Room-temperature hydrogen sensing properties of SnO(2) -coated multi-walled carbon nanotubes
文献类型：期刊论文
| 作者 | X. Sun ; H. T. Fang ; H. L. Yu ; Y. Chu ; B. Y. Zhang ; J. H. Du ; D. W. Wang ; F. Li ; F. P. Wang |
| 刊名 | New Carbon Materials
 |
| 出版日期 | 2010 |
| 卷号 | 25期号:3页码:218-224 |
| ISSN号 | 1007-8827 |
| 关键词 | SnO(2) Coat Multi-wall carbon nanotubes Hydrogen sensing properties tin oxide photocatalytic activity polyol process gas sensor composite nanocomposites fabrication performance electrodes reduction |
| 中文摘要 | A SnCl(2) solution was used to prepare SnO(2)-coated multi-walled carbon nanotubes (SnO(2)/MWCNTs), and their hydrogen sensing properties at room temperature was studied. SEM and TEM observations indicate that SnO(2) nanoparticles with a size of 5 nm are uniformly coated on the MWCNTs, forming a continuous SnO(2) coating. The SnO(2)/MWCNTs are sensitive to 10(-4) hydrogen at room temperature. During the sensing measurement at room temperature for 10(-3) hydrogen mixed with argon gas, the current change with gas concentration is reversed after the mixed gas is switched to air. This can be ascribed to the reaction between O(2) in air and residual H(2) around the SnO(2)/MWCNTs to form adsorbed H(2)O and the subsequent desorption of H(2)O by substitution adsorption of O(2) in air. The H(2)O adsorption may lead to a decrease of the electric resistance of SnO(2)/MWCNTs and thus an increase of current measured. The reversal of current implies that the SnO(2)/MWCNTs may possess a good sensitivity to humidity at room temperature. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/31460]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | X. Sun,H. T. Fang,H. L. Yu,et al. Room-temperature hydrogen sensing properties of SnO(2) -coated multi-walled carbon nanotubes[J]. New Carbon Materials,2010,25(3):218-224. |
| APA | X. Sun.,H. T. Fang.,H. L. Yu.,Y. Chu.,B. Y. Zhang.,...&F. P. Wang.(2010).Room-temperature hydrogen sensing properties of SnO(2) -coated multi-walled carbon nanotubes.New Carbon Materials,25(3),218-224. |
| MLA | X. Sun,et al."Room-temperature hydrogen sensing properties of SnO(2) -coated multi-walled carbon nanotubes".New Carbon Materials 25.3(2010):218-224. |
入库方式： OAI收割
来源：金属研究所
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