A compressible mesoporous SiO2 sponge supported by a carbon nanotube   network

doi:10.1039/c3nr05931f

CORC > 北京大学 > 工学院

	A compressible mesoporous SiO2 sponge supported by a carbon nanotube network
	Yang, Yanbing ; Shi, Enzheng ; Li, Peixu ; Wu, Dehai ; Wu, Shiting ; Shang, Yuanyuan ; Xu, Wenjing ; Cao, Anyuan ; Yuan, Quan
刊名	nanoscale
	2014
关键词	SILICA MONOLITH GRAPHENE AEROGEL MICROSPHERES PERFORMANCE ADSORPTION CATALYSIS SIZE
DOI	10.1039/c3nr05931f
英文摘要	Applications of mesoporous silica (m-SiO2) have suffered from its fragility (monolithic m-SiO2 easily collapses under compression) and limited internal molecular exchange through small channels. Previously reported hierarchical porous m-SiO2 structures containing interconnected macropores could improve adsorption properties, but they were still intrinsically fragile without sufficient mechanical strength to sustain deformation. Here, we embed a three-dimensional carbon nanotube (CNT) skeleton into m-SiO2 to fabricate bulk, robust sponges that can be compressed to large strains (60% volume reduction) repeatedly in both air and water. This is done by directly casting a uniform m-SiO2 layer with tunable thickness onto the surface of CNTs while maintaining the original network and open porous structure, resulting in a core-shell CNT@m-SiO2 hybrid sponge. By pumping fluid through the CNT@m-SiO2 sponges under cyclic compression, the adsorption rate and efficiency of dye molecules can be significantly enhanced due to the mesoporous coating on CNTs and enhanced fluid exchange throughout internal pores. The CNT@m-SiO2 sponges may be used as robust and flexible adsorption media, and chemical and biological sensors with high performance.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000333042500022&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; SCI(E); EI; 5; ARTICLE; anyuan@pku.edu.cn; yuanquan@whu.edu.cn; 7; 3585-3592; 6
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/154366]
专题	工学院
推荐引用方式 GB/T 7714	Yang, Yanbing,Shi, Enzheng,Li, Peixu,et al. A compressible mesoporous SiO2 sponge supported by a carbon nanotube network[J]. nanoscale,2014.
APA	Yang, Yanbing.,Shi, Enzheng.,Li, Peixu.,Wu, Dehai.,Wu, Shiting.,...&Yuan, Quan.(2014).A compressible mesoporous SiO2 sponge supported by a carbon nanotube network.nanoscale.
MLA	Yang, Yanbing,et al."A compressible mesoporous SiO2 sponge supported by a carbon nanotube network".nanoscale (2014).