Exploració per autor "Colussi, Sara"
Ara es mostren els items 5-24 de 27
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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 ... -
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)
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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)
Article
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)
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)
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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)
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 ... -
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)
Article
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)
Article
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)
Article
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)
Article
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 ... -
Room-temperature Suzuki-Miyaura reaction catalyzed by Pd supported on rare earth oxides: Influence of the point of zero charge on the catalytic activity
Amoroso, Francesco; Colussi, Sara; del Zotto, Alessandro; Llorca Piqué, Jordi; Trovarelli, Alessandro (2013-06-01)
Article
Accés restringit per política de l'editorialFive Pd/REO (rare earth oxide) compounds (Pd/La2O3, Pd/CeO2, Pd/Pr6O11, Pd/Sm2O 3, and Pd/Gd2O3) have been successfully used as precatalysts in the Suzuki-Miyaura C-C cross-coupling reaction of aryl bromides with arylboronic ... -
Structural evolution of bimetallic PtPd/CeO2 methane oxidation catalysts prepared by dry milling
Mussio, Andrea; Danielis, Maila; Jiménez Divins, Nuria; Llorca Piqué, Jordi; Colussi, Sara; Trovarelli, Alessandro (2021-06-02)
Article
Accés obertBimetallic Pt–Pd catalysts supported on ceria have been prepared by mechanochemical synthesis and tested for lean methane oxidation in dry and wet atmosphere. Results show that the addition of platinum has a negative effect ... -
Structure and morphology of Pd/Al2O3 and Pd/CeO2/Al2O3 combustion catalysts in Pd–PdO transformation hysteresis
Colussi, Sara; Trovarelli, Alessandro; Vesselli, Erik; Baraldi, Alessandro; Comelli, Giovanni; Groppi, Gianpiero; Llorca Piqué, Jordi (2010)
Article
Accés restringit per política de l'editorialCatalytic combustion of methane has been studied for many years due to its applications in power generation and emissions clean-up. Among different catalysts, Pd-based materials are the most active for the catalytic ... -
Surface faceting and reconstruction of ceria nanoparticles
Yang, Chengwu; Yu, Xiaojuan; Heissler, Stefan; Nefedov, Alexei; Colussi, Sara; Llorca Piqué, Jordi; Trovarelli, Alessandro; Wang, Yuemin; Woell, Christof (2017-01-02)
Article
Accés obertThe surface atomic arrangement of metal oxides determines their physical and chemical properties, and the ability to control and optimize structural parameters is of crucial importance for many applications, in particular ...