Citation: Li GU, Yuan Liang WANG, Li Ling TANG, Jiu Jin ZHU, Jun Han WU. Preparation of La-Ti Composite Oxide Nanocrystal and Examination of Their Surface Topography with Atomic Force Microscope[J]. Chinese Chemical Letters, ;2003, 14(4): 429-432. shu

Preparation of La-Ti Composite Oxide Nanocrystal and Examination of Their Surface Topography with Atomic Force Microscope

1.
National Key Lab on Biomechanics and Tissue Engineering under the State Education Ministry, Chongqing University Bioengineering College, Chongqing 400044;
2.
Institute of Chemistry, Chinese Academy of Sciences, Beijing 10083

Received Date: 24 May 2002

Fund Project: This project was supported by the National Natural Science Foundation of China (1972003).

With sol-gel method, nanometer La-Ti composite oxide was successfully prepared at a low temperature (750~800℃) using polyethylene glycol as dispersant. By means of atomic force microscope, the surface pattern, particle size distribution, and specific surface area were studied. The compound particle surface appears as a smooth sheet, the mean size of the compound is 25.38 nm. On the specific surface, the particle erects at a height of 4.69 nm. The surface area is 58.90 nm². The La-Ti composite oxide nanocrystal prefers to narrow and even particle size distribution and the homogeneity of surface topography.
- La-Ti composite oxide,
- nanocrystal,
- surface pattern,
- atomic force microscope
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