Surface and Texture Characterization of Alumina-Supported Manganese Oxide Catalysts and Their Formate Precursors

Infrared Spectroscopic Study of NO and NH3 Adsorption on Alumina-Supported Nickel Oxide Catalysts

“…The present paper continues our studies on the preparation and characterization of alumina-supported metal oxide catalysts from acetate and formate precursors [11][12][13][14]. Kapteijn et al [15,16] explained the higher activity of the alumina-supported manganese oxide catalysts prepared from acetate precursors with respect to the selective catalytic reduction of NO with NH 3 as compared to those parepared from nitrate precursors in terms of the higher dispersion of the supported oxide phase and its homogeneous distribution throughout the alumina particles.…”

Surface and Texture Characterization of Alumina-Supported Copper and Mixed Copper–Manganese Oxide Catalysts and Their Formate Precursors

“…Three regions of pores could be distinguished in the pore space of alumina (6,40): a region of pores (r p < 40-50Å) between the primary alumina particles forming aggregates; a region of pores (40-50 <r p < 125Å) between the aggregates (Fig. 2A); and a region of very loose packing of the aggregates which is of no interest in our study.…”

“…The present paper reports our continued studies on the preparation of alumina-supported metal oxide catalysts by pore volume impregnation of γ -Al 2 O 3 with metal(II) formate solutions (simple and mixed) (6,10,11). The impregnation of carriers with mixed metal salt solutions aims at increasing the catalyst activity due to the promoting effect of the dopant or at the preparation of oxide phases with a definite structure and stoichiometry.…”

FTIR spectroscopy of NH3 and NO adsorption on copper-on-alumina catalysts

“…The present paper continues our studies on the preparation and characterization of alumina-supported metal oxide catalysts from formate precursors [1,2]. The metal formate hydrates are known to decompose into the corresponding oxides without melting in the crystallization water, thus forming surface oxide phases of higher dispersity as compared to the nitrates and acetates.…”