Identification of the intermediate in the water formation reaction on Pt(111)

✍ Scribed by G.E. Mitchell; J.M. White

• Publisher: Elsevier Science
• Year: 1987
• Tongue: English
• Weight: 428 KB
• Volume: 135
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(87)87221-4

✦ Synopsis

Adsorbed hydroxyl (OH(a)) has been identified by HREELS as an intermediate in the reaction of Hz(g) +O(a)+H,O(a) on Pt( 111). This OH(a) is different from the product of the reaction of water with adsorbed oxygen atoms which also occurs on Pt(ll1). Adsorbed water made by reaction of Hz(g) +0(a) has a HREEL spectrum different from that of water adsorbed from gas phase H,O and this is explained in terms of a difference in binding geometry for the two cases. Reaction generated water does not readily tilt to form hydrogen bonds.