Exploració per autor "Trovarelli, Alessandro"
Ara es mostren els items 27-44 de 44
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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)
Article
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)
Article
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 ... -
Shape-dependent activity of ceria in soot combustion
Aneggi, Eleonora; Wiater, Dawid; de Leitenburg, Carla; Llorca Piqué, Jordi; Trovarelli, Alessandro (2014-01)
Article
Accés restringit per política de l'editorialIn this study, a series of conventional polycrystalline ceria and single-crystalline ceria nanorods and nanocubes were prepared by hydrothermal methods, and their structural, redo; and morphological properties were ... -
Silver-based catalytic materials for the simultaneous removal of soot and NOx
Castoldi, Lidia; Aneggi, Eleonora; Matarrese, Roberto; Bonzi, Rossella; Llorca Piqué, Jordi; Trovarelli, Alessandro; Lietti, Luca (2015-12-01)
Article
Accés obertThe potential of silver-based catalysts in the simultaneous removal of particulate matter (soot) and NOxis investigated in this work and compared with that of a model Pt-Ba/Al2O3catalyst. The Ag (5 wt%) - Ba (10 wt%)/MO ... -
Simultaneous removal of soot and NOx, over K- and Ba-doped ruthenium supported catalysts
Matarrese, Roberto; Aneggi, Eleonora; Castoldi, Lidia; Llorca Piqué, Jordi; Trovarelli, Alessandro; Lietti, Luca (2016-06-01)
Article
Accés obertRuthenium-based materials are investigated for the simultaneous removal of soot and NOx and their behavior is compared with that of model Pt-Ba/Al2O3 and Pt-K/Al2O3 catalysts.; The materials, 1%wt Ru-10%wt AM/MO (AM = Ba ... -
Solvent-free selective oxidation of benzyl alcohol using Ru loaded ceria-zirconia catalysts
Aneggi, Eleonora; Campagnolo, Filippo; Segato, Jacopo; Zuccaccia, Daniele; Baratta, Walter; Llorca Piqué, Jordi; Trovarelli, Alessandro (2023-04-01)
Article
Accés restringit per política de l'editorialIn addition of a key catecholamine neurotransmitter, dopamine is is the metabolite predominantly produced by specific types of tumors (e.g. paragangliomas and neuroblastomas), which cannot be diagnosed using conventional ... -
Structural and electrocatalytic properties of molten core Sn@SnOx nanoparticles on ceria
Bardini, Luca; Pappacena, Alfonsina; Domínguez Escalante, Montserrat; Llorca Piqué, Jordi; Boaro, Marta; Trovarelli, Alessandro (2016-11-15)
Article
Accés obertThe morphological and chemical modifications following reduction in hydrogen at 873 K of stannic oxide deposited on ceria particles were studied in order to gain insights into the nature of Ce-Sn interaction under reducing ... -
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 ... -
Sustainable solvent-free selective oxidation of benzyl alcohol using Ru(0) supported on alumina
Aneggi, Eleonora; Campagnolo, Filippo; Zuccaccia, Daniele; Baratta, Walter; Llorca Piqué, Jordi; Trovarelli, Alessandro (2023-04-22)
Article
Accés obertThe selective oxidation of primary alcohols into their corresponding carbonyl compounds is challenging because of the easy over oxidization to acids and esters. The traditional reaction requires large amounts of solvent ... -
The dynamics of PdO-Pd phase transformation in the presence of water over Si-doped Pd/CeO 2 methane oxidation catalysts
Toso, Alessandra; Colussi, Sara; Llorca Piqué, Jordi; Trovarelli, Alessandro (2019-03-25)
Article
Accés obertOne of the main issues for the catalytic abatement of methane from natural gas fueled vehicles over Pd-based materials is due to the large amount of water vapor in the exhausts, which can severely deactivate the catalyst. ... -
The effect of ceria on the dynamics of CuO-Cu2O redox transformation: CuO-Cu2O hysteresis on ceria
Colussi, Sara; Amoroso, Francesco; Katta, Lakshmi; Llorca Piqué, Jordi; Trovarelli, Alessandro (2014-06-01)
Article
Accés restringit per política de l'editorialCuO supported on ceria and alumina is prepared by incipient wetness impregnation and its redox behavior is investigated by means of XRD, XPS and TPO experiments. CuO on ZrO2 and on ceria-zirconia are also synthesized for ... -
The effect of milling parameters on the mechanochemical synthesis of Pd-CeO2 methane oxidation catalysts
Danielis, Maila; Colussi, Sara; de Leitenburg, Carla; Soler Turu, Lluís; Llorca Piqué, Jordi; Trovarelli, Alessandro (2019-01-01)
Article
Accés obertThe preparation of catalytic materials via mechanochemical routes is a very promising alternative to complex wet chemical syntheses due to its simplicity, versatility and ecological advantages. The mechanical mixing of Pd ... -
The formation of nanodomains of Ce6O11 in ceria catalyzed soot combustion
Aneggi, Eleonora; Jiménez Divins, Nuria; de Leitenburg, Carla; Llorca Piqué, Jordi; Trovarelli, Alessandro (2014-04)
Article
Accés restringit per política de l'editorialThe behavior of a series of CeO2 catalysts in soot combustion reaction was investigated by HRTEM and XPS. It is shown that nanodomains of reduced ceria in the form of Ce6O11 develop during reaction under oxygen-containing ... -
The influence of nano-architectured CeOx supports in RhPd/CeO2 for the catalytic ethanol steam reforming reaction
Jiménez Divins, Nuria; Casanovas, A.; Xu, W.; Senanayake, S. D; Wiater, Dawid; Trovarelli, Alessandro; Llorca Piqué, Jordi (2015-09-15)
Article
Accés obertThe ethanol steam reforming (ESR) reaction has been tested over RhPd supported on polycrystalline ceria in comparison to structured supports composed of nanoshaped CeO2 cubes and CeO2 rods tailored toward the production ... -
Water splitting reaction on Ce0.15Zr0.85O2 driven by surface heterogeneity
Pappacena, Alfonsina; Boaro, Marta; Armelao, Lidia; Llorca Piqué, Jordi; Trovarelli, Alessandro (2016)
Article
Accés obertCe0.15Zr0.85O2 was investigated in the two-step water splitting reaction. High-temperature treatment in N-2 induced compositional and structural heterogeneities which contributed to a six-fold increase of H-2 yield after ...