Surface characterization study on sno2 powder modified by thiourea
文献类型：期刊论文
| 作者 | Liu, FM; Quan, BF; Liu, ZQ; Chen, LH |
| 刊名 | Materials chemistry and physics
 |
| 出版日期 | 2005-10-15 |
| 卷号 | 93期号:2-3页码:301-304 |
| 关键词 | Thiourea Surface modification Sno2 nanocrystalline Stability |
| ISSN号 | 0254-0584 |
| DOI | 10.1016/j.matchemphys.2005.03.058 |
| 通讯作者 | Quan, bf() |
| 英文摘要 | The sno2 material prepared by sol-gel method was modified by thiourea solution in different concentrations (0.05, 0.1 and 0.2 mol dm(-3)). then the structure and the average grain size of the sno2 material were investigated by x-ray power diffraction. in order to understand the nature of the species on the sno2 surfaces, the thermal gravimetric and differential thermal analyzer (tg-dta) and ir spectra of these modified and unmodified sample were taken. the result indicates that the stability of oxygen adsorbed on thiourea-modified surface was improved and the amount of surface hydroxyl groups adsorbed on this grain surface was decreased. the thiourea adsorbed on sno2 grain surface is translated to so42- after sintered at 600 degrees c. so42- species stabilize the resistance of the sno2 sensor. (c) 2005 elsevier b.v. all rights reserved. |
| WOS关键词 | CO GAS SENSORS ; TEMPERATURE-PROGRAMMED DESORPTION ; SENSING PROPERTIES ; NANOPOWDERS ; STABILITY ; MECHANISM |
| WOS研究方向 | Materials Science |
| WOS类目 | Materials Science, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000230538000010 |
| 出版者 | ELSEVIER SCIENCE SA |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2426291 |
| 专题 | 半导体研究所 |
| 通讯作者 | Quan, BF |
| 作者单位 | 1.Jilin Univ, Coll Elect Sci & Engn, Changchun 130023, Peoples R China 2.Chinese Acad Sci, Inst Semicond, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, FM,Quan, BF,Liu, ZQ,et al. Surface characterization study on sno2 powder modified by thiourea[J]. Materials chemistry and physics,2005,93(2-3):301-304. |
| APA | Liu, FM,Quan, BF,Liu, ZQ,&Chen, LH.(2005).Surface characterization study on sno2 powder modified by thiourea.Materials chemistry and physics,93(2-3),301-304. |
| MLA | Liu, FM,et al."Surface characterization study on sno2 powder modified by thiourea".Materials chemistry and physics 93.2-3(2005):301-304. |
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来源：半导体研究所
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