SDS辅助制备聚苯胺纳米管及其电化学性能研究  

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

作　　者：朱院强 徐惠[1] 左莎莎 范欣 姜旭东 苟国俊[1] Zhu Yuanqiang;Xu Hui;Zuo Shasha;Fan Xin;Jiang Xudong;Gou Guojun(School of Petrochemical Engineering,Lanzhou University of Technology,Lanzhou 730050)

机构地区：[1]兰州理工大学石油化工学院,兰州730050

出　　处：《化工新型材料》2021年第11期128-132,135,共6页New Chemical Materials

基　　金：国家自然科学基金(51503092和51663014)。

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 H_(2)SO_(4)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%。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 0.03 g,PANI with porous nano-tubular structure was obtained.And its specific capacitance was up to 630 F/g at a current density of 1 A/g in 1 mol/L H_(2)SO_(4)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.

关 键 词：聚苯胺纳米管 十二烷基硫酸钠 电化学性能 循环稳定性 

分 类 号：O69[理学—化学]