Highly sensitive and selective ethanol and acetone gas sensors based on modified ZnO nanomaterials
文献类型：期刊论文
| 作者 | Wang, Jinxiao1,2; Yang, Jun1; Han, Ning2,3; Zhou, Xinyuan2; Gong, Shuyan2; Yang, Jianfeng4; Hu, Peng2; Chen, Yunfa2,3
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| 刊名 | MATERIALS & DESIGN
 |
| 出版日期 | 2017-05-05 |
| 卷号 | 121页码:69-76 |
| 关键词 | Mn doped ZnO CdO modification Operating temperature Sensitivity Selectivity |
| ISSN号 | 0264-1275 |
| 英文摘要 | Nowadays, highly sensitive metal oxide semiconductor gas sensors are exerting a growing important influence on the detection of target gases. It is still challenging to get both high sensitivity and selectivity to effectively distinguish gas mixtures. In this study, Mn doped ZnO (MZO) is prepared by a facile co-precipitation method and then further modified by CdO addition. The results show that 2.2 mol% MZO has high responses to both acetone and ethanol, while 10 mol% CdO activated 1 mol% MZO exhibits excellent sensitivity to ethanol and neglectable response to acetone. This is explained by the enhanced alkalinity of ZnO by the CdO addition expelling acetone from adsorption onto the sensor surface, which is verified by temperature-programmed CO2 desorption. Moreover, the CdO-MZO gas sensor has an optimized working temperature of 240 degrees C, far lower than 340 degrees C of MZO, due to the higher oxidativity as proved by the temperature-programmed H-2 reduction. The MZO and CdO-MZO gas sensors are then used as a sensor array to distinguish the ethanol and acetone concentrations in mixtures with varied ratios, showing the promise of the gas sensor property tailoring approach for future high performance gas sensors. (C) 2017 Published by Elsevier Ltd. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Materials Science, Multidisciplinary |
| 研究领域[WOS] | Materials Science |
| 关键词[WOS] | DOPED ZNO ; SENSING PROPERTIES ; ROOM-TEMPERATURE ; NANOPARTICLES ; NANOSTRUCTURES ; NANOCOMPOSITES ; FILM ; PHOTOCATALYST ; NANOCRYSTALS ; MICROSPHERES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000399625000008 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/22484]  |
| 专题 | 过程工程研究所_多相复杂系统国家重点实验室 |
| 作者单位 | 1.Xian Univ Architecture & Technol, Sch Met Engn, Xian 710055, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China 4.Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Jinxiao,Yang, Jun,Han, Ning,et al. Highly sensitive and selective ethanol and acetone gas sensors based on modified ZnO nanomaterials[J]. MATERIALS & DESIGN,2017,121:69-76. |
| APA | Wang, Jinxiao.,Yang, Jun.,Han, Ning.,Zhou, Xinyuan.,Gong, Shuyan.,...&Chen, Yunfa.(2017).Highly sensitive and selective ethanol and acetone gas sensors based on modified ZnO nanomaterials.MATERIALS & DESIGN,121,69-76. |
| MLA | Wang, Jinxiao,et al."Highly sensitive and selective ethanol and acetone gas sensors based on modified ZnO nanomaterials".MATERIALS & DESIGN 121(2017):69-76. |
入库方式： OAI收割
来源：过程工程研究所
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