文献类型：期刊文献

英文题名：Effects of Na₄P₂O₇ on morphology of calcium carbonate nanoparticles synthesized by liquid carbonization methods

作者：Ma, J; Li, CZ; Chen, XH; Zhu, MQ

机构：[1]E China Univ Sci & Technol, Key Lab Ultrafine Mat Minist Educ, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2005

卷号：21

期号：10

起止页码：1465

外文期刊名：CHINESE JOURNAL OF INORGANIC CHEMISTRY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000232613600005)】；

语种：英文

外文关键词：calcium carbonate nanoparticles; Na4P2O7; nucleation and growth; liquid phase carbonization; particle morphology

摘要：The morphology and structure of CaCO3 nanoparticles synthesized by liquid carbonization method were analyzed by TEM, XRD and IR, etc., and the effect of Na4P2O7 on the process property and the morphology of CaCO3 nanoparticles was also investigated. The structure and morphology were strongly affected by the reaction temperature, and spindle-shaped particles were formed instead of cubic-shaped particles when the reaction temperature increased from 20 degrees C to 30 degrees C. The nucleation rate increased and the growth rate decreased when Na4P2O7 was added to the reaction slurry. The chain and stick-shaped CaCO3 nanoparticles were formed when the reaction temperatures were higher than 30 degrees C. The nucleation-growth mechanism for chain and stick-shipped nanoparticles is discussed.