Catalytic Reduction of Nitrate and Nitrite Ions by Hydrogen: Investigation of the Reaction Mechanism over Pd and Pd–Cu Catalysts
Научная публикация
| Общее |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Оригинальная
|
| Журнал |
Journal of Molecular Catalysis A: Chemical
ISSN: 1381-1169
|
| Вых. Данные |
Год: 2000,
Том: 158,
Номер: 1,
Страницы: 237-249
Страниц
: 13
DOI:
10.1016/S1381-1169(00)00070-4
|
| Ключевые слова |
Catalytic reduction, Metal catalyst, Pd, Pd-Cu |
| Авторы |
Ilʹinich O.M.
1
,
Nosova L.V.
1
,
Gorodetskii V.V.
1
,
Ivanov V.P.
1
,
Trukhan S.N.
1
,
Gribov E.N.
1
,
Bogdanov S.V.
1
,
Cuperus F.
2
|
| Организации |
| 1 |
Институт катализа им. Г.К. Борескова СО РАН
|
| 2 |
Rijksuniversiteit Groningen
|
|
Информация о финансировании (2)
|
1
|
Российский фонд фундаментальных исследований
|
99-03-32433
|
|
2
|
Nederlandse Organisatie voor Wetenschappelijk Onderzoek
|
047-010-100-96
|
The catalytic behavior of mono- and bimetallic catalysts with Pd and/or Cu supported over γ-Al2O3 in the reduction of aqueous nitrate and nitrite ions by hydrogen was investigated. The composition of the supported metal catalysts was analysed using secondary ion mass spectroscopy (SIMS) and X-ray diffraction (XRD) techniques. Surface enrichment of the bimetallic Pd–Cu particles in copper was revealed. Interactions of NO (possible intermediate in reduction of nitrate and nitrite ions) with H2 over Pd were studied by thermal desorption spectroscopy (TDS) under high-vacuum conditions. The molecular mechanism of NO3− and NO2− reduction by H2 as well as the role of Pd and Cu active sites are discussed.