Exploració per autor "Trovarelli, Alessandro"
Ara es mostren els items 3-22 de 44
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Ceria catalysts at nanoscale: how do crystal shapes shape catalysis?
Trovarelli, Alessandro; Llorca Piqué, Jordi (2017-07-01)
Article
Accés obertEngineering the shape and size of catalyst particles and the interface between different components of heterogeneous catalysts at the nanometer level can radically alter their performances. This is particularly true with ... -
Ceria-zirconia particles wrapped in a 2D carbon envelope: improved low-temperature oxygen transfer and oxidation activity
Aneggi, Eleonora; Rico Perez, Veronica; de Leitenburg, Carla; Maschio, Stefano; Soler Turu, Lluís; Llorca Piqué, Jordi; Trovarelli, Alessandro (2015-10-08)
Article
Accés obertEngineering the interface between different compo-nents of heterogeneous catalysts at nanometer level canradically alter their performances.This is particularly true forceria-based catalysts where the interactions are ... -
Chemoselective hydrogenation of cinnamaldehyde at atmospheric pressure over combustion synthesized Pd catalysts
Das, Dipak; Pal, Kamalesh; Llorca Piqué, Jordi; Domínguez Escalante, Montserrat; Colussi, Sara; Trovarelli, Alessandro; Gayen, Arup (2017-10-01)
Article
Accés obertA series of Pd-supported metal oxides (Al2O3, Fe2O3 and CeO2) have been prepared by a single step solution combustion synthesis (SCS) method. Their catalytic performance was evaluated for the selective hydrogenation of ... -
CO preferential oxidation under H-2-rich streams on copper oxide supported on Fe promoted CeO2
Barbato, P.S.; Colussi, Sara; Di Benedetto, A.; Landi, Giada; Lisi, L.; Llorca Piqué, Jordi; Trovarelli, Alessandro (2015-10-05)
Article
Accés obertIn this work the effect of Fe addition to copper/ceria catalysts on the catalytic activity toward CO-PROX reaction has been studied and related to the modification of textural and redox properties induced by iron. Catalysts ... -
Combustion synthesized copper-ion substituted FeAl2O4 (Cu0.1Fe0.9Al2O4): A superior catalyst for methanol steam reforming compared to its impregnated analogue
Maiti, Sayantani; Llorca Piqué, Jordi; Dominguez, Montserrat; Colussi, Sara; Trovarelli, Alessandro; Priolkar, Kaustubh R.; Aquilanti, Giuliana; Gayen, Arup (2016-02)
Article
Accés obertA series of copper ion substituted MAl2O4 (M = Mg, Mn, Fe and Zn) spinels is prepared by a single step solution combustion synthesis (SCS) and tested for methanol steam reforming (MSR). The copper ion substituted Cu0.1Fe0.9Al2O4 ... -
Effect of redox treatments on Ce0.50Zr0.50O2 based solid oxide fuel cell anodes
Boaro, Marta; Pappacena, Alfonsina; Abate, Chiara; Ferluga, Matteo; Llorca Piqué, Jordi; Trovarelli, Alessandro (2014-12-15)
Article
Accés restringit per política de l'editorialThis work investigates the activity of copper modified Ce0.50Zr0.50O2 (Cu-CZ) based anodes prepared through subsequent impregnation steps into a porous YSZ matrix. The ceria zirconia oxide was reduced at increasing ... -
Ethanol steam reforming and water gas shift over Co/ZnO catalytic honeycombs doped with Fe, Ni, Cu, Cr and Na
Casanovas, A.; Roig Costa, Maria; de Leitenburg, Carla; Trovarelli, Alessandro; Llorca Piqué, Jordi (2010-08)
Article
Accés restringit per política de l'editorial -
Exsolution-enhanced reverse water-gas shift chemical looping activity of Sr2FeMo0.6Ni0.4O6-d double perovskite
