0000000000358964

AUTHOR

Piero Lupetin

showing 2 related works from this author

Nanosession: Ionics - Redox Kinetics, Ion Transport, and Interfaces

2013

Materials scienceKineticsInorganic chemistryRedoxIon transporter
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Effects of Grain Boundary Decoration on the Electrical Conduction of Nanocrystalline CeO2

2012

In this study, we investigate the effect of decorating the grain boundaries of nanocrystalline undoped ceria on the electrical transport properties. For the decoration, different acceptors (Yb, Y, Bi) were chosen. On decoration, the conduction switches from electronic to ionic. Upon sintering the grains are characterized by a core-shell configuration, in which the core remains undoped while the shell is heavily doped as a consequence of the diffusion of the acceptors toward the grain interior. The shell dominates the overall transport properties of the nanocrystalline ceria and is found to be in the mesoscopic regime.

Materials scienceEXAFS ceria oxide ion conductorCondensed matter physicsRenewable Energy Sustainability and the EnvironmentElectrical conductionMaterials ChemistryElectrochemistryGrain boundaryCondensed Matter PhysicsNanocrystalline materialSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsJournal of The Electrochemical Society
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