Preparation, Gas-Sensing and Acid-Base Properties of Hexagonal In2O3 Nano-Particles

被引：0
作者：
Fan Yingju [1 ]
Li Jiazhi [1 ]
Sun Zhongxi [1 ]
机构：
[1] Univ Jinan, Shandong Prov Key Lab Fluorine Chem & Chem Mat, Sch Chem & Chem Engn, Jinan 250022, Peoples R China
来源：
ACTA CHIMICA SINICA | 2011年 / 69卷 / 14期
关键词：
semiconductor material; indium oxide; gas sensors; surface hydroxyl site; acid-base properties; CORUNDUM-TYPE IN2O3; AMBIENT-PRESSURE; METAL-OXIDES; INOOH; NANOCRYSTALS; MICROSPHERES; NANOWIRES; INJECTION; MECHANISM; NANOCUBES;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Hexagonal In2O3 nanostructures with star-like morphology were synthesized using dodetyl amine (DDA) and oleic acid as template through a surfactant-assisted solvothermal process, characterized by TEM, SEM, XRD, IR, and TG/DTA. Testing results indicate that In2O3 shows an excellent response and selectivity to ethanol vapor at 300 degrees C. The acid-base properties of In2O3 were studied by potentiometric titration technique. The concentration of surface hydroxyl was calculated. Within the range of pH-=5 similar to 7.3, the preponderant surface component of In2O3 was InOH.
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页码：1667 / 1672
页数：6
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