Bilayer Au nanoparticle-decorated WO3 porous thin films: On-chip fabrication and enhanced NO2 gas sensing performances with high selectivity
文献类型：期刊论文
| 作者 | Zhang, Hongwen1 ; Wang, Yingying1; Zhu, Xiaoguang1; Li, Yue1; Cai, Weiping1,2
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| 刊名 | SENSORS AND ACTUATORS B-CHEMICAL
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| 出版日期 | 2019-02-01 |
| 卷号 | 280页码:192-200 |
| 关键词 | WO3 porous film Au NPs decoration On-chip fabrication NO2 detection Gas sensing |
| ISSN号 | 0925-4005 |
| DOI | 10.1016/j.snb.2018.10.065 |
| 通讯作者 | Zhang, Hongwen(hwzhang@issp.ac.cn) ; Cai, Weiping(wpcai@issp.ac.cn) |
| 英文摘要 | We present the on-chip fabrication of bilayer Au NP-decorated WO3 nanoporous thin films (B-Au/WO3) via layer-by-layer stacking of a sacrificial colloidal template with periodic Au sputtering deposition. Technical analysis shows that the B-Au/WO3 film is homogeneous and consists of a hexagonally ordered bowl-like structure, whose surface is uniformly decorated with crystalline Au NPs. The B-Au/WO3 sensing film shows a sensitivity of 96.0, a response time of 9.0 s and a recovery time of 16.0 s for 1 ppm NO2 at a low operating temperature of 150 degrees C. This significantly exceeds performances of bare WO3 counterpart. Also, the B-Au/WO3 sensor demonstrates obviously enhanced sensing responses over operating temperature ranges of 75-225 degrees C and perfect selectivity to NO2 gas. We proposed a combined sensing mechanism, the surface Au NPs dominated chemical sensitization and interbedded Au NP-induced electronic sensitization, to explain the perfect sensing performances in sensitivity, response, and selectivity. The template-mediated approach focuses on precise single-layer control and facilitates direct integration of the sensing film onto the required sensor substrate. The addressed on-chip fabrication strategy along with Au NPs decoration technique might provide promising applications in construction of advanced chemiresistive gas sensors, photocatalysts and electrochromic smart windows. |
| WOS关键词 | LOW OPERATING TEMPERATURE ; CORE-SHELL NANOPARTICLES ; METAL-OXIDES ; TUNGSTEN TRIOXIDE ; SENSORS ; FACILE ; NANOSTRUCTURES ; NANOCOMPOSITE ; MICROSPHERES ; CONDUCTANCE |
| 资助项目 | National Key Research and Development Program of China[2017YFA0207101] ; Natural Science Foundation of China[51771182] ; Natural Science Foundation of China[51531006] ; Natural Science Foundation of China[11574313] ; CAS/SAF International Partner-ship Program for Creative Research Teams |
| WOS研究方向 | Chemistry ; Electrochemistry ; Instruments & Instrumentation |
| 语种 | 英语 |
| WOS记录号 | WOS:000450302300025 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; CAS/SAF International Partner-ship Program for Creative Research Teams ; CAS/SAF International Partner-ship Program for Creative Research Teams ; CAS/SAF International Partner-ship Program for Creative Research Teams ; CAS/SAF International Partner-ship Program for Creative Research Teams ; CAS/SAF International Partner-ship Program for Creative Research Teams ; CAS/SAF International Partner-ship Program for Creative Research Teams ; CAS/SAF International Partner-ship Program for Creative Research Teams ; 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Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; CAS/SAF International Partner-ship Program for Creative Research Teams ; CAS/SAF International Partner-ship Program for Creative Research Teams ; CAS/SAF International Partner-ship Program for Creative Research Teams ; CAS/SAF International Partner-ship Program for Creative Research Teams ; CAS/SAF International Partner-ship Program for Creative Research Teams ; CAS/SAF International Partner-ship Program for Creative Research Teams ; CAS/SAF International Partner-ship Program for Creative Research Teams ; CAS/SAF International Partner-ship Program for Creative Research Teams ; CAS/SAF International Partner-ship Program for Creative Research Teams ; CAS/SAF International Partner-ship Program for Creative Research Teams ; CAS/SAF International Partner-ship Program for Creative Research Teams ; CAS/SAF International Partner-ship Program for Creative Research Teams ; CAS/SAF International Partner-ship Program for Creative Research Teams ; 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Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; CAS/SAF International Partner-ship Program for Creative Research Teams ; CAS/SAF International Partner-ship Program for Creative Research Teams ; CAS/SAF International Partner-ship Program for Creative Research Teams ; CAS/SAF International Partner-ship Program for Creative Research Teams ; CAS/SAF International Partner-ship Program for Creative Research Teams ; CAS/SAF International Partner-ship Program for Creative Research Teams ; CAS/SAF International Partner-ship Program for Creative Research Teams ; CAS/SAF International Partner-ship Program for Creative Research Teams ; CAS/SAF International Partner-ship Program for Creative Research Teams ; CAS/SAF International Partner-ship Program for Creative Research Teams ; 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| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/34479]  |
| 专题 | 合肥物质科学研究院_中科院固体物理研究所 |
| 通讯作者 | Zhang, Hongwen; Cai, Weiping |
| 作者单位 | 1.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Anhui Key Lab Nanomat & Nanotechnol, Hefei 230031, Anhui, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Hongwen,Wang, Yingying,Zhu, Xiaoguang,et al. Bilayer Au nanoparticle-decorated WO3 porous thin films: On-chip fabrication and enhanced NO2 gas sensing performances with high selectivity[J]. SENSORS AND ACTUATORS B-CHEMICAL,2019,280:192-200. |
| APA | Zhang, Hongwen,Wang, Yingying,Zhu, Xiaoguang,Li, Yue,&Cai, Weiping.(2019).Bilayer Au nanoparticle-decorated WO3 porous thin films: On-chip fabrication and enhanced NO2 gas sensing performances with high selectivity.SENSORS AND ACTUATORS B-CHEMICAL,280,192-200. |
| MLA | Zhang, Hongwen,et al."Bilayer Au nanoparticle-decorated WO3 porous thin films: On-chip fabrication and enhanced NO2 gas sensing performances with high selectivity".SENSORS AND ACTUATORS B-CHEMICAL 280(2019):192-200. |
入库方式： OAI收割
来源：合肥物质科学研究院
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