Archivio Istituzionale della RicercaThe adsorption of NO has been investigated in the temperature range 50-150 °C on Cu-ZSM-5 and La-Cu-ZSM-5 also in the presence of water and O 2 in a continuous flow reactor. TPD experiments have been performed after each adsorption test monitoring all desorbed NO x species. Water has been found to displace NO from copper sites strongly reducing its adsorption except for nitrate-like species which are partially preserved also in the presence of water. O 2 addition, although decreasing NO adsorption, limits the negative effect of water. Lanthanum co-exchange results in improving the NO adsorption capacity of the zeolite both in the absence and in the presence of water
Effect of water on NO adsorption over Cu-ZSM-5 based catalysts / Landi, G.; Lisi, L.; Pirone, Raffaele; Russo, G.; Tortorelli, M.. - In: CATALYSIS TODAY. - ISSN 0920-5861. - 191:1(2012), pp. 138-141. [10.1016/j.cattod.2012.01.018]
Effect of water on NO adsorption over Cu-ZSM-5 based catalysts
PIRONE, RAFFAELE;
2012
Abstract
The adsorption of NO has been investigated in the temperature range 50-150 °C on Cu-ZSM-5 and La-Cu-ZSM-5 also in the presence of water and O 2 in a continuous flow reactor. TPD experiments have been performed after each adsorption test monitoring all desorbed NO x species. Water has been found to displace NO from copper sites strongly reducing its adsorption except for nitrate-like species which are partially preserved also in the presence of water. O 2 addition, although decreasing NO adsorption, limits the negative effect of water. Lanthanum co-exchange results in improving the NO adsorption capacity of the zeolite both in the absence and in the presence of water
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https://hdl.handle.net/11583/2495898
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