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Atomic structure of graphene subnanometer pores
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Robertson, Alex W., Lee, Gun-Do, He, Kuang, Gong, Chuncheng, Chen, Qu, Yoon, Euijoon, Kirkland, Angus I. and Warner, Jamie H. (2015) Atomic structure of graphene subnanometer pores. ACS Nano, 9 (12). pp. 11599-11607. doi:10.1021/acsnano.5b05700 ISSN 1936-0851.
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Official URL: http://dx.doi.org/10.1021/acsnano.5b05700
Abstract
The atomic structure of subnanometer pores in graphene, of interest due to graphene’s potential as a desalination and gas filtration membrane, is demonstrated by atomic resolution aberration corrected transmission electron microscopy. High temperatures of 500 °C and over are used to prevent self-healing of the pores, permitting the successful imaging of open pore geometries consisting of between −4 to −13 atoms, all exhibiting subnanometer diameters. Picometer resolution bond length measurements are used to confirm reconstruction of five-membered ring projections that often decorate the pore perimeter, knowledge which is used to explore the viability of completely self-passivated subnanometer pore structures; bonding configurations where the pore would not require external passivation by, for example, hydrogen to be chemically inert.
Item Type: | Journal Article | ||||||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||||
Journal or Publication Title: | ACS Nano | ||||||||||
Publisher: | American Chemical Society | ||||||||||
ISSN: | 1936-0851 | ||||||||||
Official Date: | 22 December 2015 | ||||||||||
Dates: |
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Volume: | 9 | ||||||||||
Number: | 12 | ||||||||||
Page Range: | pp. 11599-11607 | ||||||||||
DOI: | 10.1021/acsnano.5b05700 | ||||||||||
Status: | Peer Reviewed | ||||||||||
Publication Status: | Published | ||||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||||
Copyright Holders: | American Chemical Society | ||||||||||
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