| Acetic acid gas sensors based on Ni2 doped ZnO nano-rods prepared by solvothermal method |
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| 作者姓名： | 程志明 周素梅 陈同云 董永平 张王兵 储向峰 |
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| 作者单位： | Department of Chemistry, School of Science, Beijing Jiaotong University, Beijing 100044, China;School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan 243002, China;School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan 243002, China;School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan 243002, China;School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan 243002, China;School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan 243002, China |
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| 基金项目： | supported by the National Natural Science Foundation of China（No.61271156）; the Innovation Team Project of AHUT（No. TD201204）; the Research Project for University Personnel Returning from Overseas Sponsored by the Ministry of Education of China |
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| 摘 要： | Ni2+-doped ZnO nanorods with different doping concentrations are prepared via the solvothermal method. The doped ZnO nanorods are characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. The amount of Ni2+ ions that enter the lattice of ZnO increases with increasing the Ni2+/Zn2+ molar ratio when the molar ratio of Ni2+/Zn2+ in the starting solution is lower than 3% and does not change obviously if the mole ratio of Ni2+/Zn2+ in the starting solution is in the range of 3-10 mol%. The effect of Ni2+ doping on the gas-sensing properties is investigated. The results reveal that the amount of Ni2+ has a great influence on the response (Ra/Rg) and the gas-sensing selectivity. The sensor based on 1 mol % Ni2+ doped ZnO nanorods (120 ℃, 10 h) exhibits a high response to acetic acid vapor, in particular, the responses to 0.001 ppm and 0.01 ppm acetic acid vapor reach 1.6 and 2, respectively. The response time and the recovery time for 0.001 ppm acetic acid are only 4 s and 27 s, respectively.
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| 关 键 词： | 掺杂浓度 气体传感器 溶剂热法 ZnO 纳米棒 Ni 醋酸 扫描电子显微镜 |
| 收稿时间： | 4/9/2012 7:23:33 PM |
| 修稿时间： | 6/6/2012 12:00:00 AM |
Acetic acid gas sensors based on Ni2+ doped ZnO nanorods prepared by using the solvothermal method |
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| Cheng Zhiming,Zhou Sumei,Chen Tongyun,Dong Yongping,Zhang Wangbing and Chu Xiangfeng.Acetic acid gas sensors based on Ni2 doped ZnO nano-rods prepared by solvothermal method[J].Chinese Journal of Semiconductors,2012,33(11):112003-6. |
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| Authors: | Cheng Zhiming Zhou Sumei Chen Tongyun Dong Yongping Zhang Wangbing and Chu Xiangfeng |
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| Affiliation: | Department of Chemistry, School of Science, Beijing Jiaotong University, Beijing 100044, China;School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan 243002, China;School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan 243002, China;School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan 243002, China;School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan 243002, China;School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan 243002, China |
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| Abstract: | |
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| Keywords: | ZnO nanorods gas sensor acetic acid |
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