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Characterization of the Interaction of Hydrogen with Iridium Clusters in Zeolites by Inelastic Neutron Scattering Spectroscopy

Published online by Cambridge University Press:  15 February 2011

J.M. Nicol ,
T.J. Udovic ,
R.R. Cavanagh ,
Z. Xu ,
S. Kawi ,
T. Mure  and
B.C. Gates
J.M. Nicol
Affiliation:
National Institute of Standards and Technology, Gaithersburg, MD 20899
T.J. Udovic
Affiliation:
National Institute of Standards and Technology, Gaithersburg, MD 20899
R.R. Cavanagh
Affiliation:
National Institute of Standards and Technology, Gaithersburg, MD 20899
Z. Xu
Affiliation:
Department of Chemical Engineering, University of Delaware, Newark, DE 19716 and Department of Chemical Engineering and Materials Science, University of California, Davis, CA 95616
S. Kawi
Affiliation:
Department of Chemical Engineering, University of Delaware, Newark, DE 19716 and Department of Chemical Engineering and Materials Science, University of California, Davis, CA 95616
T. Mure
Affiliation:
Department of Chemical Engineering, University of Delaware, Newark, DE 19716 and Department of Chemical Engineering and Materials Science, University of California, Davis, CA 95616
B.C. Gates
Affiliation:
Department of Chemical Engineering, University of Delaware, Newark, DE 19716 and Department of Chemical Engineering and Materials Science, University of California, Davis, CA 95616
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Abstract

Incoherent inelastic neutron scattering (IINS) measurements of hydrogen bound to Ir6 clusters in the nanoscale pores of zeolite NaY and similar clusters in KL zeolite are reported. On the basis of hydrogen uptake measurements and the observation of peaks in the IINS spectra, we infer that hydrogen is bound to the metal nanoclusters in the zeolite pores. The HINS data for both zeolites are similar and consistent with the presence of IrH2 species.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 351: Symposium V – Molecularly Designed Ultrafine/Nanostructured Materials , 1994 , 189
Copyright
Copyright © Materials Research Society 1994

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References

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