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Fe-ZSM-11 zeolites, prepared by novel sol-gel process with Fe 2+ and/or Fe 3+ as active sites incorporated by reproducible post-synthesis methods were obtained. Investigations of the electron-donor-acceptor (EDA) sites from Fe n+ -containing zeolite by in situ infrared spectroscopy using pyridine as a probe molecule lead to the conclusion that the NO x ...
Reactivity of the NO and NO2 adspecies in the coadsorption of NO with CH4 and O2, and the effect of Si/Al ratio of In-ZSM-5 were studied by FTIR in situ. The relation between the adsorbed species and catalytic activity in the SCR of NOx to N2 was also investigated. The adsorption of NO over this catalyst was performed at room temperature with pure NO followed by purging with vacuum. When NO was introduced...
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