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M-MCM-41 molecular sieves (M = Ce or Cr) were prepared by a hydrothermal method and impregnated with TiO 2 . The materials were characterized by XRD, N 2 adsorption–desorption, DRS and XPS. Their potential application to photooxidize H 2 S in a wet gas stream was tested in a continuous flow...
A mechanistic scheme of N 2 O and N 2 formation in the selective catalytic reduction of NO with NH 3 over a Ag/Al 2 O 3 catalyst in the presence and absence of H 2 and O 2 was developed by applying a combination of different techniques: transient experiments with isotopic tracers in the temporal...
The literature reported different studies of soot combustion reaction under very distinct experimental conditions, which can include different values of catalyst:soot weight ratios, gas flow and heating rates. Therefore, avoiding screening of innumerable catalysts or empirical experiments, this...
A new carbon supported Pt (Pt/C(b)) catalyst was prepared by reducing H 2 PtCl 6 in glycol solution using formic acid as a reducing agent, and has been found in this work to be highly active and stable for the electrochemical oxidation of ethanol. The preparation produces highly dispersed Pt...
Non-thermal plasma as well as photocatalysis is intensively investigated for volatile organic compounds (VOCs) oxidation. Their association exhibits high performances for air pollutant removal and mineralization. Nevertheless, numerous experimental investigations are performed under dry...
Mixed metal oxides SnO 2 –RuO 2 –IrO 2 , Ta 2 O 5 –IrO 2 and RhO 2 –IrO 2 were immobilised on a Ti substrate using sol–gel techniques. The Ti mixed metal oxides were characterized in terms of morphology using scanning electron microscopy. Cyclic voltammetric responses of phenol at...
Perovskite-type oxides, containing Pd, were prepared via a combined sol–gel and combustion synthesis method and were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and BET specific surface area (SSA). Their activity as...
The aim of this work is to compare the catalytic activity of some pure and doped lanthanum cobaltites, prepared by solution combustion technique, with a Pt/Al 2 O 3 commercial catalyst. As test reaction we used the combustion of lean methane mixtures. The experimental data evidenced a...
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