Hydrogen storage mechanisms in disordered nanoporous carbons at high pressures
In this proposal, we plan to investigate the high-pressure (0-100 bar) physisorption behavior of hydrogen (H2), deuterium (D2) and a zero scattering length density H2/D2 mixture under cryogenic temperatures (77-97 K) in two disordered carbon systems with different hierarchical pore structures. This will be done by in-situ Small-Angle Neutron Scattering (SANS) at D16 combined with a gas sorption analyzer provided by the ILL. SANS is considered one of the most effective techniques to study in detail the arrangement of guest atoms, molecules or ions in a confined nanopore space. The contrast variation experiment will allow us to separate local contrast effects and pore volume changes. The combination of SANS, gas adsorption analysis and carbon structure modeling will help to identify the role of H2 confinement and density properties in nanopores.
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STOCK Sebastian; DEME Bruno; KOSTOGLOU Nikolaos; Christian Mitterer; PARIS Oskar and SEYFFERTITZ Malina. (2021). Hydrogen storage mechanisms in disordered nanoporous carbons at high pressures. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.1-04-235
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