Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.cherd.2010.09.007
DC FieldValue
dc.titlePorous nano- and microfibrous polymeric membrane material for catalytic support
dc.contributor.authorBarhate, R.S.
dc.contributor.authorKoeppl, S.
dc.contributor.authorRamakrishna, S.
dc.date.accessioned2014-10-07T09:09:27Z
dc.date.available2014-10-07T09:09:27Z
dc.date.issued2011-06
dc.identifier.citationBarhate, R.S., Koeppl, S., Ramakrishna, S. (2011-06). Porous nano- and microfibrous polymeric membrane material for catalytic support. Chemical Engineering Research and Design 89 (6) : 621-630. ScholarBank@NUS Repository. https://doi.org/10.1016/j.cherd.2010.09.007
dc.identifier.issn02638762
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/85561
dc.description.abstractHigh surface area is essential for attachment of functional groups, ions, moieties and nanoparticles. Surface area of fibrous membrane can be enhanced by reducing the fiber diameter or producing the porous fibers. Flow properties of the fibrous membrane can be improved by placing the fibers apart in the fibrous network. By electrospinning, it is feasible to produce the fibrous membrane of specific surface area and Darcy permeability higher than 60m2/g and 1×10-11m2, respectively. The interconnected irregular shape mesopores (2-50nm) within the fibers increase the accessible surface area. On the other hand, presence of macropores (pores larger than 50nm) largely increases the pore volume (porosity) in fibers and helps to reduce the diffusion resistances. Beaded fibers in the membrane can be used to reduce the bulk transport resistances. We developed a method for incorporating the mesopores and macropores in the nano/microfibers made of engineering plastics. To achieve ∼60m2/g specific surface area by reducing the fiber diameter, one needs to draw the fibers down to 50-60nm. In present study, 60m2/g of specific surface area is achieved through the porous fibers of average diameter of 900nm. A specific surface area result from the porous fiber is much higher than one can achieve by reducing the diameter of fibers. © 2010 The Institution of Chemical Engineers.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.cherd.2010.09.007
dc.sourceScopus
dc.subjectElectrospinning
dc.subjectFibrous membrane
dc.subjectNanofiber
dc.subjectPorous material
dc.subjectSurface area
dc.typeArticle
dc.contributor.departmentNUS NANOSCIENCE & NANOTECH INITIATIVE
dc.contributor.departmentMECHANICAL ENGINEERING
dc.description.doi10.1016/j.cherd.2010.09.007
dc.description.sourcetitleChemical Engineering Research and Design
dc.description.volume89
dc.description.issue6
dc.description.page621-630
dc.description.codenCERDE
dc.identifier.isiut000292065700009
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