Preparation of nanocrystalline ceramic oxide powders in the presence of anionic

2020-01-19 22:13:35

The crystal powders oxide PAMAM

责任者: Fan Zhang;Shi-Ping Yang;Wei-Ming Wang;Hong-Mei Chen;Zhi-Han Wang;Xi-Bin Yu 单位: Dept. of Chem., Shanghai Teachers Univ., China 来源出处: Materials Letters(Mater. Lett. (Netherlands)),2004/10/,58(26):3285-9 摘要: Weakly agglomerated nanocrystalline ceramic oxides (ZrO2, CeO2, and Y2O3) powders have been prepared in the presence of anionic starburst dendrimers poly(amidoamine), PAMAM (G 5.5) with surface carboxylate groups. The PAMAM dendrimer appeared to be an inhibitor for crystal formation and affected the crystal morphology and particle size during the preparation. The resultant products have been characterized by thermogravimetric analysis (TG), X-ray powder diffraction (XRD), and transmission electron microscopy (TEM). The resulting powders are highly crystalline and largely monodisperse oxide particles 关键词: ceramics;cerium compounds;crystal morphology;materials preparation;nanoparticles;nanotechnology;particle size;powder technology;powders;thermal analysis;transmission electron microscopy;X-ray diffraction;yttrium compounds;zirconium compounds;nanocrystalline ceramic oxide powders;surface carboxylate groups;PAMAM dendrimer;crystal formation;crystal morphology;particle size;thermogravimetric analysis;TGA;X-ray powder diffraction;XRD;transmission electron microscopy;TEM;monodisperse oxide particles;poly(amidoamine) anionic starburst dendrimers;ZrO2;CeO2;Y2O3