Preparation of a Fe-mordenite catalysts was carried out by impregnation using Fe(acac)3 precursor in order to have iron oxide species deposited at the surface of the zeolite. The selective presence of iron oxide species was determined and ascertained by temperature programmed reduction (TPR). In the selective catalytic reduction of NO by ammonia, no difference of conversion between the catalysts was observed indicating that well dispersed iron oxide species are active species for this reaction. Nevertheless, the obtained activity remains lower than catalysts containing iron cationic species at the exchange sites.
Authors:András Németh, Krisztián Stadler, Judit Jakus, and Tamás Vidóczy
between nitric dioxide ( • NO 2 ), carbonate radical anion (CO 3 •− ) and hydroxyl radical ( • OH) in the production of luminol radicals, (iv) the contribution of peroxynitrous acid (ONOOH) homolysis, and (v) that of nitricoxide ( • NO) oxidation to the
Authors:Abolfazl Shiroudi, Ehsan Zahedi, and Reza Zabihi
the decomposition of 2,5-dihydrofuran ( 1 ) between 342 and 409 °C and 2,5-dihydrothiophene ( 2 ). Wellington [ 2 ] showed that the addition of nitricoxide, propylene or toluene had no effect upon the rate decomposition of 2,5-dihydrofuran and the