Реферат: The adsorption, desorption and decomposition of CO on Rh surfaces have been investigated using field emission microscopy and thermal desorption spectroscopy. Thermal dissociation of CO cannot be detected on clean Rh surfaces at pressures up to 10−1 Torr and temperatures below 1000 K. This holds also for atomically rough surfaces like (210). CO dissociation can be promoted under the influence of an electron beam directed to the surface, a high electric field in the presence of CO in the gas phase and by means of discharge techniques. The growth of crystallites formed by CO dissociation and the diffusion of carbon into the bulk has been followed as a function of temperature and surface structure. The tip regions around (110) are very active in these processes. Carbon crystallites on these surfaces disappear around 1000 K by diffusion into the lattice whereas crystallites present around (311) surfaces persist up to 1150 K. The results are discussed in relation to the activity of Rh in CO/H2 reactions.

Библиографическая ссылка: Gorodetskii V.V. , Nieuwenhuys B.E.
Chemisorption and Dissociation of Carbon Monoxide on Rhodium Surfaces
Surface Science. 1981. V.105. N1. P.299-312. DOI: 10.1016/0039-6028(81)90163-1 WOS Scopus РИНЦ CAPlusCA OpenAlex Sciact

Даты:

Поступила в редакцию:	29 авг. 1980 г.
Принята к публикации:	7 нояб. 1980 г.
Опубликована в печати:	1 апр. 1981 г.
Опубликована online:	18 сент. 2002 г.

Идентификаторы БД:

Web of science:	WOS:A1981LN54700024
Scopus:	2-s2.0-0000403312
РИНЦ:	31115663
Chemical Abstracts:	1981:430795
Chemical Abstracts (print):	95:30795
OpenAlex:	W2090576038
Sciact:	29375

Цитирование в БД:

БД	Цитирований
OpenAlex	52

Альметрики: