Effects of graphene on the microstructures of SnO2@rGO nanocomposites and their formaldehyde-sensing performance
文献类型：期刊论文
| 作者 | Rong, Xiaoru; Chen, Deliang1; Qu, Geping; Li, Tao1; Zhang, Rui2; Sun, Jing3 |
| 刊名 | SENSORS AND ACTUATORS B-CHEMICAL
 |
| 出版日期 | 2018 |
| 卷号 | 269页码:223 |
| 关键词 | Formaldehyde detection Tin oxide Graphene SnO2@graphene nanocomposite Chemical sensor |
| ISSN号 | 0925-4005 |
| DOI | 10.1016/j.snb.2018.04.176 |
| 英文摘要 | Performance modulation of formaldehyde (HCHO) sensing active nanomaterials is of great significance in environmental monitoring and disease diagnosis. This paper reports a simple but robust solvothermal process to synthesize SnO2@rGO nanocomposites for HCHO sensors with rGO mass fractions of 0-2%. The phases, chemical compositions, microstructures and surface states of the as-obtained SnO2@rGO nanocomposites are well characterized. The results indicate that the addition of GO overcomes the agglomeration of SnO2 nanocrystals (35 nm) and highly enhances the specific surface area (SSA) of the SnO2@rGO nanocomposites, leading to higher response and lower operating temperature in the HCHO-sensing application. The SSA of SnO2@rGO is 133.1 m(2)/g, much larger than that (58.3 m(2)/g) of pure SnO2 nanocrystals. The SnO2@rGO nanocomposites exhibit highly selective and sensitive to HCHO vapors at a relatively low operating temperature range of 100200 degrees C. The amount of GO added has a key effect on the HCHO-sensing performance, and the sample of SnO2@rGO-0.5% exhibits the highest response at 100 160 degrees C. Their recovery/response times are shorter than 20 s to HCHO vapors (less than 25 ppm). The enhanced HCHO-sensing performance is attributed to the formation of porous SnO2@rGO nanostructures with high SSAs and suitable electron transfer channels. (C) 2018 Elsevier B.V. All rights reserved. |
| 学科主题 | Chemistry, Analytical ; Electrochemistry ; Instruments & Instrumentation |
| WOS记录号 | WOS:000433211100029 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | This work was supported by the National Natural Science Foundation of China (Grant No. 51574205, Grant No. 51172211), the National Key Research and Development Program of China (2016YFA02030000), Program for Science & Technology Innovation Talents in Universities of Henan Province (14HASTIT011), Special Support Program for High-End Talents of Zhengzhou University (ZDGD13001), Program from Dongguan University of Technology (G200906-17), and Plan for Scientific Innovation Talent of Henan Province (154100510003). ; This work was supported by the National Natural Science Foundation of China (Grant No. 51574205, Grant No. 51172211), the National Key Research and Development Program of China (2016YFA02030000), Program for Science & Technology Innovation Talents in Universities of Henan Province (14HASTIT011), Special Support Program for High-End Talents of Zhengzhou University (ZDGD13001), Program from Dongguan University of Technology (G200906-17), and Plan for Scientific Innovation Talent of Henan Province (154100510003). |
| 源URL | [http://ir.sic.ac.cn/handle/331005/24673]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.Zhengzhou Univ, Sch Mat Sci & Engn, 100 Sci Rd, Zhengzhou 450001, Henan, Peoples R China 2.Dongguan Univ Technol, Sch Chem Engn & Energy Technol, Dongguan 523808, Peoples R China 3.Univ Ctr, Zhengzhou Inst Aeronaut Ind Management, Lab Aeronaut Composites, Zhengzhou 450046, Henan, Peoples R China 4.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, 1295 Dingxi Rd, Shanghai 200050, Peoples R China |
| 推荐引用方式 GB/T 7714 | Rong, Xiaoru,Chen, Deliang,Qu, Geping,et al. Effects of graphene on the microstructures of SnO2@rGO nanocomposites and their formaldehyde-sensing performance[J]. SENSORS AND ACTUATORS B-CHEMICAL,2018,269:223, 237. |
| APA | Rong, Xiaoru,Chen, Deliang,Qu, Geping,Li, Tao,Zhang, Rui,&Sun, Jing.(2018).Effects of graphene on the microstructures of SnO2@rGO nanocomposites and their formaldehyde-sensing performance.SENSORS AND ACTUATORS B-CHEMICAL,269,223. |
| MLA | Rong, Xiaoru,et al."Effects of graphene on the microstructures of SnO2@rGO nanocomposites and their formaldehyde-sensing performance".SENSORS AND ACTUATORS B-CHEMICAL 269(2018):223. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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