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Vertically Oriented Silica Mesochannels as the Template for Electrodeposition of Polyaniline Nanostructures and Their Electrocatalytic and Electroanalytical Applications
Author(s) -
Ding Longhua,
Li Wanzhen,
Wang Qiaohong,
Sun Qinqin,
He Yayun,
Su Bin
Publication year - 2014
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201303807
Subject(s) - polyaniline , nanostructure , materials science , ascorbic acid , nanotechnology , mesoporous silica , substrate (aquarium) , electrode , polyaniline nanofibers , mesoporous material , chemical engineering , chemistry , catalysis , polymer , organic chemistry , composite material , oceanography , geology , engineering , polymerization , food science
Abstract A mesoporous silica film (MSF) with vertically oriented mesochannels on a conductive substrate serves as a hard‐template for electrodeposition of polyaniline (PANI). The PANI nanostructures thus prepared are orderly confined in silica mesochannels, eventually producing a robust hybrid film. The film displays a good electrocatalytic activity toward oxidation of ascorbic acid, and can be used for potentiometric pH sensing with a Nernstian response.