Orsini, Francesco; Ferrero, Domenico; Cannone, Salvatore Francesco; Santarelli, Massimo; Felli, Andrea; Boaro, Marta; de Leitenburg, Carla; Trovarelli, Alessandro; Llorca Piqué, Jordi; Dimitrakopoulos, Georgios; Ghoniem, Ahmed F. (Elsevier, 2023-11-01)
Article
Accés obertThis study investigates the structural evolution and redox characteristics of the double perovskite Sr2FeMo0.6Ni0.4O6-d (SFMN) during hydrogen (H2) and carbon dioxide (CO2) redox cycles and explores the material performance ... -
Higher activity of diesel soot oxidation over polycrystalline ceria and ceria-zirconia solid solutions from more reactive surface planes
Aneggi, Eleonora; de Leitenburg, Carla; Llorca Piqué, Jordi; Trovarelli, Alessandro (2012-12-15)
Article
Accés restringit per política de l'editorialHigh temperature treatment under air of samples of polycrystalline ceria and ceria–zirconia is shown to induce a rearrangement of crystals, with a surface structural evolution of the oxides toward the formation of more ... -
Identification of highly selective surface pathways for methane dry reforming using mechanochemical synthesis of Pd-CeO2
Jiménez, Juan D.; Betancourt, Luis E.; Danielis, Maila; Zhang, Hong; Zhang, Feng; Orozco, Ivan; Xu, Wenqian; Llorca Piqué, Jordi; Liu, Ping; Trovarelli, Alessandro; Rodríguez, José A.; Colussi, Sara; Senanayake, Sanjaya D. (2022-10-07)
Article
Accés obertThe methane dry reforming (DRM) reaction mechanism was explored via mechanochemically prepared Pd/CeO2 catalysts (PdAcCeO2M), which yield unique Pd–Ce interfaces, where PdAcCeO2M has a distinct reaction mechanism and higher ... -
In situ environmental HRTEM discloses low temperature carbon soot oxidation by ceria-zirconia at the nanoscale
Aneggi, Eleonora; Llorca Piqué, Jordi; Trovarelli, Alessandro; Aouine, Mimoun; Vernoux, Philippe (2019-04-07)
Article
Accés obertThe very close contact between ceria–zirconia and carbon soot allows the detection of oxygen transfer from ceria–zirconia to carbon by in situ Environmental HRTEM already at low temperatures. This highlights the outstanding ... -
Influence of different palladium precursors on the properties of solution-combustion-synthesized palladium/ceria catalysts for methane combustion
Colussi, Sara; Gayen, Arup; Boaro, Marta; Llorca Piqué, Jordi; Trovarelli, Alessandro (2015-07-01)
Article
Accés obertA series of Pd/CeO2 catalysts was prepared by solution combustion synthesis (SCS) using different Pd precursors. The powders were characterized by complementary techniques such as BET surface area measurements, X-Ray ... -
Investigation of the evolution of Pd-Pt supported on ceria for dry and wet methane oxidation
Jiménez Divins, Nuria; Braga, Andrea; Vendrell Villafruela, Xavier; Serrano Carreño, M. Isabel; García de Andrés, Xènia; Soler Turu, Lluís; Lucentini, Ilaria; Danielis, Maila; Mussio, Andrea; Colussi, Sara; Villar García, Ignacio J.; Escudero, Carlos; Trovarelli, Alessandro; Llorca Piqué, Jordi (2022-08-29)
Article
Accés obertEfficiently treating methane emissions in transportation remains a challenge. Here, we investigate palladium and platinum mono- and bimetallic ceria-supported catalysts synthesized by mechanical milling and by traditional ... -
Investigation of the mechanochemically promoted Pd–Ce interaction under stoichiometric methane oxidation conditions
