Electropolymerization of Ni(salen) on carbon nanotube carrier as a capacitive material by pulse potentiostatic method  

作　　者：LI JianLing GAO Fei ZHANG YaKun KANG FeiYu WANG XinDong YE Feng YANG Jun 

机构地区：[1]State Key Laboratory of Advanced Metallurgy,University of Science and Technology Beijing,Beijing 100083,China [2]China Electric Power Research Institute,Beijing 100192,China [3]Department of Material Science and Engineering,Tsinghua University,Beijing 100084,China [4]State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100080,China

出　　处：《Science China Chemistry》2012年第7期1338-1344,共7页中国科学（化学英文版）

基　　金：supports of this work by Beijing Natural Science Foundation(2093039);Program for New Century Excellent Talents in University of Ministry of Education of China (NCET-09-0215);State Key Laboratory of Multiphase Complex Systems (MPCS-2011-D-08)

摘　　要：The composites of poly[Ni（salen）] and multi-walled carbon nanotube （MWCNT） were synthesized by pulse potentiostatic method. The composites were characterized by field emission scanning electron microscopy, Fourier transform infrared spectra, and electrochemical impedance spectroscopy. The wrapping of carbon nanotubes with poly[Ni（salen）] varied significantly with anodic pulse duration. Variance of structure of poly[Ni（salen）] caused by anodic pulse duration affected the ability of absorption to solvent molecules or solvated ions, which was indicated by v （C≡N） intensity. The ability to store/release charge of poly[Ni（salen）] caused by redox switching was evaluated in the form of low-frequency capacitance. Correlations of chargetransfer resistance/ionic diffusion resistance with potential and anodic pulse duration were investigated.The composites of poly[Ni(salen)] and multi-walled carbon nanotube(MWCNT) were synthesized by pulse potentiostatic method.The composites were characterized by field emission scanning electron microscopy,Fourier transform infrared spectra,and electrochemical impedance spectroscopy.The wrapping of carbon nanotubes with poly[Ni(salen)] varied significantly with anodic pulse duration.Variance of structure of poly[Ni(salen)] caused by anodic pulse duration affected the ability of absorption to solvent molecules or solvated ions,which was indicated by ν(C≡N) intensity.The ability to store/release charge of poly[Ni(salen)] caused by redox switching was evaluated in the form of low-frequency capacitance.Correlations of chargetransfer resistance/ionic diffusion resistance with potential and anodic pulse duration were investigated.

关 键 词：poly[Ni（salen）] carbon nanotubes potential pulse electrochemical impedance spectroscopy 

分 类 号：O657.1[理学—分析化学] TB383[理学—化学]