 |
Surface Chemistry of Tribochemical Reactions: Molecular Beam Experiments
Lara-Romero, J., Maya-Yescas, R., Rico-Cerda, J. L., Rivera-Rojas, J. L., Chinas Castillo, F., Kaltchev, M. and Tysoe, W. T. Surface Chemistry of Tribochemical Reactions: Molecular Beam Experiments Chemical Papers, Vol.59, No. 6b, 2005, 481-486
|
|
|
Document type:
|
Článok z časopisu / Journal Article |
|
Collection:
|
Chemical papers
|
| |
| Attached Files |
| Name |
Description |
MIMEType |
Size |
Downloads |
n596ba481.pdf
|
596ba481.pdf |
application/pdf |
190.68KB |
0 |
| Author(s) |
Lara-Romero, J.
Maya-Yescas, R.
Rico-Cerda, J. L.
Rivera-Rojas, J. L.
Chinas Castillo, F.
Kaltchev, M.
Tysoe, W. T.
|
| Title |
Surface Chemistry of Tribochemical Reactions: Molecular Beam Experiments
|
| Journal name |
Chemical Papers
|
| Publication date |
2005
|
| Year available |
2005
|
| Volume number |
59
|
| Issue number |
6b
|
| ISSN |
0366-6352
|
| Start page |
481
|
| End page |
486
|
| Place of publication |
Poland
|
| Publisher |
Versita
|
| Collection year |
2005
|
| Language |
english
|
| Subject |
290000 Engineering and Technology
290600 Chemical Engineering
|
| Abstract/Summary |
The thermal decomposition of model chlorine- and sulfur-containing extreme-pressure lubricant additives on clean iron was studied in ultrahigh vacuum conditions using molecular beam strategies. Methylene chloride and chloroform react to deposit a solid film consisting of FeCl2 and carbon, and evolve only hydrogen into the gas phase. No gas-phase products and less carbon on the surface are detected in the case of carbon tetrachloride. Dimethyl and diethyl disulfide react on clean iron to deposit a saturated sulfur plus carbon layer at low temperatures (∼ 600 K) and an iron sulfide film onto an Fe + C underlayer at higher temperatures (∼ 950 K). Methane is the only gas-phase product when dimethyl disulfide reacts with iron. Ethylene and hydrogen are detected when diethyl disulfide is used.
|
|
|
|
