微纳米研究所所长郑直教授与张翼东老师在美国化学会(American Chemical Society)主办的Ind. Eng. Chem. Res.杂志发表论文，题为：Highly Sensitive and Selective Alcohol Sensors based on Ag-Doped In2O3 Coating。  

研究所对此表示祝贺！  

Highly Sensitive and Selective Alcohol Sensors based on Ag-Doped In2O3 Coating  

Yidong Zhang, Zhi Zheng,* and Fengling Yang  

Institute of Surface Micro and Nano Materials, Xuchang UniVersity, Xuchang, Henan ProVince,  

461000, People’s Republic of China  

In this paper, we describe how to synthesize Ag-doped In2O3 nano particles and fabricate highly sensitive and selective alcohol sensors by solid-state reaction treatment from In(NO3)3 ·5H2O and AgNO3 mixtures at room temperature followed by calcination at 600 °C for 2 h. The samples were characterized by X-ray diffraction, scanning electronic microscopy, X-ray photoelectron spectroscopy. The diameter of the as-synthesized particle diameter is ∼80 nm under different dosage of Ag doping. In comparison with pure In2O3 sensor, all of the Ag-doped sensors showed better sensing performance in sensitivity, selectivity and optimum operating temperature. The effects of Ag content, alcohol vapor concentration, and operating temperature on the sensing characteristics of the Ag-doped In2O3 sensors were also investigated. We found that the Ag-doped sensor containing 10.0 mol % Ag exhibited the maximum sensitivity to alcohol vapor at 150 °C. A possible mechanism for the influence of Ag on the alcohol-sensing properties of Ag-doped In2O3 sensors was proposed.