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室温固相合成In2O3及其气敏性能研究
引用本文:徐甲强,刘艳丽,牛新书.室温固相合成In2O3及其气敏性能研究[J].无机材料学报,2002,17(2):367-370.
作者姓名:徐甲强  刘艳丽  牛新书
作者单位:郑州轻工业学院化学工程系,河南师范大学化学与环境科学学院,河南师范大学化学与环境科学学院 郑州 450002,河南新乡453002,河南新乡453002
基金项目:河南省自然科学基金(004031300)
摘    要:以无机物InCl3·4H2O和NaOH为原料,在遵守热力学限制的前提下,用室温固相化学反应直接合成了半导体金属氧化物In2O3的纳米粉体,用X射线衍射技术和透射电子显微镜对产物的物相、形貌进行了表征和观察,并用静态配气法测定了材料的气敏性能.

关 键 词:三氧化二铟  气敏材料  室温  固相化学反应
文章编号:1000-324X(2002)02-0367-04
收稿时间:2001-4-5
修稿时间:2001年4月5日

Gas Sensitive Properties of Nanometer Materials In2O3 Synthesized by Solid-State Reaction at Room Temperature
XU Jia-Qiang,LIU Yan-Li,NIU Xin-Shu.Gas Sensitive Properties of Nanometer Materials In2O3 Synthesized by Solid-State Reaction at Room Temperature[J].Journal of Inorganic Materials,2002,17(2):367-370.
Authors:XU Jia-Qiang  LIU Yan-Li  NIU Xin-Shu
Affiliation:1.;ZhengzhouInstituteofLightIndustry;ZhengzhouHenan450002;China;2.CollegeofChemistry&EnvironmentalScience;HenanNormalUniversity;XinxiangHenan453002;China
Abstract:Nano-sized In203 powders were prepared by the solid-state reaction method. The crystal structure and ceramic microstructure of the powders were studied by XRD and TEM. The principle of the solid-state reaction at room temperature and the gas sensitivity of In2O3 were also discussed. The results show that the mean grain size of the powders is about 25nm. The In2O3 sensors show a higher sensitivity to ethanol than to H2, LPG, i-C4H10, CH4 and gasoline. The rate of response and recovery is quick.
Keywords:In2O3  gas-sensing material  room temperature  solid-state reaction
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