Construction and enhanced low-temperature H2S-sensing performance of novel hierarchical CuO@WO3 nanocomposites
文献类型：期刊论文
| 作者 | Yin, Li; Qu, Geping; Guo, Peng; Zhang, Rui; Sun, Jing; Chen, Deliang |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2019-05-15 |
| 卷号 | 785页码:367 |
| 关键词 | CuO@WO3 nanocomposite Hydrogen sulfide Gas sensor Low-temperature sensing p-n heterojunction |
| ISSN号 | 0925-8388 |
| DOI | 10.1016/j.jallcom.2019.01.037 |
| 文献子类 | Article |
| 英文摘要 | Novel hierarchical CuO@WO3 nanocomposites with various CuO contents (0-10 wt%) were synthesized by anchoring discrete CuO nanoparticles (CuO NPs) on WO3 nanoplates under a hydrothermal condition for low-temperature detection of H2S gas. In the CuO@WO3 nanocomposite, CuO NPs are uniformly distributed on WO3 nanoplates, forming a p-n CuO/WO3 heterojunction. The CuO@WO3 nanocomposites show highly sensitive to H2S gas at a low operating-temperature range (25-100 degrees C). The 5 wt%CuO@WO3 sensor shows a high response of 830 when exposed to a 10 ppm H2S gas at 100 degrees C. At even lower temperatures (e.g., 50 degrees C and 25 degrees C), the 5 wt%CuO@WO3 sensor shows an obvious response to 1 ppm H2S, and their response time is less than 3 min. In addition, the CuO@WO3 sensor exhibits a highly selective response to H2S, compared with SO2, CO, CH4, H-2, and organic vapors, operating at 25-100 degrees C. The improvement of the CuO@WO3 sensor in H2S detection at a low operating temperature is ascribed to the unique hierarchical p-n heterojunctions formed between the CuO NPs and WO3 nanoplates. (C) 2019 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/331005/27118]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Yin, Li,Qu, Geping,Guo, Peng,et al. Construction and enhanced low-temperature H2S-sensing performance of novel hierarchical CuO@WO3 nanocomposites[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2019,785:367. |
| APA | Yin, Li,Qu, Geping,Guo, Peng,Zhang, Rui,Sun, Jing,&Chen, Deliang.(2019).Construction and enhanced low-temperature H2S-sensing performance of novel hierarchical CuO@WO3 nanocomposites.JOURNAL OF ALLOYS AND COMPOUNDS,785,367. |
| MLA | Yin, Li,et al."Construction and enhanced low-temperature H2S-sensing performance of novel hierarchical CuO@WO3 nanocomposites".JOURNAL OF ALLOYS AND COMPOUNDS 785(2019):367. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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