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Template‐free electrochemical synthesis and electrochemical supercapacitors application of polyaniline nanobuds
Author(s) -
Shaikh ShoyebMohamad F.,
Lim JiYeon,
Mane Rajaram S.,
Zate Manohar K.,
Han SungHwan,
Joo OhShim
Publication year - 2012
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.38557
Subject(s) - polyaniline , materials science , cyclic voltammetry , electrochromism , supercapacitor , electrochemistry , horizontal scan rate , substrate (aquarium) , electrode , indium tin oxide , conductive polymer , scanning electron microscope , chemical engineering , electrolyte , supporting electrolyte , capacitance , polymer chemistry , polymerization , nanotechnology , composite material , chemistry , thin film , polymer , oceanography , engineering , geology
One‐step and template‐free synthesis of polyaniline nanobuds (PANI NBs), synthesized using anodic electrochemical polymerization method, is reported at room temperature onto a conducting indium‐tin‐oxide glass substrate. The PANI NBs are characterized for their structural, morphological, and electrochromic properties. Scanning electron microscopy image reveals NBs type architecture, perpendicular to the substrate surface. These NBs are broader at their bottoms and narrower at the tops. Individual NB has confirmed 30 nm top diameter and 100–200 nm length. Electrochemical supercapacitive behavior of the PANI NBs electrode is investigated by measuring cyclic voltammetry curves. Moderate specific capacitance of 128 F/g is achieved in the potential range of −0.2 to 1.0 V at 10 mV/s sweep rate in 0.5 M H 2 SO 4 electrolyte. Influence of inner and outer charges on a resultant specific capacitance is also investigated. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013