FTIR Studies of CO Chemisorption and Reactivity on Rh/SiO2 Catalyst Promoted by Niobium Oxide Научная публикация
Журнал |
Journal of Molecular Catalysis (Continued after 1994 as Journal of Molecular Catalysis A: Chemical and Journal of Molecular Catalysis B: Enzymatic)
ISSN: 0304-5102 |
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Вых. Данные | Год: 1994, Том: 92, Номер: 2, Страницы: 217-233 Страниц : 17 DOI: 10.1016/0304-5102(94)00072-7 | ||||
Ключевые слова | Adsorption, Carbon monoxide, FTIR, Hydrogenation, Niobium oxide, Promoter, Rhodium, Silica, Supported catalysts | ||||
Авторы |
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Организации |
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Реферат:
(Rh + Nb)/SiO2 catalysts were obtained by anchoring of nanometer size Rh particles on surface low-valent Nbn + ions. These materials exhibit the following specific features compared to Rh/SiO2: a low Rh surface coverage by chemisorbed hydrogen and carbon oxide; a high-frequency shift of linear CO absorption band and appearance of two absorption bands of a C- and O-bonded CO at 1704 and 1652 cm−1. On exposure to H2, the stability of surface carbonyls increases in the sequence: Rh-CO-Nbn + < Rh-CO ≤ Rh2(CO) < Rh+(CO)2. The possible role of C- and O-bonded CO complexes in the conversion of syngas on supported rhodium catalysts promoted by transition element oxides is discussed.
Библиографическая ссылка:
Alekseev O.S.
, Beutel T.
, Paukshtis E.A.
, Ryndin Y.A.
, Likholobov V.A.
, Knözinger H.
FTIR Studies of CO Chemisorption and Reactivity on Rh/SiO2 Catalyst Promoted by Niobium Oxide
Journal of Molecular Catalysis (Continued after 1994 as Journal of Molecular Catalysis A: Chemical and Journal of Molecular Catalysis B: Enzymatic). 1994. V.92. N2. P.217-233. DOI: 10.1016/0304-5102(94)00072-7 WOS Scopus РИНЦ
FTIR Studies of CO Chemisorption and Reactivity on Rh/SiO2 Catalyst Promoted by Niobium Oxide
Journal of Molecular Catalysis (Continued after 1994 as Journal of Molecular Catalysis A: Chemical and Journal of Molecular Catalysis B: Enzymatic). 1994. V.92. N2. P.217-233. DOI: 10.1016/0304-5102(94)00072-7 WOS Scopus РИНЦ
Даты:
Поступила в редакцию: | 22 февр. 1994 г. |
Принята к публикации: | 15 апр. 1994 г. |
Опубликована в печати: | 30 авг. 1994 г. |
Опубликована online: | 2 окт. 2001 г. |
Идентификаторы БД:
Web of science | WOS:A1994PE39100011 |
Scopus | 2-s2.0-0028481909 |
РИНЦ | 31611319 |
Chemical Abstracts | 1994:604758 |
Chemical Abstracts (print) | 121:204758 |
OpenAlex | W1990219048 |