Now showing items 1-8 of 8

  • Ambient pressure photoemission spectroscopy reveals the mechanism of carbon soot oxidation in ceria-based catalysts 

    Soler Turu, Lluís; Casanovas Grau, Albert; Escudero, Carlos; Pérez-Dieste, Virginia; Aneggi, Eleonora; Trovarelli, Alessandro; Llorca Piqué, Jordi (2016-06-27)
    Article
    Open Access
    Removing soot is one of the most important challenges in minimizing the impact of combustion engines on the environment. Catalysts based on CeO2 have proved suitable to oxidize soot due to their capacity to store and release ...
  • 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
    Open Access
    Engineering 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 ...
  • 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
    Restricted access - publisher's policy
    High 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 ...
  • 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
    Restricted access - publisher's policy
    The 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 ...
  • Shape-dependent activity of ceria in soot combustion 

    Aneggi, Eleonora; Wiater, Dawid; de Leitenburg, Carla; Llorca Piqué, Jordi; Trovarelli, Alessandro (2014-01)
    Article
    Restricted access - publisher's policy
    In 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
    Open Access
    The 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
    Open Access
    Ruthenium-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 ...
  • 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
    Restricted access - publisher's policy
    The 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 ...