Exploració per autor "Colussi, Sara"
Ara es mostren els items 1-20 de 27
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An efficient and reusable catalyst based on Pd/CeO2 for the room temperature aerobic Suzuki–Miyaura reaction in water/ethanol
Amoroso, Francesco; Colussi, Sara; Del Zotto, Alessandro; Llorca Piqué, Jordi; Trovarelli, Alessandro (2010)
Article
Accés restringit per política de l'editorialThe Pd/CeO2 system behaves as an efficient precatalyst for the Suzuki–Miyaura cross-coupling under mild conditions (298 K, in air) in ethanol/water. A broad range of aryl bromides, including those deactivated, and ... -
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)
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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)
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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)
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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 ... -
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)
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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 ... -
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)
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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)
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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)
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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 ... -
Liquid phase selective oxidation of benzene over nanostructured CuxCe1-xO2-delta (0.03 <= x <= 0.15)
Mistri, Rajib; Rahaman, Motiar; Llorca Piqué, Jordi; Priolkar, Kaustubh R.; Ray, Bidhan Chandra; Colussi, Sara; Gayen, Arup (2014-08-01)
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Accés restringit per política de l'editorialLiquid phase direct oxidation of benzene to phenol was carried out over copper loaded on oxides such as ceria, alumina, magnesia, ferric oxide, zinc oxide with 30% H2O2 as oxidant under atmospheric pressure. Of all the ... -
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)
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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)
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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)
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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)
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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 ... -
Nanofaceted PdO sites in PdCe surface superstructures: enhanced activity in catalytic combustion of methane
Colussi, Sara; Gayen, Arup; Farnesi Camellone, Matteo; Boaro, Marta; Llorca Piqué, Jordi; Fabris, Stefano; Trobarelli, Alessandro (2009-10)
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Accés restringit per política de l'editorialAn open superstructure: A Pd/CeO2 catalyst prepared by solution combustion synthesis is three to five times more active for CH4 combustion than the best conventional palladium-based systems. The catalyst contains an ordered, ... -
Origin of high activity and selectivity of CuO/CeO2 catalysts prepared by solution combustion synthesis in CO-PROX reaction
Barbato, P.S.; Colussi, Sara; Di Benedetto, A.; Landi, Giada; Lisi, L.; Llorca Piqué, Jordi; Trovarelli, Alessandro (2016-06-23)
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Accés restringit per política de l'editorialA CuO/CeO2 catalyst with 4 wt % CuO nominal content has been prepared by solution combustion synthesis (SCS) and characterized by ICP-MS, BET surface area analysis, XPS, HRTEM, and H-2, and/or CO TPR. The catalyst, showing ... -
Outstanding methane oxidation performance of palladium-embedded ceria catalysts prepared by a one-step dry ball-milling method
Danielis, Maila; Colussi, Sara; de Leitenburg, Carla; Soler Turu, Lluís; Llorca Piqué, Jordi; Trovarelli, Alessandro (2018-08-06)
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Accés obertBy carefully mixing Pd metal nanoparticles with CeO2 polycrystalline powder under dry conditions, an unpredicted arrangement of the Pd-O-Ce interface is obtained in which an amorphous shell containing palladium species ... -
Pd/CeO2 catalysts prepared by solvent-free mechanochemical route for methane abatement in natural gas fueled vehicles
Danielis, Maila; Colussi, Sara; Llorca Piqué, Jordi; Trovarelli, Alessandro (American Chemical Society (ACS), 2021-03-15)
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Accés obertThe increasing diffusion of alternative mobility solutions, ranging from electric technologies to natural gas fueled vehicles (NGVs), has led to a progressive life-cycle analysis approach of their environmental impact in ... -
PdO hydrate as an efficient and recyclable catalyst for the Suzuki-Miyaura reaction in water/ethanol at room temperature
Amoroso, Francesco; Colussi, Sara; Del Zotto, Alessandro; Llorca Piqué, Jordi; Trovarelli, Alessandro (2011-02-12)
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Accés restringit per política de l'editorialPdO·1.4H2O 1 prepared in our laboratories, as well as commercially available palladium oxides 2–4 have been found to act as efficient catalysts for the Suzuki–Miyaura reaction in ethanol/water mixture at room temperature ... -
Relevant parameters for the mechanochemical synthesis of bimetallic supported catalysts
Danielis, Maila; Braga, Andrea; Jiménez Divins, Nuria; Llorca Piqué, Jordi; Trovarelli, Alessandro; Colussi, Sara (Multidisciplinary Digital Publishing Institute (MDPI), 2023-12-14)
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Accés obertMechanochemical synthesis for the preparation of bimetallic catalysts is gaining increasing interest, and in recent years, some important milestones have been reached. However, the complexity of mechanochemically prepared ... -
Room temperature oxidation of formaldehyde on Pt-based catalysts: A comparison between ceria and other supports (TiO2, Al2O3 and ZrO2)
Colussi, Sara; Boaro, Marta; De Rogatis, Loredana; Pappacena, Alfonsina; de Leitenburg, Carla; Llorca Piqué, Jordi; Trovarelli, Alessandro (2015-09-15)
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Accés obertPlatinum-based catalysts for the room temperature removal of formaldehyde are prepared on ceria and other supports (TiO2, Al2O3 and ZrO2) for comparison, starting from chloride and nitrate precursors. The behaviour towards ...