节点文献
室温固相合成In2O3及其气敏性能研究
Gas Sensitive Properties of Nanometer Materials In2O3 Synthesized by Solid-State Reaction at Room Temperature
【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．
【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.
【关键词】 三氧化二铟；
气敏材料；
室温；
固相化学反应；
【Key words】 In2O3； gas-sensing material； room temperature； solid-state reaction；
【Key words】 In2O3； gas-sensing material； room temperature； solid-state reaction；
【基金】 河南省自然科学基金（004031300）
- 【文献出处】 无机材料学报 ,Journal of Inorganic Materials , 编辑部邮箱 ,2002年02期
- 【分类号】TP212
- 【被引频次】47
- 【下载频次】248