Nano Archive

Synthesis of nano-SnO2/SBA-15 composite as a highly sensitive semiconductor oxide gas sensor

Yang, Jun and Hidajat, Kus and Kawi, Sibudjing (2008) Synthesis of nano-SnO2/SBA-15 composite as a highly sensitive semiconductor oxide gas sensor. Materials Letters, 62 (8-9). 1441 - 1443.

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Official URL: http://www.sciencedirect.com/science/article/B6TX9...

Abstract

A simple method has been applied to synthesize nano-SnO2/SBA-15 composites by wet impregnation of SnCl2 using SBA-15 as the nanoporous sensor support. After mixing SBA-15 with SnO2, the mesoporous structure of SBA-15 could still be well maintained. The sensor made of the nano-SnO2/SBA-15 composite displays superior sensitivities, and the sensitivity to 1000 ppm of H2 could be higher than 1400, which is almost 40 times more sensitive than that of pure SnO2 sensor. This finding provides a cheap and effective way to apply nanoporous materials to remarkably enhance the sensitivity of semiconductor metal oxide gas sensors.

Item Type:Article
Uncontrolled Keywords:Mesoporous materials; SnO2; Gas sensor; Semiconductors; Nanocomposites
Subjects:Material Science > Nanofabrication processes and tools
Analytical Science > Nanotechnology for sensing and actuating
Material Science > Nanostructured materials
ID Code:6667
Deposited By:SPI
Deposited On:10 Feb 2010 09:11
Last Modified:10 Feb 2010 09:11

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