稀土学报（英文版）
稀土學報（英文版）
희토학보（영문판）
JOURNAL OF RARE EARTHS
2014年
6期
553-557
,共5页
朱文庆%瞿芳%陈浩军%李卓%刘斌
硃文慶%瞿芳%陳浩軍%李卓%劉斌
주문경%구방%진호군%리탁%류빈
micro-emulsion%homogeneous precipitation%SmOHCO3%rare earths
SmOHCO3micro/nano particles were prepared in water/oil (W/O) reverse microemulsion composed of cetyltrimethyl ammonium bromide (CTAB), n-octane, n-butanol, Sm(NO3)3·6H2O and urea aqueous solution by the coupling route of homogeneous precipitation with microemulsion. The nanoparticles were characterized and analyzed by X-ray powder diffraction (XRD), thermal gravimetric and differential thermal gravimetric analysis (TG-DTG), Fourier transform infrared absorption spectra (FT-IR) and scan-ning electron microscope (SEM). The results showed that the phase SmOHCO3 micro/nano particles was in agreement with pure or-thorhombic phase. The different morphologies of SmOHCO3 micro/nano particles with good monodispersity and size were obtained by regulating the reaction temperature and reaction time. Possible formation mechanisms of the morphological structure of SmO-HCO3 were proposed and discussed.
