Sugiyama, Fuya; Iwamoto, Shinji published an article in 2020, the title of the article was Morphology and pore structure of zirconia particles preparedby the thermal treatment of zirconium tetra-n-propoxide in glycols.Category: alcohols-buliding-blocks And the article contains the following content:
Zirconia particles were prepared by thermal treatment of zirconium(IV) tetra-n-propoxide (ZNP) in C2-C6 glycols (Glycothermal method) at 300掳C and morphol. and pore structures of the products were examined Xray diffraction results revealed that nanocrystals of tetragonal zirconia phase were mainly obtained in all cases. However, the morphol. and pore structures of the products were quite different depending on the glycols used. The products prepared in 1,4-butanediol (1,4-BG) were spherical particles with ca. 5渭 m size while aggregations of fine particles were observed for other glycols. The samples obtained in 1,4-BG had large surface areas and showed narrow pore-size distributions in the mesopore region. To investigate the formation process of the products having such a unique morphol. and pore system, the mixtures of ZNP and glycols were heated at lower temperatures It was found that the thermal reaction of ZNP in 1,4-BG at 200掳C afforded intermediates with layered structures, which subsequently changed into nanocrystalline ZrO2 at elevated temperatures These stepwise crystallization processes attribute to the unique morphol. and pore system of the products obtained by the thermal treatment of ZNP in 1,4-BG. The experimental process involved the reaction of Pentane-1,5-diol(cas: 111-29-5).Category: alcohols-buliding-blocks
The Article related to zirconia tetra n propoxide glycol thermal treatment pore structure, Ceramics: Ceramics and other aspects.Category: alcohols-buliding-blocks
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