Electron-Driven Metal Oxide Effusion and Graphene Gasification at Room   Temperature

doi:10.1021/acsnano.6b02625

CORC > 北京大学 > 化学与分子工程学院

	Electron-Driven Metal Oxide Effusion and Graphene Gasification at Room Temperature
	Ta, Huy Q. ; Bachmatiuk, Alicja ; Warner, Jamie H. ; Zhao, Liang ; Sun, Yinghui ; Zhao, Jiong ; Gemming, Thomas ; Trzebicka, Barbara ; Liu, Zhongfan ; Pribat, Didier ; Rummeli, Mark H.
刊名	ACS NANO
	2016
关键词	in situ TEM gasification effusion metal oxide nanoparticles graphene-like ZnO ENERGY-LOSS SPECTROSCOPY IN-SITU OBSERVATIONS CARBON NANOTUBES LAYER GRAPHENE ATOMIC-SCALE NANOPARTICLES OXIDATION STABILITY GRAPHITE EDGES
DOI	10.1021/acsnano.6b02625
英文摘要	Metal oxide nanoparticles decorating graphene have attracted abundant interest in the scientific community owing to their significant application in various areas such as batteries, gas sensors, and photocatalysis. In addition, metal and metal oxide nanoparticles are of great interest for the etching of graphene, for example, to form nanoribbons, through gasification reactions. Hence it is important to have a good understanding of how nanoparticles interact with graphene. In this work we examine, in situ, the behavior of CuO and ZnO nanoparticles on graphene at room temperature while irradiated by electrons in a transmission electron microscope. ZnO is shown to etch graphene through gasification. In the gasification reaction C from graphene is released as CO or CO2. We show that the reaction can occur at room temperature. Moreover, CuO and ZnO particles trapped within a graphene fold are shown to effuse out of a fold through small ruptures. The mass transport in the effusion process between the CuO and ZnO particles is fundamentally different. Mass transport for CuO occurs in an amorphous phase, while for ZnO mass transport occurs through the short-lived gliding of vacancies and dislocations. The work highlights the potential and wealth of electron beam driven chemical reactions of nanomaterials, even at room temperature.; EOARD; National Science Centre [2014/13/D/ST5/02853]; SCI(E); EI; ARTICLE; mhr1@suda.edu.cn; 6; 6323-6330; 10
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/492261]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Ta, Huy Q.,Bachmatiuk, Alicja,Warner, Jamie H.,et al. Electron-Driven Metal Oxide Effusion and Graphene Gasification at Room Temperature[J]. ACS NANO,2016.
APA	Ta, Huy Q..,Bachmatiuk, Alicja.,Warner, Jamie H..,Zhao, Liang.,Sun, Yinghui.,...&Rummeli, Mark H..(2016).Electron-Driven Metal Oxide Effusion and Graphene Gasification at Room Temperature.ACS NANO.
MLA	Ta, Huy Q.,et al."Electron-Driven Metal Oxide Effusion and Graphene Gasification at Room Temperature".ACS NANO (2016).