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Chem. J. Chinese Universities ›› 2012, Vol. 33 ›› Issue (05): 1036.doi: 10.3969/j.issn.0251-0790.2012.05.031

• Physical Chemistry • Previous Articles     Next Articles

Controlled Synthesis of Nd2(CO3)3?8H2O Particles in the Media of Reverse Microemulsions

ZHU Wen-Qing1, XING Xi-Ping1, ZHANG Chao1, YUAN Yu-Kun1, CHEN Ya-Shao2   

  1. 1. College of Environmental and Chemical Engineering, Xian Polytechnic University, Xi'an 710048, China;
    2. Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Materials Science, Shaanxi Normal University, Xian 710062, China
  • Received:2011-06-09 Online:2012-05-10 Published:2012-05-10

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Abstract: Nd2(CO3)3?8H2O particles were prepared in water/oil(W/O) reverse microemulsion composed of cetyltrimethylammonium bromide(CTAB), n-butanol, n-octane, Nd(NO3)3?6H2O aqueous solution, Na2CO3 aqueous solution by the microemulsion-assisted solvothermal method. The influences of the molar ratio of water to CTAB and the concentration of Nd(NO3)3 on the morphologies and sizes of Nd2(CO3)3?8H2O particles were studied. The structures, morphologies and sizes of the nanoparticles were characterized by X-ray powder diffraction(XRD), differential scanning calorimetry and thermal gravimetric analysis(DSC-TGA), scanning electron microscope(SEM) and transmission electron microscope(TEM). The possible formation mechanism of the morphologies structure of Nd2(CO3)3?8H2O was proposed. The Nd2(CO3)3 particles with polyhedral, fishtail-like and needle-like shapes were controlledly synthesized via the microemulsion-assisted solvothermal method by regulating the molar ratio of water to CTAB. The size of the needle-like Nd2(CO3)3?8H2O particles decreased with increase of the concentration of Nd(NO3)3.

Key words: Reverse microemulsion, Microemulsion-assisted solvothermal method, Nd2(CO3)3?8H2O, Controlled synthesis

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