RESINI , Carlo

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The divanadates M(2)V(2)O(7) of a virtually unreducible and unoxidizable cation, Mg(2+), of a reducible cation, Cu(2+), and of an oxidizable cation, Mn(2+), have been prepared and characterized by X-ray diffraction, surface area measurements, skeletal IR and UV-vis-NIR spectroscopies, and DTA-TG analyses. These materials have also been tested...

The available technologies for the abatement of phenol from water and gaseous streams are briefly reviewed, and the recent advancements summarized. Separation technologies such as distillation, liquid–liquid extraction with different solvents, adsorption over activated carbons and polymeric and inorganic adsorbents, membrane pervaporation and...

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The interaction of different probes with two H-MOR samples has been studied by IR. In the case of the sample with Si/Al = 10 acetonitrile perturbs all the hydroxy groups while 2,2-dimethylpropionitrile (pivalonitrile) perturbs only very few. Pyridine also perturbs all the hydroxy groups but only some of them protonate the pyridine, the others...

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The catalytic performances of lanthanum strontium manganite in catalytic wet oxidation (CWO) of a phenol solution under milder conditions of temperature and pressure, in a batch reactor, have been investigated. Aim of the study is the evaluation of the effect of temperature, catalyst loading, phenol concentration and stirrer speed on phenol...

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The urea hydrolysis method allowed to prepare well-crystallized Ni-Co-Zn-Al Layered Double Hydroxides to be used as precursors of mixed oxide catalysts for the Ethanol Steam Reforming (ESR) reaction. The calcination of the layered precursors gives rise to high surface area mixed oxides, being actually a mixture of a rock salt phase (NiO), a...

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The conversion of propane in the presence of oxygen on V-K/Al2O3 catalysts with different surface area and in different feed conditions has been investigated. The activation energy measured at low conversion is 21 kcal/mol (88 kJ/mol) and the reaction order of propane is 1. In order to propose a reaction pathway, complementary experiments have...

Mn-Zr mixed oxide materials have been prepared by a sol-gel method from a Mn (III) precursor salt and a solution of zirconium acetate in acetic acid, being characterized from a structural and morphological point of view. Conventional solid state techniques show that as obtained powders are formed by mixtures of manganese and zirconium acetates...

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Co-H-MFI and Co-H-FER were studied as catalysts for NO reduction with methane, under diluted conditions. Catalyst bulk and surface structure was characterised by chemical analysis, XRD, TG-DTA, SEM micrographs, IR studies, UV-vis spectroscopy, ammonia TPD, and TPR. Only the features due to zeolitic frameworks were observed. The UV-vis spectra...

Bioethanol is an attractive fuel for direct internal reforming SOFC (DIR-SOFC). The aim of this work is to investigate the activity of Ni–YSZ, used as precursor for the preparation of SOFC anodes and as catalyst of the ethanol steam reforming reaction. The effect of the addition of cobalt is also studied, as the best performance is given by...

IR spectroscopy of low temperature adsorbed CO and CO + NO has been used to characterize the surface species on a 5% Ni-YSZ catalyst. Dispersed surface Ni species are present on the fresh catalyst, essentially formed by Ni2+, although it is evident that these species are very easily reduced in very mild conditions to zerovalent atomic nickel....

The conversion of the C3 organics propane, propene, isopropanol and acetone in auto-thermal and endothermic steam reforming conditions has been investigated over a Pd–Cu/Al2O3 catalyst in a flow reactor. Although several reactions may occur at lower temperatures (like dehydrogenation, oxidative dehydrogenation, dehydration and combustion),...

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