Elastic shape recovery of carbon nanotube sponges in liquid oil

doi:10.1039/c2jm33686c

CORC > 北京大学 > 工学院

	Elastic shape recovery of carbon nanotube sponges in liquid oil
	Gui, Xuchun ; Zeng, Zhiping ; Cao, Anyuan ; Lin, Zhiqiang ; Zeng, Haiqiang ; Xiang, Rong ; Wu, Tianzhun ; Zhu, Yuan ; Tang, Zikang
刊名	材料化学杂志
	2012
关键词	TEMPERATURE-INVARIANT VISCOELASTICITY SELECTIVE ABSORPTION MEMBRANES GRAPHENE ENERGY WATER COMPRESSIBILITY COMPOSITES SOLIDS LAYERS
DOI	10.1039/c2jm33686c
英文摘要	Self-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(-1) 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.; Chemistry, Physical; Materials Science, Multidisciplinary; SCI(E); EI; 0; ARTICLE; 35; 18300-18305; 22
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/235861]
专题	工学院
推荐引用方式 GB/T 7714	Gui, Xuchun,Zeng, Zhiping,Cao, Anyuan,et al. Elastic shape recovery of carbon nanotube sponges in liquid oil[J]. 材料化学杂志,2012.
APA	Gui, Xuchun.,Zeng, Zhiping.,Cao, Anyuan.,Lin, Zhiqiang.,Zeng, Haiqiang.,...&Tang, Zikang.(2012).Elastic shape recovery of carbon nanotube sponges in liquid oil.材料化学杂志.
MLA	Gui, Xuchun,et al."Elastic shape recovery of carbon nanotube sponges in liquid oil".材料化学杂志 (2012).