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A nanophase oxygen storage material: Alumina-coated metal-based ceria
KTH, Skolan för informations- och kommunikationsteknik (ICT), Materialfysik (Stängd 20120101), Funktionella material, FNM (Stängd 20120101).
KTH, Skolan för informations- och kommunikationsteknik (ICT), Materialfysik (Stängd 20120101), Funktionella material, FNM (Stängd 20120101).
KTH, Skolan för informations- och kommunikationsteknik (ICT), Materialfysik (Stängd 20120101), Funktionella material, FNM (Stängd 20120101).
KTH, Skolan för informations- och kommunikationsteknik (ICT), Materialfysik (Stängd 20120101), Funktionella material, FNM (Stängd 20120101).
Vise andre og tillknytning
2009 (engelsk)Inngår i: Journal of the European Ceramic Society, ISSN 0955-2219, E-ISSN 1873-619X, Vol. 29, nr 4, s. 677-689Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Nanoparticles of Ce1-xMxO2-delta (M = Ca or Zr) coated with Al2O3 with average crystallite size of 10 nm have been synthesised via solution chemistry approach under controlled chemical and hydrodynamic conditions. Their synthesis has been accomplished in three major steps: (1) simultaneous co-precipitation of cations, (2) sequential precipitation of Al(OH)(3) over the former particles and (3) calcination of the precipitated precursors to the corresponding oxides. Several compositions have been synthesised and their physicochemical properties are compared with commercial state-of-the-art material. The Al2O3-coating hinders the particles growth at high temperatures, resulting in materials with a large specific surface area and a restrain in the decrease of their oxygen storage capacity.

sted, utgiver, år, opplag, sider
2009. Vol. 29, nr 4, s. 677-689
Emneord [en]
Calcination, Composites, Nanocomposites, CeO2, Grain size, solid-solution, catalysts, ceo2, promoters, oxidation, capacity, behavior, oxides, system
Identifikatorer
URN: urn:nbn:se:kth:diva-18112DOI: 10.1016/j.jeurceramsoc.2008.07.017ISI: 000262573100018OAI: oai:DiVA.org:kth-18112DiVA, id: diva2:336158
Merknad

QC 20100525

Tilgjengelig fra: 2010-08-05 Laget: 2010-08-05 Sist oppdatert: 2017-12-12bibliografisk kontrollert

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Adamopoulos, OthonBjörkman, EvaZhang, YuMuhammed, Mamoun
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