RT journal article
T1 Insights on the combustion mechanism of ethanol and n-hexane in honeycomb monolithic type catalysts: Influence of the amount and nature of Mn-Cu mixed oxide
A1 Morales, Maria R.
A1 Yeste Siguenza, María del Pilar
A1 Vidal Muñoz, Hilario
A1 Gatica Casas, José Manuel
A1 Cadus, Luis E.
A2 Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica
K1 Manganese-Copper mixed oxide
K1 Cordierite
K1 Ethanol
K1 n-hexane
K1 VOC oxidation
AB Mn-Cu mixed oxides were deposited by ultrasonic impregnation on ceramic honeycomb12 monoliths. Its catalytic performance was evaluated in the combustion of ethanol and n-hexane, VOC13 molecules of different chemical nature. The catalysts were characterized by N2 physisorption, SEM14 EDS, XRD, X-ray fluorescence, XPS, TPR, TPD-O2 and OSC measurements. It was observed that15 the catalyst with the lowest content of Mn-Cu phase was the most active in the combustion ofethanol. This was attributed to the higher content of Mn4+ 16 and the increase of lattice oxygen mobility,17 which would favor a Mars-van Krevelen type mechanism. The catalyst with a medium content of18 Mn-Cu, proved to be the most active in the combustion of n-hexane. This was associated with a high19 content of oxygen vacancies and easy availability of oxygen adsorbed on the surface, promoting the20 combustion of n-hexane, possibly through a Rideal-Eley type mechanism. The catalyst with the21 highest content of the Mn-Cu phase showed low activity in combustion of ethanol and n-hexane,22 which was attributed to a higher crystallinity of the Mn-Cu phases generated.
PB Elsevier Ltd
SN 0016-2361
YR 2017
FD 2017
LK http://hdl.handle.net/10498/35445
UL http://hdl.handle.net/10498/35445
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 13-nov-2026