Reinforced Nickel and Nickel–Platinum Catalysts for Performing the Thermally Coupled Reactions
of Methane Steam Reforming and Hydrogen Oxidation
Научная публикация
Общее |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Переводная
|
Журнал |
Kinetics and Catalysis
ISSN: 0023-1584
, E-ISSN: 1608-3210
|
Вых. Данные |
Год: 2007,
Том: 48,
Номер: 1,
Страницы: 116-124
Страниц
: 9
DOI:
10.1134/S0023158407010156
|
Авторы |
Danilova M.M.
1
,
Sabirova Z.A.
1
,
Kuzin N.A.
1
,
Kirillov V.A.
1
,
Rudina N.A.
1
,
Moroz E.M.
1
,
Boronin A.I.
1
|
Организации |
1 |
Институт катализа им. Г.К. Борескова СО РАН
|
|
Информация о финансировании (1)
1
|
Международный научно-технический центр
|
2291
|
The formation of composite nickel and nickel–platinum catalysts reinforced with steel gauze was
studied. The catalysts were prepared by sintering powdered nickel metal and a supported nickel catalyst
(GIAP-3 or NIAP-18) with a chromium oxide additive in the case of nickel-containing composite catalysts or
by sintering powdered nickel, aluminum, and a supported platinum catalyst in the case of catalysts containing
nickel–platinum. With the use of electron microscopy, mercury porosimetry, and X-ray electron probe
microanalysis, it was found that a metal matrix, in the pores of which supported catalyst particles were distributed,
was formed in the composite catalysts. The reinforced nickel catalysts prepared were active in the reaction
of methane steam reforming, and the catalysts containing nickel–platinum were active in the reaction of hydrogen
oxidation. An increase in the activity of reinforced nickel catalysts in the course of the reaction was found.
It is believed that the increase of the activity was due to the reduction of nickel oxide from an inactive difficultto-reduce
oxide film containing nickel and chromium oxides under the action of the reaction atmosphere.