H2S-sensing properties of Pt-doped mesoporous indium oxide

作者：Tu, Jinchun; Li, Nan; Lai, Xiaoyong; Chi, Yue; Zhang, Yujie; Wang, Wei; Li, Xiaotian^*; Li, Jixue; Qiu, Shilun

来源：Applied Surface Science, 2010, 256(16): 5051-5055.

DOI：10.1016/j.apsusc.2010.03.055

• H2S
• Sensors
• Mesoporous materials
• Nanomaterials

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, N-2 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 2 ppm and a lower optimum working temperature of 150 degrees C. A possible mechanism was also provided to explain the improvement of the sensing properties.

• 出版日期2010-6
• 单位无机合成与制备化学国家重点实验室; 吉林大学; 海南大学