Temperature modulated p-n transition NO2 sensor in metal-organic framework-derived CuOx
文献类型：期刊论文
| 作者 | Ding, Yanqiao2; Guo, Xuezheng2; Liang, Chengyao2; Wu, Zhilin2; Meng, Gang1 ; Zang, Zhigang2; He, Yong2
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| 刊名 | SENSORS AND ACTUATORS B-CHEMICAL
 |
| 出版日期 | 2022-05-15 |
| 卷号 | 359 |
| 关键词 | Metal-organic frameworks Tunable sensing behavior Selectivity Nitrogen dioxide sensor |
| DOI | 10.1016/j.snb.2022.131605 |
| 通讯作者 | Zang, Zhigang(yonghe@cqu.edu.cn) ; He, Yong(zangzg@cqu.edu.cn) |
| 英文摘要 | The wide reactivity of metal oxide semiconductor sensors to different gases leads to poor selectivity of the devices, which seriously hinders their practical application. Herein, a qualitative method for analyzing selectivity is proposed by modulating the working temperature to realize p-n response conversion. This method is independent of the response values and can identify the nitrogen dioxide (NO2) gas in the mixture of ammonia (NH3) and NO2 gases. In this work, the CuOx octahedrons sensing layer derived from the metal-organic frameworks (MOFs) is synthesized via self-assembly and calcination route. The gas sensing performance of CuOx sensor to ppb-level NO2 at different temperatures is systematically investigated. Interestingly, the CuOx sensor manifests the intrinsic p-type behavior in the temperature range from room temperature (RT, i.e. 25 ?) to 180 ? and n-type behavior above 200 ?. This tunable sensing behavior with switching from p-type to n-type ensures that the CuOx sensor accurately identifies a specific gas without considering the relative intensity of responses between target gas and interference gases. Moreover, the CuOx sensor exhibits high response of 76.69% at 25 ? and superior repeatability. The mechanism of p-n sensing behavior transition for NO2 is proposed based on content of adsorbed oxygen and surface reactions at different temperatures. This work provides a novel approach for tailoring the selectivity of ppb-level NO2 gas sensors and exhibits potential applications for the environment monitoring. |
| WOS关键词 | LOW-TEMPERATURE ; GAS ; NANOSTRUCTURES ; HETEROJUNCTION ; NANOPARTICLES ; PROGRESS ; GROWTH ; FILMS |
| 资助项目 | Natural Science Foundation of China[11974063] ; Natural Science Foundation of China[61701053] ; Chongqing Natural Science Foundation[cstc2020jcyj-jqX0028] ; Opening Foundation of Key Lab of Photovoltaic and Energy Conservation Materials, CAS[PECL2019KF015] ; Chongqing Research Program of Basic Research and Frontier Technology[cstc2018jcyjAX0431] ; Fundamental Research Funds for the Central Universities[2019CDCGGD322] ; Fundamental Research Funds for the Central Universities[2019CDQYGD004] ; Chongqing Entrepreneurship and Innovation Supporting Program for Returned Overseas Students[cx2018059] |
| WOS研究方向 | Chemistry ; Electrochemistry ; Instruments & Instrumentation |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE SA |
| WOS记录号 | WOS:000782123300003 |
| 资助机构 | Natural Science Foundation of China ; Chongqing Natural Science Foundation ; Opening Foundation of Key Lab of Photovoltaic and Energy Conservation Materials, CAS ; Chongqing Research Program of Basic Research and Frontier Technology ; Fundamental Research Funds for the Central Universities ; Chongqing Entrepreneurship and Innovation Supporting Program for Returned Overseas Students |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/128507]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Zang, Zhigang; He, Yong |
| 作者单位 | 1.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Photovolta & Energy Conservat Mat, Hefei 230031, Peoples R China 2.Chongqing Univ, Key Lab Optoelect Technol & Syst, Minist Educ, Chongqing 400044, Peoples R China |
| 推荐引用方式 GB/T 7714 |
Ding, Yanqiao,Guo, Xuezheng,Liang, Chengyao,et al. Temperature modulated p-n transition NO2 sensor in metal-organic framework-derived CuOx [J]. SENSORS AND ACTUATORS B-CHEMICAL,2022,359. |
| APA |
Ding, Yanqiao.,Guo, Xuezheng.,Liang, Chengyao.,Wu, Zhilin.,Meng, Gang.,...&He, Yong.(2022). Temperature modulated p-n transition NO2 sensor in metal-organic framework-derived CuOx .SENSORS AND ACTUATORS B-CHEMICAL,359. |
| MLA |
Ding, Yanqiao,et al." Temperature modulated p-n transition NO2 sensor in metal-organic framework-derived CuOx ".SENSORS AND ACTUATORS B-CHEMICAL 359(2022). |
入库方式： OAI收割
来源：合肥物质科学研究院
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