Preparation of CuO-SnO2 Gas Sensor and Its Sensitive Effect

doi:10.3696/j.issn.1006-396X.2011.02.005

Journal of Petrochemical Universities ›› 2011, Vol. 24 ›› Issue (2): 18-21.DOI: 10.3696/j.issn.1006-396X.2011.02.005

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Preparation of CuO-SnO₂ Gas Sensor and Its Sensitive Effect

Shenyang University of Chemical Technology，Shenyang Liaoning110142,P.R.China

Received:2011-02-02 Revised:2011-03-04 Published:2011-04-25 Online:2011-04-25

纳米CuO-SnO2 气敏粉体的制备及气敏特性研究

范文玉,李晓超,王黎^* ,姚慧,金飙

沈阳化工大学,辽宁沈阳110142

作者简介:范文玉(1973 -), 男, 安徽砀山县, 副教授
基金资助:
国家自然科学基金资助(20773014)。

Abstract

Abstract:

The CuO doped SnO₂ nanocrystalline powders were prepared by the Sol-Gel method, which were used to manufacture gas sensors with good gas-sensing characterization. Treatment at different temperature was investigated. The gas sensitive effect on gas had been measured to the powders which had different concentrations. The results show that the prepared nano-sized powders have large specific surface area, high surface activation and the rational annealing temperature is 650 ℃,SnO₂ gas sensors doped 4%(molar fraction) CuO have high sensitivity and high selectivity especially for greenhouse gas CO₂. 

Key words:

SnO₂, , Doping, , CuO, , Gas sensing properties, , Greenhouse gas CO₂

摘要： 用So l-Ge l 法制备了纳米级的CuO -SnO₂ 气敏粉体, 所得粉体制作的气敏元件有较好的气敏性能。在不同的加热电压下进行实验研究, 对不用浓度配比制成的气敏元件进行气敏性能测试。通过对所得粉体的表征可知, 用So l-Gel 法制备出的CuO-SnO₂ 气敏粉体是纳米级的, 比表面积大, 活性好, 其最佳热处理温度为650 ℃, 测试结果得出CuO 摩尔分数为4 %的CuO-SnO₂气敏元件有较好的灵敏度和较高的选择性, 并且对CO₂ 的灵敏度和选择性比较突出。

关键词: SnO₂ , 掺杂 , CuO , 气敏特性 , 温室气体CO₂

FAN Wen-yu,LI Xiao-chao, WANG Li,YAO Hui,JIN Biao. Preparation of CuO-SnO₂ Gas Sensor and Its Sensitive Effect[J]. Journal of Petrochemical Universities, 2011, 24(2): 18-21.

范文玉,李晓超,王黎,姚慧,金飙. 纳米CuO-SnO2 气敏粉体的制备及气敏特性研究[J]. 石油化工高等学校学报, 2011, 24(2): 18-21.

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Preparation of CuO-SnO₂ Gas Sensor and Its Sensitive Effect

纳米CuO-SnO2 气敏粉体的制备及气敏特性研究

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