Nano-Au@PANI蛋黄空心结构电极材料的构筑及超级电容性能  

Construction of Nano-Au@PANI Yolk-shell Hollow Structure Electrode Material and Its Electrochemical Performance

作　　者：谭永涛 孔令斌[1,2] 康龙[1,2] 冉奋[1,2] TAN Yongtao;KONG Lingbin;KANG Long;RAN Fen(College of Materials Science and Engineering,Lanzhou University of Technology,Lanzhou 730050;State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals,Lanzhou University of Technology,Lanzhou 730050)

机构地区：[1]兰州理工大学材料科学与工程学院,兰州730050 [2]兰州理工大学省部共建有色金属先进加工与可再生利用国家重点实验室,兰州730050

出　　处：《材料导报》2018年第1期47-50,57,共5页Materials Reports

基　　金：国家自然科学基金(51203071;51363014;51463012);博士后科学基金(2014M552509;2015T81064);甘肃省自然科学基金(2015GS05123)

摘　　要：采用两步化学氧化法,通过控制氧化剂的扩散合成了Nano-Au@PANI复合材料。采用透射电镜对其形貌进行了表征,采用电化学工作站对其电化学性能进行了测试,并研究了反应时间对其电化学性能的影响。结果表明,合成的Nano-Au@PANI复合材料具有蛋黄空心结构,PANI外壳层的厚度随时间的延长而增加,其作为电极材料比容量出现了先增大后减小的趋势。当反应时间为12h时,其PANI外壳层的厚度约为21nm,比容量为79F·g^(-1)。The nano-Au@PANI was prepared via a two-step method of oxidative polymerization by controlling the diffusion of oxidizing agents.The morphology of nano-Au@PANI was characterized by TEM,and the performances of supercapacitor were measured by electrochemical work-station(CHI660E).Furthermore,the relationship of reaction time and the performances of supercapacitor were also studied.The results showed that the nano-Au@PANI composites possessed yolk-shell structure,and with extension of reaction time the specific capacitance first increased and then decreased.When the reaction time was 12 h,the shell thickness of PANI was about 21 nm,the specific capacitance was up to 79 F·g-1.

关 键 词：复合电极材料 金纳米颗粒 聚苯胺 超级电容器 

分 类 号：TB324[一般工业技术—材料科学与工程] TQ316.3[化学工程—高聚物工业]