Neutron spectroscopy on chemically synthesized metal-decorated graphene
The study of the hydrogen interaction, atomic and molecular, is of great importance to evaluate the relevance of carbon nanostructures as hydrogen-storage device for future applications. In particular many recent theoretical works suggest that graphene could meet the stringent restrictions imposed by US-DOE, when decorated with alkali, alkali earth or transition metals ions. Recently, we managed to produce gram-scale bulk defective graphene by chemical methods and to decorate it with Lithium and Nickel atoms. We already performed some preliminary neutron scattering experiments but a clear comprehension of hydrogen uptake mechanism and the interaction between the hydrogen molecules and the modified graphene planes is still missing. The aim of the proposed experiment is to get a deeper insight into the dynamical properties of Li- and Ni-decorated graphene and investigate their interaction with hydrogen. For this purpose we require 7 days on the thermal-neutron Time-of-Flight IN4 spectrometer and 6 days on the hot-neutron two-axis Lagrange spectrometer at the ILL.
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CAVALLARI Chiara; ARAMINI Matteo; BRUNELLI Michela; Mattia Gaboardi; JIMENEZ RUIZ Monica; PONTIROLI Daniele; RICCO Mauro and ROLS Stephane. (2013). Neutron spectroscopy on chemically synthesized metal-decorated graphene. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.7-04-126
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