Related Experiment Video
Updated: Aug 29, 2026

Synthesis and Testing of Supported Pt-Cu Solid Solution Nanoparticle Catalysts for Propane Dehydrogenation
Published on: July 18, 2017
XPS study of molybdenum sulfide catalyst exposed to CO and H2
Jamshid Iranmahboob1, Steven D Gardner, Hossein Toghiani
1University of Connecticut, Advanced Technology Institute, Engineering II Bldg., U-139, Storrs, CT 06269-3139, USA. jamshidim@hotmail.com
Abstract:
Amorphous MoS(3) (air-dried precipitate), crystalline MoS(2) (made in the laboratory under nitrogenous atmosphere), and commercial molybdenum disulfide catalysts have been investigated by X-ray photoelectron spectroscopy (XPS). The chemical species present on the surface and the S/Mo atomic ratios of laboratory catalysts were compared to those present on a commercial molybdenum disulfide catalyst before and after treatment with CO and H(2). Pretreatment of MoS(2) with CO followed by H(2) showed that CO was adsorbed on the surface with no change in the chemical oxidation state of Mo and S. However, the results indicated that CO was not adsorbed when the sequence of gas exposures was reversed.
More Related Videos
Related Concept Videos
Heterogeneous Catalysis
Preparation and Reactions of Sulfides
Catalysis

