| 5 | PREPARATION AND MICROSTRUCTURE CHARACTERIZATION OF Ni/TiO2 NANOCOMPOSITE显示文摘Homogeneous Ni2+-doped titania gel was synthesized by a sol-gel process, and the xerogel was then ob-tained through aging and drying, leading to the formation of Ni/TiO2 nanocomposite after heat treatment under a suitable reducing atmosphere. The resulting nanocomposite was characterized by TGA-DSC, TEM, XRD and BET methods. The results show that the structure and grain size of the nanocomposites could be manipulated by altering the heat-treatment conditions, and that the nanocomposite possesses a mesoporous structure with a pore radius of ca. 28 nm and a specific surface area of 49.1 m2.g-1. It is demonstrated that the nanosized Ni dispersion in the titania matrix significantly affects the anatase-rutile phase transformation. | YuchengWu XiaWu LideZhang | 2003 | China Particuology2003，1，6： | 1 |
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