Methane Activation on Cu-Modified ZSM-5 Zeolites Containing Different Cu-Sites Доклады на конференциях
Язык | Английский | ||||
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Тип доклада | Стендовый | ||||
Конференция |
EuropaCat-XIII: 13th European Congress on Catalysis 27-31 авг. 2017 , Florence |
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Реферат:
This work aims to investigate the properties of Cu-containing zeolites with respect to methane activation and conversion to methanol and other valuable chemicals. Particularly, the reactivity of two types of Cu species (isolated Cu2+ cations and small CuO clusters) introduced separately into H-ZSM-5 zeolites has been analyzed using different spectroscopic techniques. The initial state of Cu sites as well as its change during the interaction with methane have been studied with UV-DRS, EPR, IR, XPS methods. On the other hand, the process of methane activation by Cu species has been investigated with solid-state NMR spectroscopy. The kinetics of H/D exchange between methane and Cu-modified zeolites has been monitored and the formation of surface intermediates has been detected with 1H and 13C CP/MAS NMR in situ at elevated temperatures. The reactivity of observed intermediates (methoxy species) formed as the result of methane C–H bond cleavage has been studied.
Библиографическая ссылка:
Gabrienko A.A.
, Arzumanov S.S.
, Yashnik S.A.
, Stepanov A.G.
Methane Activation on Cu-Modified ZSM-5 Zeolites Containing Different Cu-Sites
EuropaCat-XIII: 13th European Congress on Catalysis 27-31 Aug 2017
Methane Activation on Cu-Modified ZSM-5 Zeolites Containing Different Cu-Sites
EuropaCat-XIII: 13th European Congress on Catalysis 27-31 Aug 2017