Inelastic neutron scattering of hydrogen interaction with Pt and Ni decoratedgraphene
We propose to investigate different transition-metal decorated graphene samples, either with nichel or platinum nanoparticles, by means of inelastic neutron scattering under H2 atmosphere, in order to clarify the hydrogenation process and to possibly highlight the presence of spillover effect. In fact, this kind of investigation is uniquely able to reveal the molecular or atomic state of the hydrogen in these systems: molecular H2 presence is revealed at low temperature via the detection of the para- to ortho-H2 rotational transition peak at 15 meV, while atomic H chemically bound to graphene is probed through the typical C-H bending modes in the energy range 80-200 meV.
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PONTIROLI Daniele; CAVALLARI Chiara; MAGNANI Giacomo; MILANESE Chiara; RICCO Mauro and ROLS Stephane. (2017). Inelastic neutron scattering of hydrogen interaction with Pt and Ni decoratedgraphene. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.7-05-474
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