Holey reduced graphene oxide nanosheets for high performance room temperature gas sensing

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	Holey reduced graphene oxide nanosheets for high performance room temperature gas sensing
	陈韦; 胡颖
刊名	URNAL OF MATERIALS CHEMISTRY A
	2014-11-07
卷号	2 期号:41 页码:17415-17420
关键词	CARBON NANOTUBES CHEMICAL SENSORS TIN OXIDE STEAM ULTRAHIGH SENSITIVITY NANOCRYSTALS NO2 SENSORS GRAPHITE SHEETS ULTRAHIGH
通讯作者	陈韦
英文摘要	Holey reduced graphene oxide (RGO) sheets were formed by one-pot hydrothermal treatment ofgraphene oxide (GO) at a dilute concentration (0.25 mg ml(-1)). The holes were generated through a carbon gasification reaction with the steam created in the hydrothermal system. The perforated structure provides not only sufficient active sites for molecule adsorption, but also provides channelsfor gas diffusion. Thus, the sensor based on the networks, which were constructed from the perforated RGO nanosheets, exhibited an enhanced sensitivity to toxic NO2 gas at ppb level, surpassing theperformance of the annealed RGO. Interestingly, the polarity of the holey RGO transformed from p-mode to n-mode after exposure to NH3 and a repeatable sensing to NH3 within-mode nanoporous RGO was observed. The results demonstrate that structure modification of RGO through perforation is a promising approach for improving the sensing performance. Furthermore, the perforated RGO obtained through a one-pot hydrothermal process can be used for high performance gas sensing at roomtemperature, demonstrating its practical application in flexible and wearable gas sensors based on the good mechanical flexibility of RGO.
收录类别	SCI
语种	英语
WOS记录号	WOS:000342763300027
公开日期	2014-11-27
内容类型	期刊论文
源URL	[http://ir.sinano.ac.cn/handle/332007/1539]
专题	苏州纳米技术与纳米仿生研究所_纳米研究国际实验室_陈韦团队
通讯作者	陈韦
推荐引用方式 GB/T 7714	陈韦,胡颖. Holey reduced graphene oxide nanosheets for high performance room temperature gas sensing[J]. URNAL OF MATERIALS CHEMISTRY A,2014,2(41):17415-17420.
APA	陈韦,&胡颖.(2014).Holey reduced graphene oxide nanosheets for high performance room temperature gas sensing.URNAL OF MATERIALS CHEMISTRY A,2(41),17415-17420.
MLA	陈韦,et al."Holey reduced graphene oxide nanosheets for high performance room temperature gas sensing".URNAL OF MATERIALS CHEMISTRY A 2.41(2014):17415-17420.