Nanoporous Polymeric Membranes for Hydrogen Separation
371
Li et al. (2017) fabricated a hybrid membrane of C/CNT for the gas permeability
of H 2 , CO 2 , O 2 , N 2 , and CH 4 . In this work, authors used CNTs in the form of singlewalled carbon nanotubes (SWCNTs) and multiwalled carbon nanotubes (MWCNTs) individually in the membranes. Their results show that MWCNTs incorporated
Carbon membrane exhibit higher permeability but lower selectivity than SWCNTs
embedded Carbon membrane. Further, acid treatment of the MWCNTs helps to open
the blocked ends which can help to enhance the selectivity. There are many review
articles published for the composite polymeric membranes for the hydrogen separation. Some of them are Perovskite-based (Hashim et al. 2018), graphene-based (Song
et al. 2018), dense metal membrane-based (Al-Mufachi et al. 2015), silica-based
membranes (Khatib and Oyama 2013) and non-Pd BCC alloy-based membranes
(Dolan 2010).
7 Conclusion
In this chapter, we have discussed the gas separation of engineered porous polymeric
membranes by different methods for the fabrication of gas-selective membranes.
Membrane-based gas separation has the trade-off relation between the permeability
and selectivity. To overcome this issue, the engineering of pore channels by functionalization with a suitable group and depositing the gas-sensitive nanomaterials could
be one possible way. Composite membranes with block copolymer nanotemplates
also affect the permeability of a specific gas as well as selectivity. Carbon-based
dense membranes are also useful to alter the gas permeability and selectivity of the
polymeric membranes.
References
1. Al-Mufachi NA, Rees NV, Steinberger-Wilkens R (2015) Hydrogen selective membranes: a
review of palladium-based dense metal membranes. Renew Sustain Energy Rev 47:540–551.
https://doi.org/10.1016/j.rser.2015.03.026
2. Apel PY, Blonskaya IV, Dmitriev SN et al (2006) Structure of polycarbonate track-etch membranes: origin of the “paradoxical” pore shape. J Memb Sci 282:393–400. https://doi.org/10.
1016/j.memsci.2006.05.045
3. Babu DJ, Lange M, Cherkashinin G et al (2013) Gas adsorption studies of CO 2 and N 2 in
spatially aligned double-walled carbon nanotube arrays. Carbon NY 61:616–623. https://doi.
org/10.1016/j.carbon.2013.05.045
4. Baker RW, Lokhandwala K (2008) Natural gas processing with membranes: an overview. Ind
Eng Chem Res 47:2109–2121
5. Bakhtiari O, Sadeghi N (2015) Mixed matrix membranes’ gas separation performance prediction using an analytical model. Chem Eng Res Des 93:710–719. https://doi.org/10.1016/j.
cherd.2014.06.013
6. Basyooni MA, Shaban M, El Sayed AM (2017) Enhanced gas sensing properties of spincoated Na-doped ZnO nanostructured films. Sci Rep 7:41716
7. Beard MC, Luther JM, Nozik AJ (2014) The promise and challenge of nanostructured solar
cells. Nat Nanotechnol 9:951
371
Li et al. (2017) fabricated a hybrid membrane of C/CNT for the gas permeability
of H 2 , CO 2 , O 2 , N 2 , and CH 4 . In this work, authors used CNTs in the form of singlewalled carbon nanotubes (SWCNTs) and multiwalled carbon nanotubes (MWCNTs) individually in the membranes. Their results show that MWCNTs incorporated
Carbon membrane exhibit higher permeability but lower selectivity than SWCNTs
embedded Carbon membrane. Further, acid treatment of the MWCNTs helps to open
the blocked ends which can help to enhance the selectivity. There are many review
articles published for the composite polymeric membranes for the hydrogen separation. Some of them are Perovskite-based (Hashim et al. 2018), graphene-based (Song
et al. 2018), dense metal membrane-based (Al-Mufachi et al. 2015), silica-based
membranes (Khatib and Oyama 2013) and non-Pd BCC alloy-based membranes
(Dolan 2010).
7 Conclusion
In this chapter, we have discussed the gas separation of engineered porous polymeric
membranes by different methods for the fabrication of gas-selective membranes.
Membrane-based gas separation has the trade-off relation between the permeability
and selectivity. To overcome this issue, the engineering of pore channels by functionalization with a suitable group and depositing the gas-sensitive nanomaterials could
be one possible way. Composite membranes with block copolymer nanotemplates
also affect the permeability of a specific gas as well as selectivity. Carbon-based
dense membranes are also useful to alter the gas permeability and selectivity of the
polymeric membranes.
References
1. Al-Mufachi NA, Rees NV, Steinberger-Wilkens R (2015) Hydrogen selective membranes: a
review of palladium-based dense metal membranes. Renew Sustain Energy Rev 47:540–551.
https://doi.org/10.1016/j.rser.2015.03.026
2. Apel PY, Blonskaya IV, Dmitriev SN et al (2006) Structure of polycarbonate track-etch membranes: origin of the “paradoxical” pore shape. J Memb Sci 282:393–400. https://doi.org/10.
1016/j.memsci.2006.05.045
3. Babu DJ, Lange M, Cherkashinin G et al (2013) Gas adsorption studies of CO 2 and N 2 in
spatially aligned double-walled carbon nanotube arrays. Carbon NY 61:616–623. https://doi.
org/10.1016/j.carbon.2013.05.045
4. Baker RW, Lokhandwala K (2008) Natural gas processing with membranes: an overview. Ind
Eng Chem Res 47:2109–2121
5. Bakhtiari O, Sadeghi N (2015) Mixed matrix membranes’ gas separation performance prediction using an analytical model. Chem Eng Res Des 93:710–719. https://doi.org/10.1016/j.
cherd.2014.06.013
6. Basyooni MA, Shaban M, El Sayed AM (2017) Enhanced gas sensing properties of spincoated Na-doped ZnO nanostructured films. Sci Rep 7:41716
7. Beard MC, Luther JM, Nozik AJ (2014) The promise and challenge of nanostructured solar
cells. Nat Nanotechnol 9:951