The NO + H2 reaction on Pt(100): steady state and oscillatory kinetics Научная публикация
| Журнал |
Surface Science
ISSN: 0039-6028 |
|---|---|
| Вых. Данные | Год: 1992, Том: 264, Номер: 1–2, Страницы: 157-170 Страниц : 14 DOI: 10.1016/0039-6028(92)90174-5 |
| Авторы |
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| Организации |
Реферат:
The reaction of NO + H2 on Pt(100) was studied in the 10−6 mbar range between 300 and 800 K with mass spectrometry, work-function measurements, and video LEED. Both multiple steady states and kinetic oscillations were found. The principal reaction products were N2, H2O and NH3, and the activity and selectivity of the reaction were seen to depend on the partial pressure ratio on the surface temperature, and on the degree of surface reconstruction. Whereas the 1 × 1 surface was active for both N2 and NH3 formation, a well-annealed hex phase exhibited a low catalytic activity. The occurrence of defects during the 1 × 1| hex transition was shown to lead to enhanced N2 formation. At low ratios, N2 for while for large ratios, NH3 production was enhanced. Kinetic oscillations, as determined from variations in the and work-function signals, were found between 430 and 445 K.
Библиографическая ссылка:
Slinko M.
, Fink T.
, Löher T.
, Madden H.H.
, Lombardo S.J.
, Imbihl R.
, Ertl G.
The NO + H2 reaction on Pt(100): steady state and oscillatory kinetics
Surface Science. 1992. V.264. N1–2. P.157-170. DOI: 10.1016/0039-6028(92)90174-5 Scopus CAPlusCA OpenAlex
The NO + H2 reaction on Pt(100): steady state and oscillatory kinetics
Surface Science. 1992. V.264. N1–2. P.157-170. DOI: 10.1016/0039-6028(92)90174-5 Scopus CAPlusCA OpenAlex
Идентификаторы БД:
| Scopus: | 2-s2.0-0026834709 |
| Chemical Abstracts: | 1992:182319 |
| Chemical Abstracts (print): | 116:182319 |
| OpenAlex: | W2034792020 |