Elastic shape recovery of carbon nanotube sponges in liquid oil
Gui X.1; Zeng Z.1; Cao A.2; Lin Z.1; Zeng H.1; Xiang R.1; Wu T.1; Zhu Y.1; Tang Z.1
Source PublicationJournal of Materials Chemistry
ISSN09599428 13645501
AbstractSelf-assembled porous nanomaterials are potential candidates for applications such as filtration, adsorption and cleanup, yet their interactions with the surrounding environment and structural stability under external loads or fluid flow have not been adequately studied. Here, we investigated mechanical deformation and shape recovery of bulk carbon nanotube sponges immersed in various liquid oils under repeated compression cycles at large strains (50%). The nanotube sponges show virtually elastic recovery to their original volume (>98%) in the presence of oil, compared to other media such as air or water in which significant plastic deformation occurs. Oil was squeezed out of the sponge pores during compression and then sucked into the sponges to enable structure recovery when load is released, indicating the possibility for recycled oil adsorption. Smooth oil infiltration into the nanotube sponges by laminar flow is a critical factor for maintaining stable isotropic nanotube networks and promoting fast volume expansion with a thickness recovery rate of >10 mm min in low-viscosity oils. Our carbon nanotube sponges might be used in environmental applications such as oil adsorption and spill cleanup with enhanced robustness and recyclability. © 2012 The Royal Society of Chemistry.
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Cited Times [WOS]:23   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.Sun Yat-Sen University
2.Peking University
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GB/T 7714
Gui X.,Zeng Z.,Cao A.,et al. Elastic shape recovery of carbon nanotube sponges in liquid oil[J]. Journal of Materials Chemistry,2012,22(35):18300-18305.
APA Gui X..,Zeng Z..,Cao A..,Lin Z..,Zeng H..,...&Tang Z..(2012).Elastic shape recovery of carbon nanotube sponges in liquid oil.Journal of Materials Chemistry,22(35),18300-18305.
MLA Gui X.,et al."Elastic shape recovery of carbon nanotube sponges in liquid oil".Journal of Materials Chemistry 22.35(2012):18300-18305.
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