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Morphology control of cerium oxide particles synthesized via a supercritical solvothermal method

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dc.contributor.authorDevaraju, M.K.
dc.contributor.authorYin, S.
dc.contributor.authorSato, T.
dc.date.issued2009
dc.description.abstractRod and sphere-like CeO(2) particles were obtained via a supercritical solvothermal method using CeCl(3) center dot 7H(2)O and Ce(NO(3))(3) center dot 6H(2)O as cerium sources in ethanol and methanol at 400 degrees C for 15 min followed by calcination in air. The rodlike particles were 200-400 nm in diameter and 1-2 mu m in length: The spherical particles-were 300-500 nm in diameter. The as-prepared rodlike particles using CeCl(3) center dot 7H(2)O consisted of mixtures of Ce(OH)(3) and Ce(CH(3)COO)(3) and were converted to rodlike CeO(2) by calcination in air at 500 degrees C. In contrast, the spherical particles prepared using Ce(NO(3))(3) center dot 6H(2)O consisted of fluorite-structured CeO(2) The possible formation mechanism was discussed on the basis of the effect of reaction time on the morphology at 400 degrees C. The cod and spherelike CeO(2) particles exhibited strong UV absorption below 400 nm, and the absorbance edges extend to nearly 500 nm. The rod and spherelike CeO(2) particles exhibited near-UV emission at 360 nm and blue emission at 465 nm with higher emission intensity compared.. to the commercial CeO(2) sample.
dc.identifier.citationACS applied materials & interfaces, 2009; 1(11):2694-2698
dc.identifier.doi10.1021/am900574m
dc.identifier.issn1944-8244
dc.identifier.issn1944-8252
dc.identifier.urihttps://hdl.handle.net/11541.2/129785
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.relation.fundingMinistry of Education, Culture, Sports, Science and Technology
dc.relation.fundingG-COE
dc.rightsCopyright 2009 American Chemical Society
dc.source.urihttps://doi.org/10.1021/am900574m
dc.subjectsupercritical
dc.subjectsolvothermal
dc.subjectsphere
dc.subjectrod
dc.subjecttemplate free
dc.subjectfast synthesis
dc.titleMorphology control of cerium oxide particles synthesized via a supercritical solvothermal method
dc.typeJournal article
pubs.publication-statusPublished
ror.mmsid9916130908501831

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