“…This method lead, in our lab, to better results (in terms of [15,[30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46] for Fe 3+ (NO) complexes; Refs. [15,17,18,35,[47][48][49][50][51][52] for Fe 2+ (NO); Refs. [15,17,18,35,48,[50][51][52] for Fe 2+ (NO) 2 ; Refs.…”
Section: Comparison Of Ir Nitrosyl Bands Formed On Different Fe-samplesmentioning
confidence: 99%
“…[15,17,18,35,[47][48][49][50][51][52] for Fe 2+ (NO); Refs. [15,17,18,35,48,[50][51][52] for Fe 2+ (NO) 2 ; Refs. [15,17,18,30,35,48,50,53] Fe 2+ (NO) 3 ones.…”
Section: Comparison Of Ir Nitrosyl Bands Formed On Different Fe-samplesmentioning
A new method for preparing ZSM-5 catalysts containing highly dispersed iron species is presented. Iron(III) oxalate was used as the iron precursor in an aerobic aqueous exchange process. The presence of different iron species inside the zeolite pores was investigated by IR spectroscopy of adsorbed NO, which revealed an excellent iron dispersion. The results were compared with those obtained on a Fe-ZSM-5 catalysts prepared by iron(II) chloride sublimation and on samples prepared by controlled migration of framework iron in isomorphously substituted samples.
“…This method lead, in our lab, to better results (in terms of [15,[30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46] for Fe 3+ (NO) complexes; Refs. [15,17,18,35,[47][48][49][50][51][52] for Fe 2+ (NO); Refs. [15,17,18,35,48,[50][51][52] for Fe 2+ (NO) 2 ; Refs.…”
Section: Comparison Of Ir Nitrosyl Bands Formed On Different Fe-samplesmentioning
confidence: 99%
“…[15,17,18,35,[47][48][49][50][51][52] for Fe 2+ (NO); Refs. [15,17,18,35,48,[50][51][52] for Fe 2+ (NO) 2 ; Refs. [15,17,18,30,35,48,50,53] Fe 2+ (NO) 3 ones.…”
Section: Comparison Of Ir Nitrosyl Bands Formed On Different Fe-samplesmentioning
A new method for preparing ZSM-5 catalysts containing highly dispersed iron species is presented. Iron(III) oxalate was used as the iron precursor in an aerobic aqueous exchange process. The presence of different iron species inside the zeolite pores was investigated by IR spectroscopy of adsorbed NO, which revealed an excellent iron dispersion. The results were compared with those obtained on a Fe-ZSM-5 catalysts prepared by iron(II) chloride sublimation and on samples prepared by controlled migration of framework iron in isomorphously substituted samples.
“…Authors [16] using mechanochemical treatment have synthesized La 1Àx Ca x FeO 3Àd samples with x lying between 0 and 1 by calcination at 900 E which results in the formation of solid solutions with perovskite-like structure at only compositions with x < 0.5. At higher substitution degree (x !…”
Section: Introductionmentioning
confidence: 99%
“…Authors [17] investigated effects of time of mechanochemical treatment of simple oxides and temperature of their calcination on the phase composition, real structure and catalytic properties of final compounds in the reaction of CO oxidation. It was found in Ref.…”
“…The copper based catalyst (G-66MR, Südchemie) was micromilled to particles in the nanometer range and used for the coating of the microchannels. The activity of the catalyst layer was found to exceed the values of the original formulation.The observation may be explained by a mechanical activation of the catalyst [46,47]. The method proposed allows shortening of the tedious and time consuming procedure for the development of an active catalytic layer.…”
This review addresses the catalytic reactions performed in microstructured reactors, which are more and more recognized in recent years as a novel approach for chemistry and chemical process industry. They are particularly suited for highly exothermic and fast reactions allowing temperature control and isothermal operation. A brief evaluation of the advantages for gas-phase, liquid-phase, and gas-liquid-solid reactions carried out in miniaturized devices is discussed. Alternative designs to achieve microstructured fluid patterns, besides microfabrication, are also described. #
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