Au-Decorated ZnFe2O4 Yolk-Shell Spheres for Trace Sensing of Chlorobenzene
文献类型：期刊论文
| 作者 | Li, Ke2,4; Luo, Yuanyuan4 ; Gao, Lei4; Li, Tie1; Duan, Guotao3
|
| 刊名 | ACS APPLIED MATERIALS & INTERFACES
 |
| 出版日期 | 2020-04-08 |
| 卷号 | 12 |
| ISSN号 | 1944-8244 |
| 关键词 | noble metal decoration yolk-shell sphere gas sensing chlorobenzene spillover effect |
| DOI | 10.1021/acsami.0c00525 |
| 通讯作者 | Duan, Guotao(duangt@hust.edu.cn) |
| 英文摘要 | Noble metals supported on metal oxides are promising materials for widely applying on gas sensors because of their enviable physical and chemical properties in enhancing the sensitivity and selectivity. Herein, pristine ZFO yolk-shell spheres composed of ultrathin nanosheets and ultrasmall nanoparticles decorated with nanosized Au particles with a diameter of 1-2 nm are fabricated using the method of solution-phase deposition-precipitation. As a result, the Au@ZFO yolk-shell sphere based sensor exhibits significantly sensing performances for chlorobenzene (CB). In comparison with pristine ZFO, the response (R-air/R-gas = 90.9) of a Au@ZFO based sensor with a low detection limit of 100 ppb increases 4-fold when exposed to 10 ppm chlorobezene at 150 degrees C. Excitingly, the sensing response for chlorobenzene is the highest among metal oxides semiconductor based sensors. Moreover, the sensors can be further applied in the field of chlorobenzene monitoring, owing to its outstanding selectivity. The results elaborated that the enhanced sensing mechanism is mainly attributed to the effects of electronic sensitization and chemical sensitization, which are induced by the Au nanoparticles on the surface of ZFO yolk-shell spheres. Density functional theory (DFT) calculations further illustrated that the existence of Au nanoparticles exhibits higher adsorption energy and net charge transfer for CB. In addition, the relationship between the sensing performances of pristine ZFO and Au@ZFO yolk-shell spheres for chlorobenzene and the factors of Au loading amount, operating temperature, and humidity was also fully investigated in this work. |
| WOS关键词 | HOLLOW SPHERES ; GAS ; PERFORMANCE ; NANOPARTICLES ; NANORODS ; SENSORS ; NANOSPHERES ; SENSITIVITY ; TOLUENE ; DESIGN |
| 资助项目 | National Key R&D Program of China[2018YFA0208500] ; National Key R&D Program of China[2017YFA0207103] ; National Natural Science Foundation of China[11674320] ; Youth Innovation Promotion Association CAS ; Key Research Projects of the Frontier Science CAS[QYZDB-SSW-JSC017] ; Natural Science Foundation for Young Scientists of China[51802309] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| 出版者 | AMER CHEMICAL SOC |
| WOS记录号 | WOS:000526583500086 |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Key Research Projects of the Frontier Science CAS ; Natural Science Foundation for Young Scientists of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/103339]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Duan, Guotao |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, Sci & Technol Microsyst Lab, Shanghai 200050, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Sch Opt & Elect Informat, Wuhan 430074, Peoples R China 4.Chinese Acad Sci, Inst Solid State Phys, Anhui Key Lab Nanomat & Nanotechnol, Key Lab Mat Phys, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Ke,Luo, Yuanyuan,Gao, Lei,et al. Au-Decorated ZnFe2O4 Yolk-Shell Spheres for Trace Sensing of Chlorobenzene[J]. ACS APPLIED MATERIALS & INTERFACES,2020,12. |
| APA | Li, Ke,Luo, Yuanyuan,Gao, Lei,Li, Tie,&Duan, Guotao.(2020).Au-Decorated ZnFe2O4 Yolk-Shell Spheres for Trace Sensing of Chlorobenzene.ACS APPLIED MATERIALS & INTERFACES,12. |
| MLA | Li, Ke,et al."Au-Decorated ZnFe2O4 Yolk-Shell Spheres for Trace Sensing of Chlorobenzene".ACS APPLIED MATERIALS & INTERFACES 12(2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
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。