The Adsorption of Nitric Oxide and Thiophene on Platinum Single Crystals
The adsorption of nitric oxide on Pt(210), Pt(100), and Pt(111) was studied using X-ray photoelectron (XPS) and Auger electron (AES) spectroscopies. Nitric oxide was found to molecularly adsorb on Pt(210) at room temperature but to dissociate upon heating to 450 K. The same behavior was noted on Pt(100). Pt(111) was considerably less active as nitric oxide adsorbed at room temperature desorbed when the crystal was heated to 380 K. These observations and those of other authors can be explained by an orbital symmetry model. The adsorption of carbon monoxide and oxygen on Pt(210) was also investigated.
University of Illinois - Urbana-Champaign
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University of Illinois at Urbana-Champaign