Danielis, Maila; Jiménez Divins, Nuria; Llorca Piqué, Jordi; Soler Turu, Lluís; García de Andrés, Xènia; Serrano Carreño, M. Isabel; Betancourt, Luis E.; Xu, Wenqian; Rodriguez, Jose A.; Senanayake, Sanjaya D.; Colussi, Sara; Trovarelli, Alessandro (2023)
Article
Accés obertThe optimization of the supported Pd phase for CH4 activation on Pd/CeO2 catalysts has been a matter of great interest in the recent literature, aiming at the design of efficient methane abatement catalysts for Natural Gas ... -
Mechanochemistry: a green and fast method to prepare a new generation of metal supported catalysts
Danielis, Maila; Colussi, Sara; Jiménez Divins, Nuria; Soler Turu, Lluís; Trovarelli, Alessandro; Llorca Piqué, Jordi (2023)
Article
Accés obertIn this review, we report on recent advances in the use of mechanochemistry to synthesize new catalytic materials. We report recent results obtained by our groups where a rational design of the milling parameters led to ... -
Methane oxidation activity and nanoscale characterization of Pd/CeO2 catalysts prepared by dry milling Pd acetate and ceria
Danielis, Maila; Orozco, Ivan; Jiménez Divins, Nuria; Llorca Piqué, Jordi; Rodriguez, Jose A.; Senanayake, Sanjaya D.; Colussi, Sara; Trovarelli, Alessandro (2021-03-01)
Article
Accés obertThe milling of Palladium acetate and CeO2 under dry conditions results in robust, environmentally friendly catalysts with excellent methane oxidation activity. These catalysts show superior performance compared to those ... -
Methanol steam reforming behavior of copper impregnated over CeO2-ZrO2 derived from a surfactant assisted coprecipitation route
Llorca Piqué, Jordi; Colussi, Sara; Domínguez Escalante, Montserrat; Trovarelli, Alessandro; Gayen, Arup; Das, Dipak (2015-09-07)
Article
Accés obertA series of ceria-zirconia solid solutions has been prepared by a surfactant assisted coprecipitation method. After impregnation of copper, their activities have been assessed for methanol steam reforming. The results ... -
Methanol steam reforming behavior of sol-gel synthesized nanodimensional CuxFe1-xAl2O4 hercynites
Maiti, Sayantani; Das, Dipak; Pal, Kamalesh; Llorca Piqué, Jordi; Soler Turu, Lluís; Colussi, Sara; Trovarelli, Alessandro; Priolkar, Kaustubh R.; Sarode, P.R.; Asakura, K.; Motin Seikh, Md.; Gayen, Arup (2019-01-25)
Article
Accés obertThis work reports the outstanding catalytic activity behavior of sol-gel synthesized nanostructured CuxFe1-xAl2O4 (0.3¿=¿x¿=¿0.8; named as CuFeAln, where n¿=¿30, 40, 50, 60, 70 and 80) hercynites towards methanol steam ... -
Mixed iron-erbium vanadate NH3-SCR catalysts
Casanova, Marzia; Llorca Piqué, Jordi; Schermanz, Karl; Trovarelli, Alessandro; Sagar, Amod (2015-03-01)
Article
Accés restringit per política de l'editorialA series of SCR catalysts of mixed iron-erbium vanadates supported on TiO2-WO3-SiO2 were prepared and their reduction, textural, structural and morphological properties characterized by temperature programmed reduction, ... -
New insights into the dynamics that control the activity of ceria-zirconia solid solutions in thermochemical water splitting cycles
Pappacena, Alfonsina; Rancan, M.; Armelao, Lidia; Llorca Piqué, Jordi; Ge, W.; Ye, B.; Lucotti, A.; Trovarelli, Alessandro; Boaro, Marta (2017-08-24)
Article
Accés obertThe reactivity of a ceria-rich Ce0.85Zr0.15O2 solid solution toward the thermochemical water splitting process (TWS) was studied over repeated H2/H2O redox cycles. The structural and surface modifications after treatment ...