ISIS Neutron and Muon Source Data Journal

Graphene Surface Functionalisation Effect on Hydrogen Spillover

Abstract: Hydrogen spillover involves dissociation of molecular hydrogen at the surface of metals, particularly transition metals, followed by migration of the hydrogen atoms across the surface which in this case is few-layer graphene. Surface functionalisation, particularly oxygen functionalisation of graphene has been shown to increase this effect, but the mechanism is not known. In-situ, inelastic neutron scattering studies can distinguish between weakly bound hydrogen atoms, physically bound hydrogen molecules and chemically bound hydrogen atoms including differentiating hydrogen atoms that are in clusters of up to three hydrogen atoms in nearest-neighbour configuration. Using few-layer graphene¿s doped with platinum nanoparticles and exhibiting surface oxygen content ranging from 7-30 wt.%, we will study the spillover mechanism with the aim of elucidating the bound state of hydrogen atoms.

Principal Investigator: Dr Jim Webb
Experimenter: Ms Shahrzad Seyed Mohammad Shahi
Experimenter: Mr Timothy Webb
Experimenter: Mr Darryl Pyle
Experimenter: Professor Evan Gray

DOI: 10.5286/ISIS.E.RB1510506

ISIS Experiment Number: RB1510506

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Dr Jim Webb et al; (2015): Graphene Surface Functionalisation Effect on Hydrogen Spillover, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1510506

Data is released under the CC-BY-4.0 license.