 化工新型材料, 2021 , 49(11) : 128 -132 . DOI: 10.19817/j.cnki.issn 1006-3536.2021.11.027

Abstract

Nanostructure polyaniline (PANI) electrode materials were prepared by chemical oxidation polymerization of aniline assisted by controlling the amount of surfactant sodium dodecyl sulfate (SDS).The morphology and structure of PANI were characterized by FT-IR,SEM,TEM and BET.The effect of amount of SDS on the micromorphology of PANI was investigated,and the mechanisms of SDS as a soft template to adjust the polymerization of aniline into nano-tubular structure were evaluated.Moreover,the electrochemical properties of PANI were tested.The results showed that when the amount of SDS was 0.03g,PANI with porous nano-tubular structure was obtained.And its specific capacitance was up to 630F/g at a current density of 1A/g in 1mol/L H2SO4 electrolyte.After 2000 cycles,the specific capacitance retention rate can still reach 74.5%.The rate retention of 71.7% at current density of 1~10 A/g was achieved.

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