[Study on the preparation of nanometer oxide SnO2 gas-sensitive material by sol-gel method].
Based on the sol-gel method, nanosized SnO2 material was prepared, and its structure and properties were studied by XRD, UV and Raman spectra. The XRD result indicated that the SnO2 particles had an ideal nanosize. The diameter of SnO2 particles increased with raising the temperature. The Raman spectrum indicated that the SnO2 nanometer material annealed at low temperature had a large number of O-empties. The UV spectra showed that the sample had stable absorption properties although the particle size changed greatly in the annealed range of 300-500 degrees C. These properties might be utilized in enhancing the performance of SnO2 gas-sensitive devices.
Zhang
Zhong-suo
ZS
Key Lab of Special Functional Material of Henan University, Kaifeng 475001, China.
Zhang
Xing-tang
XT
Chen
Yan-hui
YH
Tian
Bao-li
BL
Cheng
Ke
K
Huang
Ya-bin
YB
Du
Zu-liang
ZL
D000327:Adsorption; D005782:Gels; D036103:Nanotechnology; D010316:Particle Size; D019904:Polymethyl Methacrylate; D013059:Spectrum Analysis, Raman; D013696:Temperature; D017971:Tin Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D014961:X-Ray Diffraction
D005782:Gels; D017971:Tin Compounds; D019904:Polymethyl Methacrylate; C045358:stannic oxide