CNT/Polymer nanocomposites;
Gas permeation;
I-V Characteristics and Surface topography;
GAS SEPARATION;
CARBON NANOTUBES;
POSITRON-ANNIHILATION;
PERMEATION;
ADSORPTION;
D O I:
10.1016/j.ijhydene.2009.02.068
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
CNT/Polymer nanocomposites have been fabricated by dispersing (0.1%) weight fraction of SWNT and MWNT in polycarbonate matrix separately using benzene as a solvent. Alignment has been performed by inducing DC electric field (500 V/cm). X-ray diffraction measurements have been performed to confirmation of SWNT, MWNT and their presence in PC matrix. Gas permeability has been found to be increased in aligned CNT/polymer nanocomposites comparison to random dispersed CNT/polymer nanocomposites. The electrical conductivity in aligned CNT/polymer composite membranes indicates two resistive regions. Experimental results exhibits here that CNT/polymer nanocomposite membranes can be used as good hydrogen separating media. Surface morphology of aligned CNT/polymer nanocomposites was confirmed by optical microscopy. (C) 2009 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.