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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
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY C
2009-05-14
DOI10.1021/jp810514u
Volume113Issue:19Pages:8296-8301
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
WOS KeywordENERGY-LOSS SPECTROSCOPY ; SCANNING-TUNNELING-MICROSCOPY ; ANGLE-RESOLVED PHOTOEMISSION ; CARBON NANOTUBES ; OXIDATIVE DEHYDROGENATION ; GRAPHITE MONOLAYER ; OXYGEN-ADSORPTION ; THERMAL EVOLUTION ; SUPPORTED SILVER ; PT(111) SURFACE
AbstractThe 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.
Language英语
WOS IDWOS:000265895500047
Citation statistics
Cited Times:132[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/141243
Collection中国科学院大连化学物理研究所
AffiliationChinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
Recommended Citation
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.
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