Graphene Nanobubbles Produced by Water Splitting

Hongjie An, Beng Hau Tan, James Guo Sheng Moo, Sheng Liu, Martin Pumera, Claus Dieter Ohl

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Graphene nanobubbles are of significant interest due to their ability to trap mesoscopic volumes of gas for various applications in nanoscale engineering. However, conventional protocols to produce such bubbles are relatively elaborate and require specialized equipment to subject graphite samples to high temperatures or pressures. Here, we demonstrate the formation of graphene nanobubbles between layers of highly oriented pyrolytic graphite (HOPG) with electrolysis. Although this process can also lead to the formation of gaseous surface nanobubbles on top of the substrate, the two types of bubbles can easily be distinguished using atomic force microscopy. We estimated the Young’s modulus, internal pressure, and the thickness of the top membrane of the graphene nanobubbles. The hydrogen storage capacity can reach ∼5 wt % for a graphene nanobubble with a membrane that is four layers thick. The simplicity of our protocol paves the way for such graphitic nanobubbles to be utilized for energy storage and industrial applications on a wide scale.

Original languageEnglish
Pages (from-to)2833-2838
Number of pages6
JournalNano letters
Volume17
Issue number5
DOIs
Publication statusPublished - 2017 May 10

Fingerprint

water splitting
Graphite
Graphene
graphene
Water
bubbles
membranes
Membranes
internal pressure
pyrolytic graphite
Hydrogen storage
electrolysis
energy storage
Electrolysis
Energy storage
Industrial applications
Atomic force microscopy
modulus of elasticity
graphite
Elastic moduli

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

Cite this

An, H., Tan, B. H., Moo, J. G. S., Liu, S., Pumera, M., & Ohl, C. D. (2017). Graphene Nanobubbles Produced by Water Splitting. Nano letters, 17(5), 2833-2838. https://doi.org/10.1021/acs.nanolett.6b05183
An, Hongjie ; Tan, Beng Hau ; Moo, James Guo Sheng ; Liu, Sheng ; Pumera, Martin ; Ohl, Claus Dieter. / Graphene Nanobubbles Produced by Water Splitting. In: Nano letters. 2017 ; Vol. 17, No. 5. pp. 2833-2838.
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An, H, Tan, BH, Moo, JGS, Liu, S, Pumera, M & Ohl, CD 2017, 'Graphene Nanobubbles Produced by Water Splitting', Nano letters, vol. 17, no. 5, pp. 2833-2838. https://doi.org/10.1021/acs.nanolett.6b05183

Graphene Nanobubbles Produced by Water Splitting. / An, Hongjie; Tan, Beng Hau; Moo, James Guo Sheng; Liu, Sheng; Pumera, Martin; Ohl, Claus Dieter.

In: Nano letters, Vol. 17, No. 5, 10.05.2017, p. 2833-2838.

Research output: Contribution to journalArticle

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