Li Lishuo, Lin Rongyi, Tong Zhangfa, Feng Qingge
National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.
Nanoscale Res Lett. 2012 Jun 15;7(1):305. doi: 10.1186/1556-276X-7-305.
Highly dispersive strontium carbonate (SrCO3) nanostructures with uniform dumbbell, ellipsoid, and rod-like morphologies were synthesized in methanol solution without any additives. These SrCO3 were characterized by X-ray diffraction, field emission scanning electron microscopy, and N2 adsorption-desorption. The results showed that the reaction temperature and the methanol/water ratio had important effects on the morphologies of SrCO3 particles. The dumbbell-like SrCO3 exhibited a Broader-Emmett-Teller surface area of 14.9 m2 g-1 and an average pore size of about 32 nm with narrow pore size distribution. The formation mechanism of the SrCO3 crystal was preliminary presented.
在无任何添加剂的甲醇溶液中合成了具有均匀哑铃状、椭球状和棒状形态的高度分散的碳酸锶（SrCO₃）纳米结构。通过X射线衍射、场发射扫描电子显微镜和N₂吸附-脱附对这些SrCO₃进行了表征。结果表明，反应温度和甲醇/水比例对SrCO₃颗粒的形态有重要影响。哑铃状SrCO₃的比表面积为14.9 m² g⁻¹，平均孔径约为32 nm，孔径分布窄。初步提出了SrCO₃晶体的形成机理。
