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Proceedings Paper

Diffuse Reflectance FT-IR Studies At Elevated Temperatures
Author(s): S. L. Hill; K. Krishnan; H. Matsumoto
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Paper Abstract

The study of gas-solid interactions is of much importance for the understanding of the mechanisms of catalytic reactions. Such systems have traditionally been studied by flowing a gas of interest through a heatable, evacuable chamber containing a thin, free-standing pressed pellet of a solid (1). The preparation of so thin a pellet can be rather time-consuming. FT-IR Diffuse Reflectance (DR) is a popular technique for the study of solids (2-4). Little, if any, sample preparation is required and powdered catalysts may directly be analyzed. The evacuable, heatable chamber allows a sample to be studied at any temperature in a specific environment. When compared to the pellet technique, DR has the advantage of a larger sample surface area and, hence, more sites for interaction. The small optical path within the chamber minimizes potential spectral interference by the gas during the gas-solid experiment.

Paper Details

Date Published: 20 December 1985
PDF: 3 pages
Proc. SPIE 0553, Fourier and Computerized Infrared Spectroscopy, (20 December 1985); doi: 10.1117/12.970745
Show Author Affiliations
S. L. Hill, Bio-Rad Digilab Division (United States)
K. Krishnan, Bio-Rad Digilab Division (United States)
H. Matsumoto, Bio-Rad Digilab Division (United States)

Published in SPIE Proceedings Vol. 0553:
Fourier and Computerized Infrared Spectroscopy
David G. Cameron; Jeannette G. Grasselli, Editor(s)

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