Journal
POLYMER
Volume 50, Issue 13, Pages 2786-2792Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2009.04.056
Keywords
Multiwalled carbon nanotubes; Silk fibroin; Ice-templating
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Funding
- Korean Government (MOST) [R01-2007-000-10438-0]
- Korea Institute of Industrial Technology(KITECH) [10024595] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [R01-2007-000-10438-0] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Multiwalled carbon nanotube (MWCNT) cryogels were fabricated with aligned and non-aligned porous structures. The MWCNT cryogels contained a major fraction of MWCNTs with a minor fraction of silk fibroin as the structure binder. The morphology of the porous structures was controlled using a sol-gel process of silk fibroin to form the network structures. Microchannel structures were formed by ice-templating. The MWCNT cryogels contained mesopores and formed as monoliths. The MWCNT cryogels with aligned porous structures showed better thermal stability and electrical conductivity than the MWCNT cryogels with non-aligned porous structures due to the advantageous MWCNT interconnections. The morphology of the porous structures was examined by field emission scanning electron microscopy and transmission electron microscopy. The structure-property relationships of the MWCNT cryogels and the performance of the MWCNT cryogels as electrodes were investigated. (C) 2009 Elsevier Ltd. All rights reserved.
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