Synthesis of CeO2, ZrO2, Ce0.5Zr0.5O2, and TiO2 nanoparticles by a novel oil-in-water microemulsion reaction method and their use as catalyst support for CO oxidation

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Fältnamn	Indikatorer	Metadata
000		02951naa a2200445 4500
001		oai:DiVA.org:kth-27981
003		SwePub
008		110103s2010 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279812 URI
024	7	a https://doi.org/10.1016/j.cattod.2010.05.0262 DOI
040		a (SwePub)kth
041		a engb eng
042		9 SwePub
072	7	a ref2 swepub-contenttype
072	7	a art2 swepub-publicationtype
100	1	a Sanchez-Dominguez, Margarita4 aut
245	1 0	a Synthesis of CeO2, ZrO2, Ce0.5Zr0.5O2, and TiO2 nanoparticles by a novel oil-in-water microemulsion reaction method and their use as catalyst support for CO oxidation
264	1	b Elsevier BV,c 2010
338		a print2 rdacarrier
500		a QC 20110103
520		a A novel and straightforward approach for the synthesis of mesoporous inorganic oxide nanoparticles, with a small particle size and high specific surface area is reported, by using oil-in-water microemulsions, in contrast to the typically used water-in-oil microemulsion method. The new strategy implies the use of organometallic precursors, dissolved in nanometer-scale oil droplets (stabilised by surfactant), and dispersed in a continuous aqueous phase. The potential of this approach is explored for producing nanocrystalline ceria, zirconia, ceria/zirconia mixed oxide and titania. Nanocrystalline cubic CeO2 and Ce0.5Zr0.5O2 were obtained under soft conditions, whilst ZrO2 and TiO2 presented wide X-ray diffraction peaks. The specific surface area (SSA) of the obtained materials was in the order of 200-370 m(2)/g and the particle size was very small (similar to 2-3 nm). The materials were calcined at 400 degrees C after which a high SSA was maintained (100-150 m(2)/g) and the crystallinity was improved, yielding tetragonal phases for both TiO2 (anatase) and ZrO2. The potential of the calcined materials as catalyst support was explored in the CO oxidation reaction by doping the oxides with Au (2 wt%). The obtained results demonstrate the feasibility of this approach for the preparation of various supports with high SSA for catalytic purposes.
653		a Oil-in-water microemulsion
653		a Metal oxide
653		a Gold
653		a Catalysts
653		a Titania
653		a Ceria
653		a Ceria/zirconia
653		a Zirconia
653		a CO oxidation
700	1	a Liotta, Leonarda F.4 aut
700	1	a Di Carlo, Gabriella4 aut
700	1	a Pantaleo, Giuseppe4 aut
700	1	a Venezia, Anna M.4 aut
700	1	a Solans, Conxita4 aut
700	1	a Boutonnet, Magaliu KTH,Kemisk teknologi4 aut0 (Swepub:kth)u14lus4f
710	2	a KTHb Kemisk teknologi4 org
773	0	t Catalysis Todayd : Elsevier BVg 158:1-2, s. 35-43q 158:1-2<35-43x 0920-5861x 1873-4308
856	4 8	u https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-27981
856	4 8	u https://doi.org/10.1016/j.cattod.2010.05.026

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