Dehydrogenation of isopropanol on a cerium-nickel catalyst

The effect of a cerium additive on the catalytic activity of a 2 wt % Ni/SiO 2 catalyst is studied. It found that under both flow and static conditions the activity of (2 wt % Ni + 0.2 wt % Ce)/SiO 2 catalyst is higher than that of the original sample; the increase in activity results from a sharp increase in the number of active sites. A change in the composition of the surface layer of the catalysts is analyzed by X-ray photoelectron spectroscopy. It was found that the fraction of nickel decreases and the fraction of carbon increases in cerium-containing catalyst. An explanation of the change in the elemental composition of the catalytic active sites of a nickel catalyst in the presence of cerium is proposed on the basis of XPS data and previous quantum chemical calculations. © Pleiades Publishing, Ltd., 2012.

Авторы
Platonov E.A. 1 , Naumkin A.V.2 , Maslakov K.I.3 , Yagodovskii V.D. 1
Редакторы
-
Издательство
-
Номер выпуска
12
Язык
Английский
Страницы
1791-1794
Статус
Опубликовано
Подразделение
-
Номер
-
Том
86
Год
2012
Организации
  • 1 Peoples' Friendship University, Moscow, 117198, Russian Federation
  • 2 Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Moscow, 119991, Russian Federation
  • 3 Kurchatov Institute Research Center, Moscow, 123182, Russian Federation
Ключевые слова
Catalytic activity; Cerium; Isopropanol; X-ray photoelectron spectroscopy
Дата создания
19.10.2018
Дата изменения
19.10.2018
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/2222/