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Citation: Li Quan, Zeng Guangfu, Xi Shiquan. Heat Treatment and Microstructure of Nanosized Stannic Oxide Powders[J]. Chinese Journal of Applied Chemistry, ;1995, 12(2): 67-71. shu

Heat Treatment and Microstructure of Nanosized Stannic Oxide Powders

Laboratory of Applied Spectroscopy, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022

Received Date: 30 August 1994
Revised Date: 9 December 1994

Nanosized stannic oxide powders were prepared by sol-gel method. The mi-crostructure change of the ultrafine particles after heat-treatment at 300~800℃ has been in-vestigated by XRD,TEM,TG-DTA,and FT-IR techniques. It is found that the intensity of the transverse optical mode of Sn-O streching vibration increased with the calcining tempcr-ature and the bonding vibration of O-Sn-O showed a blue shift. The changes are strongly affected by the size, shape, and the state of aggregation of the ultrafine particles.
- stannic oxide,
- nanosized particle,
- heat-treatment,
- microstructure,
- IR
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