Mechanism of Ethanol Steam Reforming over Pt/(Ni+Ru) Promoted Oxides by FTIRS in situ
Доклады на конференциях
| Язык |
Английский |
| Тип доклада |
Устный |
| Конференция |
EuropaCat-XII: 12th European Congress on Catalysis “Catalysis: Balancing the use of fossil and renewable resources”
30 авг. - 4 сент. 2015
,
Международный конгресс, Казань
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| Авторы |
Садыков Владислав Александрович
1,2
, Чуб Ольга Владимировна
1
, Чесалов Юрий Александрович
1
, Мезенцева Наталья Васильевна
1,2
, Павлова Светлана Николаевна
1
, Арапова Марина Васильевна
1,3
, Roger Anne-Cecile
3
, Пархоменко Ксения Викторовна
3
, van Veen Andre C.
4
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| Организации |
| 1 |
Институт катализа им. Г.К. Борескова СО РАН
|
| 2 |
Новосибирский национальный исследовательский государственный университет
|
| 3 |
University of Strasbourg
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| 4 |
University of Warwick
|
|
Mechanism of ethanol steam reforming into syngas over Pt/ Pr0.15Sm0.15Ce0.35Zr0.35O2 and
10wt.% LaNi0.95Ru0.05O3/Mg-Al2O3 catalysts was studied by in situ FTIRS. Surface species (ethoxy, adsorbed ethanol, acetaldehyde, acetate) were identified and their thermal stability and reactivity were estimated. Transformation of ethoxy species by dehydrogenation is a fast step, while the ratedetermining stage is the C-C bond rupture in thus formed acetaldehyde at metal sites. Acetate species are spectators, while transformation of ethoxy species on acid sites of alumina-supported catalyst produces C2H4 and (C2H5)2O via dehydration route.