Journal article
CNT/PDMS composite membranes for H2 and CH4 gas separation
M Nour, K Berean, S Balendhran, JZ Ou, JD Plessis, C McSweeney, M Bhaskaran, S Sriram, K Kalantar-zadeh
International Journal of Hydrogen Energy | Published : 2013
Abstract
Polydimethylsiloxane (PDMS) composites with different weight amounts of multi-walled carbon nanotubes (MWCNT) were synthesised as membranes to evaluate their gas separation properties. The selectivity of the membranes was investigated for the separation of H2 from CH4 gas species. Membranes with MWCNT concentrations of 1% increased the selectivity to H2 gas by 94.8%. Furthermore, CH4 permeation was almost totally blocked through membranes with MWCNT concentrations greater than 5%. Vibrational spectroscopy and X-ray photoelectron spectroscopy techniques revealed that upon the incorporation of MWCNT a decrease in the number of available Si-CH3 and Si-O bonds as well as an increase in the forma..
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Awarded by Australian Research Council
Funding Acknowledgements
MN acknowledges the Saudi Arabian Ministry of Higher Education for Financial support. MB and SS acknowledge the Australian Post-Doctoral Fellowships from the Australian Research Council through Discovery Projects DP1092717 and DP110100262, respectively. JDP, SS, and KKZ acknowledge the Australian Research Council for equipment funding through the Linkage, Infrastructure, Equipment, and Facilities Grants LE0989615 and LE100100215.