Vibrational energy exchange between an oxygen molecule and an adsorbed hydrogen atom

✍ Scribed by H.K. Shin

• Publisher: Elsevier Science
• Year: 1991
• Tongue: English
• Weight: 695 KB
• Volume: 183
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(91)85113-b

✦ Synopsis

The dynamics of collision between an oxygen molecule and a hydrogen atom adsorbed on a metal surface has been studied. Time evolution of vibrational energies and bond vibrations has been studied in classical mechanics. The frequency difference between the colliding oscillators has been shown to vary with time during the collision, and the interaction system becomes temporarily a near-resonant case due to the collision-induced distortion. A semiclassical procedure has been developed to calculate VV energy exchange probabilities. We find that this procedure leads to a well-defined oscillatory probability representing an efficient VV energy exchange between the colliding oscillators. In addition, we find the formation of peroxyl radicals when there is a suffkiently strong attractive interaction between the collision partners.