Particle size–activity relationship for CoFe2O4 nanoparticle CO oxidation catalysts
- 20 October 2008
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of Materials Chemistry
- Vol. 18 (45) , 5518-5523
- https://doi.org/10.1039/b807412g
Abstract
The inverse spinel CoFe2O4 is prepared as nanoparticles with a range of controlled sizes. Synthesis is performed using solvothermal and coprecipitation chemistry, and a two capping group coprecipitation procedure using oxalic acid and ethylenediamine or triethanolamine is shown to afford sub-10 nm, controlled size nanoparticles. A pronounced particle size–activity relationship is observed for CO oxidation catalysis for the studied range of particle sizes. In addition, these unsupported nanoparticle catalysts readily undergo activation during catalysis and exhibit both structural and performance stability under the test reaction conditions.Keywords
This publication has 32 references indexed in Scilit:
- Highly Luminescent Eu3+ Chelate Nanoparticles Prepared by a Reprecipitation−Encapsulation MethodLangmuir, 2007
- A General Nonaqueous Route to Binary Metal Oxide Nanocrystals Involving a C−C Bond CleavageJournal of the American Chemical Society, 2005
- Recent Advances in the Liquid-Phase Syntheses of Inorganic NanoparticlesChemical Reviews, 2004
- Preparation of Y2O3:Eu3+ nanoparticles in reverse micellar systems and their photoluminescence propertiesJournal of Colloid and Interface Science, 2004
- Synthesis of highly magnetic iron nanoparticles suitable for field structuring using a β-diketone surfactantJournal of Magnetism and Magnetic Materials, 2004
- A General Soft‐Chemistry Route to Perovskites and Related Materials: Synthesis of BaTiO3, BaZrO3, and LiNbO3 NanoparticlesAngewandte Chemie International Edition in English, 2004
- Gold as a novel catalyst in the 21st century: Preparation, working mechanism and applicationsGold Bulletin, 2004
- Synthesis of Barium Ferrite Ultrafine Particles by Coprecipitation in the Presence of Polyacrylic AcidJournal of Colloid and Interface Science, 2001
- Synthesis of superparamagnetic MgFe2O4 nanoparticles by coprecipitationJournal of Magnetism and Magnetic Materials, 1999
- New Syntheses of Cobalt Ferrite Particles in the Range 2−5 nm: Comparison of the Magnetic Properties of the Nanosized Particles in Dispersed Fluid or in Powder FormChemistry of Materials, 1996