In-Situ XPS Study on Adsorption Reaction of Dimethyl Sulfide on Pd Nanoparticle Surface

M. Morihara; K. Miura; T. Nomoto; S. Yagi

doi:10.1380/ejssnt.2009.298

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In-Situ XPS Study on Adsorption Reaction of Dimethyl Sulfide on Pd Nanoparticle Surface

M. Morihara, K. Miura, T. Nomoto, S. Yagi

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Keywords: in-situ X-ray photoelectron spectroscopy, Dimethyl sulfide, Palladium, Nanoparticle, Gas evaporation method, Sulfur poisoning, Catalyst, Surface chemical reaction

JOURNAL FREE ACCESS

2009 Volume 7 Pages 298-300

DOI https://doi.org/10.1380/ejssnt.2009.298

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Abstract

We have fabricated Pd nanoparticles (NPs) with clean surface and revealed the adsorption reaction of dimethyl sulfide (DMS) on Pd NPs/Ni(111) surface depending on the amount of deposited Pd NPs using in-situ X-ray Photoelectron Spectroscopy (XPS). As a result of XPS, DMS does not decompose on Ni(111) and bulk Pd surface. However, DMS dissociates into methanethiolate (MT; CH₃S-) and atomic S on Pd NPs/Ni(111). It is found that the activity of Pd NPs surface is higher than that of bulk Pd surface. [DOI: 10.1380/ejssnt.2009.298]

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