TY - JOUR
T1 - Covalently bonded polyaniline-TiO2 hybrids
T2 - A facile approach to highly stable anodic electrochromic materials with low oxidation potentials
AU - Xiong, Shanxin
AU - Phua, Si Lei
AU - Dunn, Bruce S.
AU - Ma, Jan
AU - Lu, Xuehong
PY - 2010/1/12
Y1 - 2010/1/12
N2 - In this article, we report the synthesis, structures, morphologies, and electrochromic properties of covalently bonded polyaniline (PANI)-TiO 2 hybrids. The hybrids were synthesized via a sol-gel process, followed by oxidative polymerization, using a bifunctional compound to bridge the two phases. In comparison with PANI, the hybrids show significant enhancement in optical contrast and coloration efficiency. Furthermore, when covalently bonded to PANI, the TiO2 nanodomains can act as electron acceptors, reducing the oxidation potential and band gap of PANI, and improving the long-term electrochromic stability.
AB - In this article, we report the synthesis, structures, morphologies, and electrochromic properties of covalently bonded polyaniline (PANI)-TiO 2 hybrids. The hybrids were synthesized via a sol-gel process, followed by oxidative polymerization, using a bifunctional compound to bridge the two phases. In comparison with PANI, the hybrids show significant enhancement in optical contrast and coloration efficiency. Furthermore, when covalently bonded to PANI, the TiO2 nanodomains can act as electron acceptors, reducing the oxidation potential and band gap of PANI, and improving the long-term electrochromic stability.
UR - http://www.scopus.com/inward/record.url?scp=74949108427&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=74949108427&partnerID=8YFLogxK
U2 - 10.1021/cm903058c
DO - 10.1021/cm903058c
M3 - Article
AN - SCOPUS:74949108427
SN - 0897-4756
VL - 22
SP - 255
EP - 260
JO - Chemistry of Materials
JF - Chemistry of Materials
IS - 1
ER -