1. Ultra-fast diffusion of hydrogen in a novel mesoporous N-doped carbon
- Author
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Thomas C. Hansen, Michael Marek Koza, Peter Fouquet, Emanuel Bahn, Stéphanie Pouget, Irene Calvo-Almazán, Alain Lapp, Vitalii Kuznetsov, Paul F. Henry, Mohamed Zbiri, Monica Mesa, and Leidy A. Hoyos Giraldo
- Subjects
Materials science ,Diffusion barrier ,Hydrogen ,Diffusion ,chemistry.chemical_element ,Sorption ,02 engineering and technology ,General Chemistry ,Neutron scattering ,010402 general chemistry ,021001 nanoscience & nanotechnology ,01 natural sciences ,0104 chemical sciences ,chemistry ,Chemical engineering ,General Materials Science ,Graphite ,0210 nano-technology ,Mesoporous material ,Carbon - Abstract
The diffusional behaviour of H2 adsorbed in a novel mesoporous N-doped carbon material and on exfoliated graphite has been studied with quasi-elastic neutron scattering. While the activation energies for diffusion obtained for exfoliated graphite was in line with prior results, H2 in the mesoporous carbon showed an exceptionally low diffusion barrier and behaved qualitatively like liquid hydrogen. Complementary results from neutron and X-ray diffraction as well as from isothermal nitrogen sorption studies provide a full characterisation of this novel mesoporous carbon.
- Published
- 2020
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