Synthesis of uniform quasi-octahedral CeO2 mesocrystals via a surfactant-free route
2011 (English)In: Journal of nanoparticle research, ISSN 1388-0764, E-ISSN 1572-896X, Vol. 13, no 11, 5879-5885 p.Article in journal (Refereed) Published
A facile surfactant-free nonaqueous method is presented to prepare uniform quasi-octahedral ceria, CeO 2 , mesocrystals, in which only Ce(NO 3 ) 3 and octanol were used as the reactants at a reaction temperature of 150 Â°C. CeO 2 sample synthesized using this technique consists of well-dispersed quasi-octahedrons and exhibits an uniform size and morphology. Based on structural characterization, it is proposed that the CeO 2 mesostructure was formed by self-assembly of primary nanocrystals based on unique 3D oriented-attachment mechanism. Optical characterization exhibited a strong quantum confinement, revealing small size of primary nanocrystals. The thermal stability and UVâ€“Vis study reveal CeO 2 mesocrystal has various potential for high temperature applications and optical apparatus applications.
Place, publisher, year, edition, pages
2011. Vol. 13, no 11, 5879-5885 p.
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-50720DOI: 10.1007/s11051-011-0416-xISI: 000297351600034ScopusID: 2-s2.0-84857039371OAI: oai:DiVA.org:kth-50720DiVA: diva2:462489
QC 201112282011-12-072011-12-072012-05-29Bibliographically approved