Ammonia sensing properties of two-dimensional tin disulphide/tin oxides (SnS2/SnO2-x) mixed phases
文献类型：期刊论文
| 作者 | Leonardi, Salvatore Gianluca; Wlodarski, Wojtek; Li, Yongxiang; Donato, Nicola; Bonavita, Anna; Neri, Giovanni |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2019-04-15 |
| 卷号 | 781页码:440 |
| 关键词 | 2D-SnS2 flakes Heterostructure Gas sensor Ammonia NH3 |
| ISSN号 | 0925-8388 |
| DOI | 10.1016/j.jallcom.2018.12.110 |
| 文献子类 | Article |
| 英文摘要 | 2D-SnS2 flakes were synthesized via a wet chemical route and deposited as a thin film onto the Pt-interdigitated contacts of a ceramic substrate with aim to fabricate a conductometric sensor. The 2D-SnS2 sensing film was then annealed "in situ" under controlled conditions at different temperatures up to 400 degrees C. The morphological, microstructural and electrical properties of the sensing film, before and after the thermal treatment, were characterized by "in situ" techniques. SEM analysis has shown that the 2D flake morphology was maintained after thermal treatments, whereas Raman and EDX analysis have highlighted the partial/total modification of the SnS2 phase towards the SnO2. As a consequence of the formation of 2D-SnS2/SnO2-x mixed phases, a dramatic change of the electrical properties of the sensing film has been also observed. Conductometric gas sensors based on hybrid SnS2-SnO2-x nanoflakes were then obtained by simple self-annealing treatments of 2D-SnS2 film directly on the sensor substrate. The fabricated sensors were tested toward ammonia (NH3) as target gas. Results evidence that increasing the annealing temperature of the 2D-SnS2 sensitive film, the electrical resistance of the sensing layer decreases while the response towards ammonia increases, showing the maximum at an annealing treatment of 250 degrees C. This behaviour was explained on the basis of the morphological, microstructural and electrical modifications observed, highlighting the role of 2D-SnS2/SnO2-x mixed phases in determining the sensing properties towards ammonia. (C) 2018 Elsevier B.V. All rights reserved. |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE SA |
| 源URL | [http://ir.sic.ac.cn/handle/331005/27189]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Leonardi, Salvatore Gianluca,Wlodarski, Wojtek,Li, Yongxiang,et al. Ammonia sensing properties of two-dimensional tin disulphide/tin oxides (SnS2/SnO2-x) mixed phases[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2019,781:440. |
| APA | Leonardi, Salvatore Gianluca,Wlodarski, Wojtek,Li, Yongxiang,Donato, Nicola,Bonavita, Anna,&Neri, Giovanni.(2019).Ammonia sensing properties of two-dimensional tin disulphide/tin oxides (SnS2/SnO2-x) mixed phases.JOURNAL OF ALLOYS AND COMPOUNDS,781,440. |
| MLA | Leonardi, Salvatore Gianluca,et al."Ammonia sensing properties of two-dimensional tin disulphide/tin oxides (SnS2/SnO2-x) mixed phases".JOURNAL OF ALLOYS AND COMPOUNDS 781(2019):440. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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