Discrete Dynamics of Nanoparticle Channelling in Suspended Graphene

Publication: Research - peer-reviewLetter – Annual report year: 2011

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We have observed a previously undescribed stepwise oxidation of mono- and few layer suspended graphene by silver nanoparticles in situ at subnanometer scale in an environmental transmission electron microscope. Over the range of 600–850 K, we observe crystallographically oriented channelling with rates in the range 0.01–1 nm/s and calculate an activation energy of 0.557 ± 0.016 eV. We present a discrete statistical model for this process and discuss the implications for accurate nanoscale patterning of nanoscale systems.
Original languageEnglish
JournalNano Letters
Volume11
Issue number7
Pages (from-to)2689-2692
ISSN1530-6984
DOIs
StatePublished - 2011
Peer-reviewedYes
CitationsWeb of Science® Times Cited: 24

Keywords

  • Channelling, Graphene, Silver nanoparticles, Catalysis, Graphene membranes
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