Catalytic properties of Ru-mordenite for NO reduction

0097400 - ÚACH 2008 RIV NL eng J - Článek v odborném periodiku
Labhsetwar, NK. - Minamino, H. - Mukherjee, M. - Mitsuhashi, T. - Rayalu, S. - Dhakad, M. - Haneda, H. - Šubrt, Jan - Devotta, S.
Catalytic properties of Ru-mordenite for NO reduction.
[Katalytické vlastnosti Ru-mordenitu pro redukci NO.]
Journal of Molecular Catalysis A-Chemical. Roč. 261, č. 2 (2007), s. 213-217. ISSN 1381-1169
Grant ostatní: CSIR(IN) CORE(08)
Výzkumný záměr: CEZ:AV0Z40320502
Klíčová slova: NO reduction * catalyst * Ru-zeolite
Kód oboru RIV: CA - Anorganická chemie
Impakt faktor: 2.707, rok: 2007

The reduction of NO by CO over H and Na forms of Ru exchanged mordenite has been studied with ruthenium content of 0.2, 1 and 3 wt.percent. The catalysts were characterized with respect to X-ray diffraction, BET surface area, temperature programmed oxidation, and temperature programmed desorption of ammonia. These catalysts have been evaluated for their activity for NO-CO reaction using a steady state gas laboratory evaluation assembly. The catalysts show high activity for NO reduction and almost 100 percent conversion of NO to N-2 was observed below 400 degrees C. The activity was found to be a factor of ruthenium content, however, Ru-mordenite in Na form was observed to be relatively more active than Ru-mordenite in H form, probably due to the electron donation from sodium to ruthenium sites.

Byla studována redukce NO pomocí CO na katalytických systémech na bázi Ha Na formy mordenitu nasycené rutheniem; obsah Ru byl 0.2, 1 a 3 procent. Katalyzátor vykazoval vysokou aktivitu pro redukci NO n N2, podařilo se dosáhnout prakticky 100 procent konverzi při teplotách do 100 stupňů C.
Trvalý link: http://hdl.handle.net/11104/0156556