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Start Over Author "Li, Jixue" Journal applied surface science
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4. H2S-sensing properties of Pt-doped mesoporous indium oxide

Author

Tu, Jinchun, Li, Nan, Lai, Xiaoyong, Chi, Yue, Zhang, Yujie, Wang, Wei, Li, Xiaotian, Li, Jixue, and Qiu, Shilun

Subjects
*INDIUM compounds, *MESOPOROUS materials, *PLATINUM, *SEMICONDUCTOR doping, *HYDROGEN sulfide, *X-ray diffraction, *CHEMICAL detectors, *NANOSTRUCTURED materials
Abstract

Abstract: Pt-doped mesoporous indium oxide (In2O3) has been successfully obtained by a simple and effective in situ nanocasting method. The resultant samples were characterized by XRD, FE-SEM, TEM, N2 physisorption, XPS and EDX. The gas sensing properties for hydrogen sulfide (H2S) of the Pt-doped mesoporous In2O3 specimens were also examined. The results exhibit those In2O3 specimens possess much higher response to H2S even at low concentration of 2ppm and a lower optimum working temperature of 150°C. A possible mechanism was also provided to explain the improvement of the sensing properties. [Copyright &y& Elsevier]

Published
2010
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