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Preparation of Highly Conductive, Self‐Assembled Gold/Polyaniline Nanocables and Polyaniline Nanotubes
Author(s) -
Huang Kun,
Zhang Yuanjian,
Long Yunze,
Yuan Junhua,
Han Dongxue,
Wang Zhijuan,
Niu Li,
Chen Zhaojia
Publication year - 2006
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.200501527
Subject(s) - polyaniline , materials science , aniline , polyaniline nanofibers , chemical engineering , dopant , nanocellulose , sulfonic acid , monomer , conductive polymer , nanofiber , nanotechnology , polymer chemistry , polymerization , chemistry , doping , organic chemistry , polymer , composite material , cellulose , optoelectronics , engineering
One‐dimensional gold/polyaniline (Au/PANI‐CSA) coaxial nanocables with an average diameter of 50–60 nm and lengths of more than 1 μm were successfully synthesized by reacting aniline monomer with chlorauric acid (HAuCl 4 ) through a self‐assembly process in the presence of D ‐camphor‐10‐sulfonic acid (CSA), which acts as both a dopant and surfactant. It was found that the formation probability and the size of the Au/PANI‐CSA nanocables depends on the molar ratio of aniline to HAuCl 4 and the concentration of CSA, respectively. A synergistic growth mechanism was proposed to interpret the formation of the Au/PANI‐CSA nanocables. The directly measured conductivity of a single gold/polyaniline nanocable was found to be high (≈77.2 S cm −1 ). Hollow PANI‐CSA nanotubes, with an average diameter of 50–60 nm, were also obtained successfully by dissolving the Au nanowire core of the Au/PANI‐CSA nanocables.