Discrete Dynamics of Nanoparticle Channelling in Suspended Graphene

Tim Booth; Filippo Pizzocchero; Henrik Andersen; Thomas Willum Hansen; Jakob Birkedal Wagner; Joerg R. Jinschek; Rafal E. Dunin-Borkowski; Ole Hansen; Peter Bøggild

doi:10.1021/nl200928k

Discrete Dynamics of Nanoparticle Channelling in Suspended Graphene

Tim Booth
, Filippo Pizzocchero
, Henrik Andersen
, Thomas Willum Hansen
, Jakob Birkedal Wagner
, Joerg R. Jinschek
, Rafal E. Dunin-Borkowski
, Ole Hansen
, Peter Bøggild

National Centre for Nano Fabrication and Characterization

FEI Company bb.

Research output: Contribution to journal › Letter › peer-review

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Abstract

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 language	English
Journal	Nano Letters
Volume	11
Issue number	7
Pages (from-to)	2689-2692
ISSN	1530-6984
DOIs	https://doi.org/10.1021/nl200928k
Publication status	Published - 2011

Keywords

Channelling
Graphene
Silver nanoparticles
Catalysis
Graphene membranes

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title = "Discrete Dynamics of Nanoparticle Channelling in Suspended Graphene",

abstract = "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.",

keywords = "Channelling, Graphene, Silver nanoparticles, Catalysis, Graphene membranes",

author = "Tim Booth and Filippo Pizzocchero and Henrik Andersen and Hansen, \{Thomas Willum\} and Wagner, \{Jakob Birkedal\} and Jinschek, \{Joerg R.\} and Dunin-Borkowski, \{Rafal E.\} and Ole Hansen and Peter B{\o}ggild",

year = "2011",

doi = "10.1021/nl200928k",

language = "English",

volume = "11",

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journal = "Nano Letters",

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T1 - Discrete Dynamics of Nanoparticle Channelling in Suspended Graphene

AU - Booth, Tim

AU - Pizzocchero, Filippo

AU - Andersen, Henrik

AU - Hansen, Thomas Willum

AU - Wagner, Jakob Birkedal

AU - Jinschek, Joerg R.

AU - Dunin-Borkowski, Rafal E.

AU - Hansen, Ole

AU - Bøggild, Peter

PY - 2011

Y1 - 2011

N2 - 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.

AB - 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.

KW - Channelling

KW - Graphene

KW - Silver nanoparticles

KW - Catalysis

KW - Graphene membranes

U2 - 10.1021/nl200928k

DO - 10.1021/nl200928k

M3 - Letter

SN - 1530-6984

VL - 11

SP - 2689

EP - 2692

JO - Nano Letters

JF - Nano Letters

IS - 7

ER -

Discrete Dynamics of Nanoparticle Channelling in Suspended Graphene

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