Encapsulation of polyaniline in 3-D interconnected mesopores of silica KIT-6.
Composite material PANI/KIT-6, with polyaniline (PANI) chains encapsulated in the 3-D interconnected pore channels of mesoporous silica, KIT-6, has been synthesized via a gas-phase method. The composite formation and the presence of PANI inside the pore channels of KIT-6 were evidenced by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), small-angle X-ray scatter (SAXS), transmission electron microscopy (TEM), and N(2) adsorption-desorption isotherms. The PANI/KIT-6 composite showed good electrical conductivity (2.4x10(-3) S/cm) due to the formation of 3-D networks of PANI inside the 3-D interconnected channels of KIT-6. The resistance of PANI/KIT-6 composite at different relative humidities (RH) was investigated. An essentially linear relationship between the relative resistance of the composite and the relative humidity of the environment was found from 11.3% to 97.3% RH.
Dou
Yu-Qian
YQ
Department of Chemistry, Northeastern University, Shenyang 110004, People's Republic of China.
Zhai
Yunpu
Y
Zeng
Fanwu
F
Liu
Xiao-Xia
XX
Tu
Bo
B
Zhao
Dongyuan
D