Bibliographic Citation
| Document | For copies of Journal Articles, please contact the Publisher or your local public or university library and refer to the information in the Resource Relation field. For copies of other documents, please see the Availability, Publisher, Research Organization, Resource Relation and/or Author (affiliation information) fields and/or Document Availability. |
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| Title | Temperature programmed desorption of Bi on Ni(100) |
| Creator/Author | Jones, M.E. ; Heitzinger, J.M. ; Smith, R.J. ; Koel, B.E. (Department of Chemistry and Biochemistry, University of Colorado, Boulder, CO (USA) Cooperative Institute for Research in Environmental Science, University of Colorado, Boulder, CO (USA)) |
| Publication Date | 1990 May 01 |
| OSTI Identifier | OSTI ID: 6788039 |
| Other Number(s) | ISSN0734-2101; CODEN: JVTAD |
| Resource Type | Journal Article |
| Resource Relation | Journal of Vacuum Science and Technology, A (Vacuum, Surfaces and Films) ; Vol/Issue: 8:3; DOE Project |
| Subject | 360104 -- Metals & Alloys-- Physical Properties; BISMUTH-- DESORPTION;NICKEL-- SORPTIVE PROPERTIES; ACTIVATION ENERGY;ADSORPTION;DIMERS;TEMPERATURE EFFECTS |
| Related Subject | ELEMENTS;ENERGY;METALS;SORPTION;SURFACE PROPERTIES;TRANSITION ELEMENTS |
| Description/Abstract | The temperature programmed desorption (TPD) spectra of Bi from Ni(100) are characteized by a large shift of the desorption maximum to lower temperatures with increasing coverage.^Similar behavior is observed for the desorption of Bi from other metal substrates.^Analysis of the desorption of Bi from Ni(100) was performed to determine the kinetic order of desorption and the energetics of the Bi--Ni interaction.^We find that Bi desorption is described well by first-order kinetics with a strong coverage dependence of the activation energy of desorption {ital E}{sub {ital d}}.^The value of {ital E}{sub {ital d}} varies from 70 kcal mol{sup {minus}1} at low Bi coverage to 57 kcal mol{sup {minus}1} for monolayer Bi coverage.^We discuss the possible role of Bi{sub 2} in the desorption process and also report the effect of coadsorbed oxygen on the Bi TPD spectrum and the Bi--Ni interaction. |
| Country of Publication | United States |
| Language | English |
| Format | Pages: 2512-2516 |
| System Entry Date | 2001 May 13 |
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