Vertically oriented silica mesochannels as the template for electrodeposition of polyaniline nanostructures and their electrocatalytic and electroanalytical applications.
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.
Institute of Microanalytical Systems, Centre for High Performance and Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou 310058 (China).
Longhua
L
Ding
Wanzhen
W
Li
Qiaohong
Q
Wang
Qinqin
Q
Sun
Yayun
Y
He
Bin
B
Su
electrocatalysis; electrodeposition; mesoporous materials; polyaniline; silica mesochannels