| Sn掺杂MoO_3的制备、表征及气敏性能 |
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| 引用本文： | 高海燕,王竞一,赵永男,陈昆峰,薛冬峰.Sn掺杂MoO_3的制备、表征及气敏性能[J].高等学校化学学报,2017,38(12). |
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| 作者姓名： | 高海燕 王竞一 赵永男 陈昆峰 薛冬峰 |
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| 作者单位： | 1. 天津工业大学材料科学与工程学院, 天津市先进纤维与储能技术重点实验室, 天津 300387;南开大学先进能源材料化学教育部重点实验室, 天津 300071;2. 天津工业大学材料科学与工程学院, 天津市先进纤维与储能技术重点实验室, 天津 300387;3. 中国科学院长春应用化学研究所, 稀土资源利用国家重点实验室, 长春 130022 |
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| 基金项目： | 天津工业大学创新创业训练计划项目、 先进能源材料化学教育部重点实验室开放基金，稀土国家重点实验室开放课题(批准号: RERU2016018)资助. Supported by the Innovation and Entrepreneurship Training Program of Tianjin Polytechnic University of China |
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| 摘 要： | 以仲钼酸铵和四氯化锡为原料,采用水热法制备了不同Sn掺杂比例的MoO_3;利用X射线衍射(XRD),扫描电子显微镜(SEM)和Brunauer-Emmett Teller(BET)测试等手段对材料进行了物相、形貌结构和孔径表征;测试了其对乙醇、二氯甲烷、甲醇、甲醛、甲酸、四氯化碳、氨气和丙酮等气体的传感性能.结果表明,Sn掺杂未改变MoO_3的结构;290℃为气体传感测试的最佳测试温度;掺杂后的MoO_3对乙醇气体的灵敏度和响应时间均优于纯相MoO_3,Sn掺杂摩尔比为5%时效果最好,500 mg/m~3测试条件下对乙醇的灵敏度为19.64,响应时间为1.1 s.
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| 关 键 词： | 三氧化钼 锡掺杂 气敏特性 |
Preparation,Characterization and Gas Sensing Properties of Sn Doped MoO3 |
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| GAO Haiyan,WANG Jingyi,ZHAO Yongnan,CHEN Kunfeng,XUE Dongfeng.Preparation,Characterization and Gas Sensing Properties of Sn Doped MoO3[J].Chemical Research In Chinese Universities,2017,38(12). |
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| Authors: | GAO Haiyan WANG Jingyi ZHAO Yongnan CHEN Kunfeng XUE Dongfeng |
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| Abstract: | Sn-doped MoO3 were synthesized by a hydrothermal method, using ammonium paramolybdate and tin tetrachloride as raw materials. The structure, morphology and pore texture of the samples were characterized by means of X-ray diffraction ( XRD), scanning electron microscope ( SEM) and Brunauer-Emmett-Teller (BET). The gas sensing properties of ethanol, dichloromethane, methanol, formaldehyde, formic acid, car-bon tetrachloride, ammonia and acetone were tested. The results show that Sn doping does not affect the struc-ture of MoO3 and the best heating temperature is 290 ℃. After Sn doping, the sensitivity is better than the pure MoO3 , and the response time is shorter. MoO3 doped with 5%(molar ratio) Sn shows the best gas sensing properties, with a gas sensitivity of 19. 64 and a rapid response time of 1. 1 s in 500 mg / m3 of ethanol. |
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| Keywords: | MoO3 Sn doping Gas sensing property |
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