URI | http://purl.tuc.gr/dl/dias/F28A244A-BEE7-476D-8536-455470094415 | - |
Αναγνωριστικό | http://www.sciencedirect.com/science/article/pii/S0167299108642779 | - |
Αναγνωριστικό | https://doi.org/10.1016/S0167-2991(08)64277-9 | - |
Γλώσσα | en | - |
Μέγεθος | 4 pages | en |
Τίτλος | Oxidative coupling of methane to C2 hydrocarbons over doped titania catalysts | en |
Δημιουργός | Papageorgiou, Demetris | en |
Δημιουργός | Vamvouka Despoina | en |
Δημιουργός | Βαμβουκα Δεσποινα | el |
Δημιουργός | Verykios, Xenophon E | en |
Εκδότης | Elsevier | en |
Περίληψη | The performance of altervalent doped TiO2 catalysts under oxidative coupling of methane conditions is investigated. It is shown that higher-valence doping (W6+, Nb5+, Ta5+) of TiO2 enhances significantly methane conversion activity and reduces selectivity to nearly zero levels. On the other hand, doping TiO2 with lower valence cations (Li+, Zn+2) has a small influence on activity but results in a significant enhancement of selectivity. These results are attributed to alterations of the bulk electronic structure of the semiconductivity catalysts as well as to alterations of surface parameters such as acidity/basicity characteristics, oxygen ion mobility and lattice oxygen reactivity. | en |
Τύπος | Peer-Reviewed Journal Publication | en |
Τύπος | Δημοσίευση σε Περιοδικό με Κριτές | el |
Άδεια Χρήσης | http://creativecommons.org/licenses/by/4.0/ | en |
Ημερομηνία | 2015-10-26 | - |
Ημερομηνία Δημοσίευσης | 1993 | - |
Θεματική Κατηγορία | Methane | en |
Θεματική Κατηγορία | Catalysts | en |
Βιβλιογραφική Αναφορά | D. Papageorgiou, D. Vamvouka and X. E. Verykios, "Oxidative coupling of methane to C2 hydrocarbons over doped titania catalysts", Stud. Surf. Sci. Catal., vol. 75, pp. 2269-2272, 1993. doi:10.1016/S0167-2991(08)64277-9 | en |