Effects of hydrogen on ISS analysis of dispersed metal catalysts | Zendy

Diehl J. R. | Zendy; Stencel J. M. | Zendy; Spitler C. A. | Zendy; Makovsky L. E. | Zendy

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Effects of hydrogen on ISS analysis of dispersed metal catalysts

Author(s) -

Diehl J. R.,

Stencel J. M.,

Spitler C. A.,

Makovsky L. E.

Publication year - 1984

Publication title -

surface and interface analysis

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.52

H-Index - 90

eISSN - 1096-9918

pISSN - 0142-2421

DOI - 10.1002/sia.740060204

Subject(s) - calcination , hydrogen , chemisorption , catalysis , metal , x ray photoelectron spectroscopy , inelastic scattering , spectral line , chemistry , analytical chemistry (journal) , scattering , materials science , inorganic chemistry , chemical engineering , metallurgy , physics , organic chemistry , optics , astronomy , engineering

The origin of inelastic scattering in ISS spectra at low energy ratios ( E / E 0 ≤ 0.3) is discussed, and a description of results from ISS and XPS experiments on well‐characterized Co/ZSM‐5 catalysts after calcination in air and reduction in H 2 , H 2 + CO, or CO is given. These treatments show that the chemisorption of hydrogen on highly dispersed metallic Co and Fe causes shielding of the metal from ISS detection. Additionally, the presence of hydrogen, whether in a chemisorbed form or in other forms such as hydrocarbons or H 2 O, affects significantly the intensity of the inelastic scattering.

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