@article{oai:nitech.repo.nii.ac.jp:00002210, author = {小林, 克敏 and 羽田, 政明 and Haneda, Masaaki and 小澤, 正邦}, journal = {セラミックス基盤工学研究センター年報 = Annual report of the Ceramics Research Laboratory Nagoya Institute of Technology}, month = {Mar}, note = {Monodispersed ceria nanocrystals have been synthesized by an oleate-modified precipitation method combined with a hydrothermal treatment at 200℃. TEM observation indicated that ceria nanoparticles with low-crystallinity were produced by synthesis at room temperature, which were crystallized by subsequent heat treatment to form ceria nanocrystals. Produced ceria nanocrystals were well dispersed in a nonpolar solvent and were hardly agglomerated. TEM observation and Raman spectroscopy clarified that the size of ceria nanocrystals was in the range of 2-6 nm. Interparticle distance of ceria nanocrystals twodimensionally aligned was in the range of 1.5-4 nm, which corresponds to the exclusive distance of oleic chains. Oleate-modified ceria nanocrystals exhibited strong ? uorescence by green-laser excitation. Fluorescent behavior of ceria nanocrystals indicated that oleate detachment from the ceria surface and particle growth of ceria nanocrystals could be induced by laser irradiation., application/pdf}, pages = {1--5}, title = {オレイン酸修飾沈殿法を用いたセリアナノ結晶の水熱合成}, volume = {11}, year = {2012}, yomi = {コバヤシ, カツトシ and ハネダ, マサアキ and オザワ, マサクニ} }