We report evidence for precursor dynamics in the dissociative chemisorption of Dz on Ni( 100) partially covered by CO. Effcient energy transfer from incident Dz to surface CO and the transient bonding of Dz to CO-modified Ni sites are invoked to explain the significant role played by precursor speci
Studies on the dissociative chemisorption of O2 on NI(100) surface
โ Scribed by Badal C. Khanra; Swapan K. Saha
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- English
- Weight
- 300 KB
- Volume
- 95
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
The London-Eyring-Polanyi-Sato method has been used to study senti-empirically the dissociative chemisorption of 02 on the Ni (100) surface. Several dissociation paths are considered. The path leading to the state of maxinmm binding energy corresponds to dissociation across a top position, the dissociated particles being ultinmtely chemisorbed at the centre hollow sites. No path is found to require activation energy for dissociation.
๐ SIMILAR VOLUMES
By using molecular beams we determine two specitic scaling laws for the dissociative sticking of O2 on Cu( 100). It is shown that the interaction process involves transfer of mechanical energy which is characteristic of a classical binary collision. It is demonstrated that the transfer of mechanical
We have measured the dissociative chemisorption probability of D2 on Pt ( I 1 I ) as a function of molecular oxygen coverage and have found that the dissociation probability decreases linearly with O2 coverage. The results suggest that O2 poisons the chemisorption sterically by blocking approximatel