Dandelion-like SiO2@SnO2/伪-Fe2O3 hollow spheres formed by growing of 伪-Fe2O3 nanotubes on low crystalline SiO2@SnO2 and their enhanced acetone-sensing properties
文献类型：期刊论文
| 作者 | Hao, Shuaijun3; Wang, Hong3; Yang, Ruisong3; Liu, Di1; Wan, Jiawei2; Liu, Xiaohua3; Zhang, Qiang3; Chen, Xinkuan3 |
| 刊名 | Sensors and Actuators, B: Chemical
 |
| 出版日期 | 2021-02-15 |
| 卷号 | 329 |
| ISSN号 | 9254005 |
| 关键词 | Acetone - Chemical detection - Gas detectors - Microspheres - Specific surface area - Silicon - Mesoporous materials - Gases - Morphology - Silica - Pore size |
| DOI | 10.1016/j.snb.2020.129152 |
| 英文摘要 | Herein, dandelion-like SiO2@SnO2/伪-Fe2O3 hollow microspheres with average size of 600 nm were successfully synthesized by an in-site hydrothermal method. The 伪-Fe2O3 nanotubes with average diameters of 30 nm were epitaxially grown on the low crystalline mesoporous SiO2@SnO2 hollow spheres. The hollow microspheres owned mesoporous structure, while the pore size and the specific surface area were 8.8 nm and 86.7 m2/g, respectively. The influence of the Fe3+ initial concentration on structure, morphology and gas-sensing property of the as-synthesized products were studied. Compared with 伪-Fe2O3, SiO2@SnO2, and other SiO2@SnO2/伪-Fe2O3 composites, the sensor based on SiO2@SnO2/伪-Fe2O3-0.15 (the concentration of Fe3+ was 0.15 渭M) showed excellent gas sensitivity, which had high response value (41 towards 100 ppm acetone), faster response and recovery time (7 s and 23 s) and a lower detection limit. The remarkable improvement of gas-sensing performance could be attributed to the unique mesoporous SiO2@SnO2/伪-Fe2O3 hollow structure with 伪-Fe2O3 nanotubes, the large specific surface area, the catalysis of 伪-Fe2O3 and the synergistic effect of SiO2, SnO2 and 伪-Fe2O3. The sensor based on dandelion-like SiO2@SnO2/伪-Fe2O3 hollow microspheres would be a potential application in acetone gas detection. 漏 2020 Elsevier B.V. |
| 学科主题 | Nanotubes |
| 项目编号 | This work is supported by National Natural Science Foundation of China ( 51272165 , 51672138 , 51802306 , and 51572177 ), and Research Foundation of Sichuan University of Science and Engineering ( 2016RCL05 ). |
| 出版者 | Elsevier B.V. |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/60305]  |
| 作者单位 | 1.Department of Chemistry, Tsinghua University, Beijing; 100084, China 2.State Key Laboratory of Biochemical Engineering, CAS Center for Excellence in Nanoscience, Institute of Process Engineering, Chinese Academy of Sciences, Beijing; 100190, China 3.School of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong; 643000, China |
| 推荐引用方式 GB/T 7714 | Hao, Shuaijun,Wang, Hong,Yang, Ruisong,等. Dandelion-like SiO2@SnO2/伪-Fe2O3 hollow spheres formed by growing of 伪-Fe2O3 nanotubes on low crystalline SiO2@SnO2 and their enhanced acetone-sensing properties[J]. Sensors and Actuators, B: Chemical,2021,329. |
| APA | Hao, Shuaijun.,Wang, Hong.,Yang, Ruisong.,Liu, Di.,Wan, Jiawei.,...&Chen, Xinkuan.(2021).Dandelion-like SiO2@SnO2/伪-Fe2O3 hollow spheres formed by growing of 伪-Fe2O3 nanotubes on low crystalline SiO2@SnO2 and their enhanced acetone-sensing properties.Sensors and Actuators, B: Chemical,329. |
| MLA | Hao, Shuaijun,et al."Dandelion-like SiO2@SnO2/伪-Fe2O3 hollow spheres formed by growing of 伪-Fe2O3 nanotubes on low crystalline SiO2@SnO2 and their enhanced acetone-sensing properties".Sensors and Actuators, B: Chemical 329(2021). |
入库方式： OAI收割
来源：过程工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。