In-situ ESEM and EELS observation of water uptake and ice formation in multilayer graphene oxide

Daio, Takeshi and Bayer, Thomas and Ikuta, Tatsuya and Nishiyama, Takashi and Takahashi, Koji and Takata, Yasuyuki and Sasaki, Kazunari and Lyth, Stephen Matthew (2015) In-situ ESEM and EELS observation of water uptake and ice formation in multilayer graphene oxide. Scientific Reports, 5 (1). pp. 1-8. 11807. ISSN 2045-2322 (https://doi.org/10.1038/SREP11807)

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Abstract

Graphene oxide (GO) is hydrophilic and swells significantly when in contact with water. Here, we investigate the change in thickness of multilayer graphene oxide membranes due to intercalation of water, via humidity-controlled observation in an environmental scanning electron microscope (ESEM). The thickness increases reproducibly with increasing relative humidity. Electron energy loss spectroscopy (EELS) reveals the existence of water ice under cryogenic conditions, even in high vacuum environment. Additionally, we demonstrate that freezing then thawing water trapped in the multilayer graphene oxide membrane leads to the opening up of micron-scale inter-lamellar voids due to the expansion of ice crystals.

  • Item type:Article
    ID code:85564
    Dates:
    Date
    Event
    2 July 2015
    Published
    8 June 2015
    Accepted
    8 January 2015
    Submitted
    Notes:Funding Information: This research is supported by The Japan Science and Technology Agency (JST) through its “Center of Innovation” Science and Technology based Radical Innovation and Entrepreneurship Program (COI Program). The International Institute for Carbon-Neutral Energy Research is supported by World Premier International Research Center Initiative (WPI), MEXT, Japan. We appreciate Rod Ruoff reading and commenting on the manuscript. Publisher Copyright: © 2015, Nature Research. All rights reserved. Daio, T., Bayer, T., Ikuta, T. et al. In-Situ ESEM and EELS Observation of Water Uptake and Ice Formation in Multilayer Graphene Oxide. Sci Rep 5, 11807 (2015). https://doi.org/10.1038/srep11807
    Subjects:Science > Chemistry
    Department:Faculty of Engineering > Chemical and Process Engineering
    Depositing user: Pure Administrator
    Date deposited:18 May 2023 13:08
    Last modified:22 Apr 2024 00:55
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/85564
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