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．
Nano-sized In2O3 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.
参考文献
| [1] | Gray T J. Nature, 1948, 162: 260--265. [2] 徐甲强, 田志壮, 朱文会. 材料研究学报, 1994, 8 (3): 267--269. [3] 徐甲强, 沈瑜生, 曾桓兴, 等. 传感技术学报, 1990, 4: 10--14. [4] 徐甲强, 潘庆谊, 孙雨安, 等, 无机化学学报, 1998, 14 (3): 355--359. [5] 周益明, 忻新泉. 无机化学学报, 1999, 15 (3): 273--292. [6] 雷力旭, 忻新泉. 化学通报, 1997, 2: 1--7. [7] 徐甲强, 曾桓兴, 沈瑜生, 等. 中国稀土学报, 1991, 9 (1): 51--55. [8] 贾殿增, 杨立新, 夏熙. 化学通报, 1997, 4: 51--52. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%