材料期刊网

Surfactant Assisted Hydrothermal Synthesis of CdSe Nanostructural Materials

Ganganagappa Nagaraju

材料科学技术（英文）

CdSe/CTAB composite nanostructural materials were successfully synthesized at 160-200 °C for 2 days through a facile surfactant (cetyl trimethyl ammonium bromide-CTAB) assisted hydrothermal method using cadmium acetate and sodium selenate as precursor. The obtained products were characterized by X-ray diffraction, energy dispersive X-ray analysis, Fourier transform infrared spectroscopy and thermo gravimetric analysis. Optical properties were studied by photoluminescence and UV-visible spectroscopy and morphology was investigated by scanning electron microscopy.

关键词: Hydrothermal

Facile Hydrothermal Synthesis and Growth Kinetics of Fe-Based Magnetic Nanoparticles

C.X. You , J.C. Zhang

金属学报(英文版)

The facile hydrothermal method was used to synthesize Fe3O4 nanoparticles with an average diameter of 11nm. The pure body-centered cubic (bcc)-Fe nanoparticles were prepared by reduction of Fe3O4 nanoparticles powder in H2 atmosphere. The structure, morphology and magnetic properties of the products were characterized by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), thermogravimetric analysis-differential scanning calorimetry (TGA-DSC) and vibrating sample magnetometer (VSM). The results showed that the as-prepared Fe3O4 nanoparticles had a relatively homogeneous size. The particle diameters became bigger with the increase of reaction time. The growth kinetics of the Fe3O4 nanoparticles was also briefly discussed. The products exhibited superparamagnetic properties at room temperature and the specific saturation magnetization was dependent on the particle sizes.

关键词: Fe－based nanoparticles , null , null , null

Surfactant Assisted Hydrothermal Synthesis of CdSe Nanostructural Materials

材料科学技术（英文）

关键词: 纳米结构材料 , 水热法合成 , 表面活性剂 , CdSe , 十六烷基三甲基溴化铵 , 傅立叶变换红外光谱 , 扫描电子显微镜 , X-射线衍射