Metal Oxide Nanoparticle Growth on Graphene via Chemical Activation with Atomic Oxygen.
Chemically interfacing the inert basal plane of graphene with other materials has limited the development of graphene-based catalysts, composite materials, and devices. Here, we overcome this limitation by chemically activating epitaxial graphene on SiC(0001) using atomic oxygen. Atomic oxygen produ...
| Publicado en: | Journal of the American Chemical Society Vol. 135; no. 48; pp. 18121 - 18126 |
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| Autores principales: | , , , , , |
| Formato: | Artículo |
| Publicado: |
American Chemical Society
12/4/2013
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=hlh&AN=93312299&site=ehost-live header: @attributes: shortDbName: hlh uiTerm: 93312299 longDbName: Humanities International Complete uiTag: AN controlInfo: bkinfo: jinfo: jid: 00027863 ACS jtl: Journal of the American Chemical Society issn: 00027863 maglogo: N pubinfo: dt: 12/4/2013 vid: 135 iid: 48 pid: 997 pub: American Chemical Society artinfo: ui: 93312299 10.1021/ja408248z ppf: 18121 ppct: 5 formats: tig: atl: Metal Oxide Nanoparticle Growth on Graphene via Chemical Activation with Atomic Oxygen. aug: au: Johns, James E. Alaboson, Justice M. P. Patwardhan, Sameer Ryder, Christopher R. Schatz, George C. Hersam, Mark C. affil: Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States Department of Medicine, Northwestern University, Evanston, Illinois 60208, United States Argonne-Northwestern Solar Energy Research (ANSER) Center, Northwestern University, Evanston, Illinois 60208, United States Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States su: Nanoparticles Activation (Chemistry) Metallic oxides Atomic layer deposition Scanning probe microscopy Raman spectroscopy Density functional theory sug: subj: Nanoparticles Activation (Chemistry) Metallic oxides Atomic layer deposition Scanning probe microscopy Raman spectroscopy Density functional theory ab: Chemically interfacing the inert basal plane of graphene with other materials has limited the development of graphene-based catalysts, composite materials, and devices. Here, we overcome this limitation by chemically activating epitaxial graphene on SiC(0001) using atomic oxygen. Atomic oxygen produces epoxide groups on graphene, which act as reactive nucleation sites for zinc oxide nanoparticle growth using the atomic layer deposition precursor diethyl zinc. In particular, exposure of epoxidized graphene to diethyl zinc abstracts oxygen, creating mobile species that diffuse on the surface to form metal oxide clusters. This mechanism is corroborated with a combination of scanning probe microscopy, Raman spectroscopy, and density functional theory and can likely be generalized to a wide variety of related surface reactions on graphene. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: Y dt: @attributes: year: 2013 holdings: @attributes: islocal: N |
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