Dihydrogen in zeolite CaXAn inelastic neutron scattering study

AJ Ramirez-Cuesta; PCH Mitchell; DK Ross; PA Georgiev; Paul Anderson; HW Langmi; David Book

doi:10.1016/j.allcom.2006.12.030

Dihydrogen in zeolite CaXAn inelastic neutron scattering study

AJ Ramirez-Cuesta, PCH Mitchell, DK Ross, PA Georgiev, Paul Anderson, HW Langmi, David Book

Research output: Contribution to journal › Article

Abstract

We report an inelastic neutron scattering (INS) study of the rotational-vibrational spectrum of dihydrogen sorbed by zeolite CaX. In the low energy (<200 cm(-1)) INS spectrum of adsorbed H-2 we observe the rotational-vibrational spectrum of H-2, where the vibration is that of the H-2 molecule against the binding site (i.e. H-2-X, not H-H). We have observed for the first time the vibrational overtones of the hydrogen molecule against the adsorption surface up to sixth order. These vibrations are usually forbidden in INS spectroscopy because of the selection rules imposed by the spin flip event required. In our case we are able to observe such a vibration because the rotational transition J(1

Original language	English
Journal	Journal of Alloys and Compounds
DOIs	https://doi.org/10.1016/j.allcom.2006.12.030
Publication status	Published - 1 Jan 2007

Keywords

hydrogen storage materials
zeolites
inelastic neutron scattering spectrocopy

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10.1016/j.allcom.2006.12.030

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title = "Dihydrogen in zeolite CaXAn inelastic neutron scattering study",

abstract = "We report an inelastic neutron scattering (INS) study of the rotational-vibrational spectrum of dihydrogen sorbed by zeolite CaX. In the low energy (<200 cm(-1)) INS spectrum of adsorbed H-2 we observe the rotational-vibrational spectrum of H-2, where the vibration is that of the H-2 molecule against the binding site (i.e. H-2-X, not H-H). We have observed for the first time the vibrational overtones of the hydrogen molecule against the adsorption surface up to sixth order. These vibrations are usually forbidden in INS spectroscopy because of the selection rules imposed by the spin flip event required. In our case we are able to observe such a vibration because the rotational transition J(1 ",

keywords = "hydrogen storage materials, zeolites, inelastic neutron scattering spectrocopy",

author = "AJ Ramirez-Cuesta and PCH Mitchell and DK Ross and PA Georgiev and Paul Anderson and HW Langmi and David Book",

year = "2007",

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doi = "10.1016/j.allcom.2006.12.030",

language = "English",

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T1 - Dihydrogen in zeolite CaXAn inelastic neutron scattering study

AU - Ramirez-Cuesta, AJ

AU - Mitchell, PCH

AU - Ross, DK

AU - Georgiev, PA

AU - Anderson, Paul

AU - Langmi, HW

AU - Book, David

PY - 2007/1/1

Y1 - 2007/1/1

N2 - We report an inelastic neutron scattering (INS) study of the rotational-vibrational spectrum of dihydrogen sorbed by zeolite CaX. In the low energy (<200 cm(-1)) INS spectrum of adsorbed H-2 we observe the rotational-vibrational spectrum of H-2, where the vibration is that of the H-2 molecule against the binding site (i.e. H-2-X, not H-H). We have observed for the first time the vibrational overtones of the hydrogen molecule against the adsorption surface up to sixth order. These vibrations are usually forbidden in INS spectroscopy because of the selection rules imposed by the spin flip event required. In our case we are able to observe such a vibration because the rotational transition J(1

AB - We report an inelastic neutron scattering (INS) study of the rotational-vibrational spectrum of dihydrogen sorbed by zeolite CaX. In the low energy (<200 cm(-1)) INS spectrum of adsorbed H-2 we observe the rotational-vibrational spectrum of H-2, where the vibration is that of the H-2 molecule against the binding site (i.e. H-2-X, not H-H). We have observed for the first time the vibrational overtones of the hydrogen molecule against the adsorption surface up to sixth order. These vibrations are usually forbidden in INS spectroscopy because of the selection rules imposed by the spin flip event required. In our case we are able to observe such a vibration because the rotational transition J(1

KW - hydrogen storage materials

KW - zeolites

KW - inelastic neutron scattering spectrocopy

U2 - 10.1016/j.allcom.2006.12.030

DO - 10.1016/j.allcom.2006.12.030

M3 - Article

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Dihydrogen in zeolite CaXAn inelastic neutron scattering study

Abstract

Keywords

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