Chemical vapor deposition preparation of nanostructured ZnO particles and their gas-sensing properties
文献类型：期刊论文
| 作者 | Zhang, Dangwen1,2; Wu, Xiaofeng1; Han, Ning3; Chen, Yunfa1
|
| 刊名 | JOURNAL OF NANOPARTICLE RESEARCH
 |
| 出版日期 | 2013-04-01 |
| 卷号 | 15期号:4页码:1580 |
| 关键词 | Zinc oxide Chemical vapor deposition (CVD) Hierarchical-structure Sensors |
| 英文摘要 | Nanostructured ZnO materials including Zn@ ZnO core-shell structure (CS), ZnO hollow sphere (HS), and hierarchically structured ZnO hollow microsphere with nanorods (HSNR) grown on the outer surface were prepared by a simple and versatile chemical vapor deposition process. Scanning electron microscopy, X-ray diffraction, transmission electron microscopy, high-resolution transmission electron microscopy, Raman spectroscopy, and room temperature photoluminescence spectroscopy were used to characterize the morphology and crystalline structure of the samples. It was found that the gas-sensing property of the three structured ZnO had different responses in resistive mode using formaldehyde gas as the probe. In contrast with CS and HS samples, the HSNR exhibits better sensing property because it has more oxygen vacancies and more surface sites, which produce a higher resistance. However, the higher work function of Zn core than that of the ZnO sheath forms the ohmic contact, producing negative charge accumulating layers within ZnO side of Zn-ZnO junction, thus contributing a lower sensing response of CS model when exposed to the targeted formaldehyde gas. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| 研究领域[WOS] | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| 关键词[WOS] | OPTICAL-PROPERTIES ; WORK FUNCTION ; ZINC-OXIDE ; HIERARCHICAL STRUCTURES ; RAMAN-SCATTERING ; SINGLE-CRYSTAL ; DOPED ZNO ; PHOTOLUMINESCENCE ; GROWTH ; NANOWIRES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000318554400078 |
| 公开日期 | 2015-05-27 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/13411]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.City Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Hong Kong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Dangwen,Wu, Xiaofeng,Han, Ning,et al. Chemical vapor deposition preparation of nanostructured ZnO particles and their gas-sensing properties[J]. JOURNAL OF NANOPARTICLE RESEARCH,2013,15(4):1580. |
| APA | Zhang, Dangwen,Wu, Xiaofeng,Han, Ning,&Chen, Yunfa.(2013).Chemical vapor deposition preparation of nanostructured ZnO particles and their gas-sensing properties.JOURNAL OF NANOPARTICLE RESEARCH,15(4),1580. |
| MLA | Zhang, Dangwen,et al."Chemical vapor deposition preparation of nanostructured ZnO particles and their gas-sensing properties".JOURNAL OF NANOPARTICLE RESEARCH 15.4(2013):1580. |
入库方式： OAI收割
来源：过程工程研究所
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