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

Takeshi Daio; Thomas Bayer; Tatsuya Ikuta; Takashi Nishiyama; Koji Takahashi; Yasuyuki Takata; Kazunari Sasaki; Stephen Matthew Lyth

doi:10.1038/SREP11807

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

Takeshi Daio
, Thomas Bayer
, Tatsuya Ikuta
, Takashi Nishiyama
, Koji Takahashi
, Yasuyuki Takata
, Kazunari Sasaki
, Stephen Matthew Lyth^*

^*Corresponding author for this work

Chemical And Process Engineering

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

31 Citations (Scopus)

8 Downloads (Pure)

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.

Original language	English
Article number	11807
Pages (from-to)	1-8
Number of pages	8
Journal	Scientific Reports
Volume	5
Issue number	1
DOIs	https://doi.org/10.1038/SREP11807
Publication status	Published - 2 Jul 2015

Funding

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.

Keywords

graphene
multilayer graphene oxide membranes
environmental scanning electron microscope
electron energy loss spectroscopy (EELS)
water ice

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10.1038/SREP11807Licence: CC BY 4.0

Daio-etal-SR2015-In-situ-ESEM-EELS-observation-water-uptake-ice-formation-multilayer-graphene-oxideFinal published version, 4.81 MBLicence: CC BY 4.0

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

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.",

keywords = "graphene, multilayer graphene oxide membranes, environmental scanning electron microscope, electron energy loss spectroscopy (EELS), water ice",

author = "Takeshi Daio and Thomas Bayer and Tatsuya Ikuta and Takashi Nishiyama and Koji Takahashi and Yasuyuki Takata and Kazunari Sasaki and Lyth, \{Stephen Matthew\}",

note = "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: {\textcopyright} 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 ",

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AU - Daio, Takeshi

AU - Bayer, Thomas

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AU - Takahashi, Koji

AU - Takata, Yasuyuki

AU - Sasaki, Kazunari

AU - Lyth, Stephen Matthew

N1 - 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

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

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