Growth Mechanism of Graphene on Ru(0001) and O-2 Adsorption on the Graphene/Ru(0001) Surface

	Growth Mechanism of Graphene on Ru(0001) and O-2 Adsorption on the Graphene/Ru(0001) Surface
	Zhang, Hui; Fu, Qiang; Cui, Yi; Tan, Dali; Bao, Xinhe
刊名	journal of physical chemistry c
	2009-05-14
卷号	113 期号:19 页码:8296-8301
英文摘要	the growth mechanism of monolayer (ml) graphene on ru(0001) via pyrolysis of c2h4 was studied by scanning tunneling microscopy (stm), high-resolution electron energy loss spectroscopy (hreels), and ultraviolet photoelectron spectroscopy (ups). on the basis of the mechanistic understanding, graphene overlayers ranging from nanographene clusters to graphene film with 1 ml coverage were prepared in a well-controlled way. o-2 adsorption on the graphene/ru(0001) surface was investigated by stm, ups, and x-ray photoelectron spectroscopy (xps). it is revealed that the ru(0001) surface fully covered by graphene becomes passivated to o-2 adsorption at room temperature and only activated again at elevated temperatures (>500 k). the adsorbed oxygen intercalates between the topmost graphene overlayer and the ru(0001) substrate surface. these intercalated oxygen atoms decouple the graphene layer from the ru(0001) substrate, forming quasi-freestanding monolayer graphene atomic crystals floating on the o-ru(0001) surface.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	chemistry, physical ; nanoscience & nanotechnology ; materials science, multidisciplinary
研究领域[WOS]	chemistry ; science & technology - other topics ; materials science
关键词[WOS]	energy-loss spectroscopy ; scanning-tunneling-microscopy ; angle-resolved photoemission ; carbon nanotubes ; oxidative dehydrogenation ; graphite monolayer ; oxygen-adsorption ; thermal evolution ; supported silver ; pt(111) surface
收录类别	SCI
语种	英语
WOS记录号	WOS:000265895500047
公开日期	2015-11-17
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/141243]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Hui,Fu, Qiang,Cui, Yi,et al. Growth Mechanism of Graphene on Ru(0001) and O-2 Adsorption on the Graphene/Ru(0001) Surface[J]. journal of physical chemistry c,2009,113(19):8296-8301.
APA	Zhang, Hui,Fu, Qiang,Cui, Yi,Tan, Dali,&Bao, Xinhe.(2009).Growth Mechanism of Graphene on Ru(0001) and O-2 Adsorption on the Graphene/Ru(0001) Surface.journal of physical chemistry c,113(19),8296-8301.
MLA	Zhang, Hui,et al."Growth Mechanism of Graphene on Ru(0001) and O-2 Adsorption on the Graphene/Ru(0001) Surface".journal of physical chemistry c 113.19(2009):8296-8301.