Реферат: NO+CO and NO+H2 catalytic reactions on Pt(100) proceed in non-​homogeneous surface structure conditions with nonuniform distribution of adsorbed species. Adsorption of reactants on a more stable reconstructed Pt(100)​-​hex surface lifts a back hex 1x1 reconstruction forming 1x1-​islands satd. with reactant-​related species. The islands are surrounded by the clean hex phase. Dynamical effects such as kinetic oscillations, concn. waves, and "surface explosions" obsd. for these reactions arise from this complex behavior. To gain a more penetrating insight into the mechanism of these phenomena, activation energies of the reactions in coadsorption layers were measured. Exptl. results demonstrate significant difference in activation energy of the NOads+COads and NOads+H2 reactions, 130 and 40 kJ​/mol resp. This distinction is supposed to be explained by the difference in morphol. of (NOads+COads) and (NOads+Hads) coadsorption layers formed on the surface.

Библиографическая ссылка: Vovk E.I. , Smirnov M.Y.
Apparent Activation Energy Difference in NO+CO and NO+H2 Reactions on the Pt(100) ​Surface
В сборнике Abstracts of Papers, 222nd ACS National Meeting, Chicago, IL, United States, August 26-30, 2001. 2001. – C.U334-U335. WOS CAPlus

Даты:

Опубликована в печати:

1 авг. 2001 г.

Идентификаторы БД:

Web of science:	WOS:000170690001731
Chemical Abstracts:	2001:638180

Цитирование в БД: Пока нет цитирований