Confirming effects of pore geometry on H2 densification for hydrogen storage
Neutron scattering is one of the few experimental techniques that can directly determine the state of confined H2 molecules in microporous solids. We recently reported the experimental evidence of an existence of the solid-like H2 in optimally sized pores based on the correlation of inelastic neutron scattering (INS) measurements with volumetric gas sorption experiments at 77 K (above the liquid-vapour critical temperature of bulk H2). This confirmed the role of pore dimension in compressing and densifying the adsorbed hydrogen. In order to understand this phenomenon further, the effects of pore geometry of such microporous materials on the H2 densification needed to be explored. In this proposal we seek to elucidate the effects of pore geometry (i.e. amorphous, cylindrical and slit pores) on hydrogen densification in nanoporous carbon materials for adsorptive hydrogen storage.
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TING Valeska; N Bimbo; MAYS Timothy; ROLS Stephane; Lui R. Terry and Mi Tian. (2017). Confirming effects of pore geometry on H2 densification for hydrogen storage. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.7-05-468