Temperature programmed desorption of Bi on Ni(100)

Mark E. Jones; John M. Heitzinger; Randall J. Smith; Bruce E. Koel

doi:10.1116/1.576725

Temperature programmed desorption of Bi on Ni(100)

Mark E. Jones, John M. Heitzinger, Randall J. Smith, Bruce E. Koel

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

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 E_d. The value of E_dvaries from 70 kcal mol⁻¹at low Bi coverage to 57 kcal mol⁻¹for monolayer Bi coverage. We discuss the possible role of Bi₂in the desorption process and also report the effect of coadsorbed oxygen on the Bi TPD spectrum and the Bi-Ni interaction.

Original language	English (US)
Pages (from-to)	2512-2516
Number of pages	5
Journal	Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
Volume	8
Issue number	3
DOIs	https://doi.org/10.1116/1.576725
State	Published - May 1990
Externally published	Yes

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films

Access to Document

10.1116/1.576725

Cite this

@article{876f5df1d7744cf4860e0c5767e0e490,

title = "Temperature programmed desorption of Bi on Ni(100)",

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 Ed. The value of Edvaries from 70 kcal mol−1at low Bi coverage to 57 kcal mol−1for monolayer Bi coverage. We discuss the possible role of Bi2in the desorption process and also report the effect of coadsorbed oxygen on the Bi TPD spectrum and the Bi-Ni interaction.",

author = "Jones, {Mark E.} and Heitzinger, {John M.} and Smith, {Randall J.} and Koel, {Bruce E.}",

year = "1990",

month = may,

doi = "10.1116/1.576725",

language = "English (US)",

volume = "8",

pages = "2512--2516",

journal = "Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films",

issn = "0734-2101",

publisher = "AVS Science and Technology Society",

number = "3",

}

TY - JOUR

T1 - Temperature programmed desorption of Bi on Ni(100)

AU - Jones, Mark E.

AU - Heitzinger, John M.

AU - Smith, Randall J.

AU - Koel, Bruce E.

PY - 1990/5

Y1 - 1990/5

N2 - 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 Ed. The value of Edvaries from 70 kcal mol−1at low Bi coverage to 57 kcal mol−1for monolayer Bi coverage. We discuss the possible role of Bi2in the desorption process and also report the effect of coadsorbed oxygen on the Bi TPD spectrum and the Bi-Ni interaction.

AB - 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 Ed. The value of Edvaries from 70 kcal mol−1at low Bi coverage to 57 kcal mol−1for monolayer Bi coverage. We discuss the possible role of Bi2in the desorption process and also report the effect of coadsorbed oxygen on the Bi TPD spectrum and the Bi-Ni interaction.

UR - http://www.scopus.com/inward/record.url?scp=84918184935&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84918184935&partnerID=8YFLogxK

U2 - 10.1116/1.576725

DO - 10.1116/1.576725

M3 - Article

AN - SCOPUS:84918184935

SN - 0734-2101

VL - 8

SP - 2512

EP - 2516

JO - Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films

JF - Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films

IS - 3

ER -

Temperature programmed desorption of Bi on Ni(100)

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this