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Yb-In2O3纳米管的制备及其对甲醛的优异气敏性能

王雪松 王国光 李海英 王连元 刘丽 郭雪馨 王晗 廉红伟

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Yb-In2O3纳米管的制备及其对甲醛的优异气敏性能

王雪松, 王国光, 李海英, 王连元, 刘丽, 郭雪馨, 王晗, 廉红伟

Fabrication and excellent formaldehyde Gas sensing properties of Yb-doped In2O3 nanotubes

Wang Xue-Song, Wang Guo-Guang, Li Hai-Ying, Wang Lian-Yuan, Liu Li, Guo Xue-Xin, Wang Han, Lian Hong-Wei
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  • 采用单管静电纺丝的方法成功制备了纯的与Yb掺杂的In2O3纳米管(Yb-In2O3). 利用扫描电子显微镜(SEM)和X射线衍射对样品的结构和形貌进行了表征, 制作了基于纯In2O3和Yb-In2O3纳米管的气敏元件. 研究表明, Yb-In2O3纳米管气敏元件在230下对100 ppm甲醛的灵敏度为69.8, 是纯In2O3纳米管气敏元件对同浓度甲醛灵敏度(18.4)的3.8倍, 其对100 ppm甲醛的响应恢复时间分别为4 s和84 s. 并且, 基于Yb-In2O3纳米管的气敏元件对100 ppb甲醛的灵敏度达到2.5. 此外, 该气敏元件还具有出色的选择性及稳定性, 具备良好的实际应用前景.
    Pure and Yb-doped In2O3 nanotubes have been successfully fabricated by using the single-capillary electrospinning method, followed by calcination. The morphological and structural characteristics of the as-synthesized nanotubes are investigated by scanning electron microscope (SEM) and X-ray powder diffraction (XRD). The SEM images reveal that all the pure and Yb-doped In2O3 nanotubes are distributed evenly, and the average diameter of the as-synthesized nanotubes is about 200 nm. The XRD analysis results show that the as-prepared samples are well-crystallized, and the diffraction peaks can be indexed according to cubic In2O3. Gas sensors based on pure and Yb-doped In2O3 nanotubes have been fabricated and investigated for formaldehyde detection in detail. As shown in the experimental results, Yb-doped In2O3 nanotubes exhibit enhanced formaldehyde sensing properties compared with pure In2O3 nanotubes. At the optimum operating temperature of 230 ℃, the response of the gas sensors based on pure In2O3 nanotubes to 100 ppm formaldehyde is 18.4, while the response of gas sensors based on Yb-doped In2O3 nanotubes is 69.8 in the same working condition, which is 3.8 times larger than that of pure In2O3 nanotubes. The improvement of Yb-doped In2O3 nanotubes gas-sensing property may be due to the formation of the heterojunction structure at the interface between the two different semiconducting oxides. The response and recovery times of Yb-doped In2O3 nanotubes to 100 ppm formaldehyde are about 4 s and 84 s respectively, indicating the fast response speed of Yb-doped In2O3 nanotubes. Moreover, even at 100 ppb of formaldehyde a detectable response can be observed and the value is 2.5. The low limit of formaldehyde detection shows that the as-synthesized Yb-doped In2O3 nanotube gas sensors can be used for the detection of dilute formaldehyde. Furthermore, the Yb-doped In2O3 nanotube gas sensors have excellent selectivity towards formaldehyde. In this experiment, acetone has the highest sensitivity in a variety of common interfering gases and the response value is 22 to 100 ppm at 230 ℃, which is less than one-third of the sensitivity of formaldehyde. Carbon monoxide has the lowest response value of 1.7, which is much lower than that of formaldehyde. In addition, the responses of gas sensors to different concentrations of formaldehyde almost unchanged during the test (50 days), indicating that the Yb-doped In2O3 nanotubes possess good repeatability and long-term stability. The excellent formaldehyde gas-sensing properties of Yb-doped In2O3 nanotubes indicate that the as-synthesized nanomaterials can be used as a promising candidate to detect formaldehyde in practical applications.
      通信作者: 刘丽, liul99@jlu.edu.cn
    • 基金项目: 吉林省科技厅重点科技攻关项目(批准号: 20140204027GX)资助的课题.
      Corresponding author: Liu Li, liul99@jlu.edu.cn
    • Funds: Project supported by the Jilin Provincial Science and Technology Department, China (Grant No. 20140204027GX).
    [1]

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    [2]

    Zhang L J, Hu H F, Wang Z Y, Wei Y, Jia J F 2010 Acta Phys. Sin. 59 527 (in Chinese) [张丽娟, 胡慧芳, 王志勇, 魏燕, 贾金凤 2010 物理学报 59 527]

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    Wang X, Li Y, Li X, Yu J, Al-Deyab S S, Ding B 2014 Sensor. Actuat. B: Chem. 203 333

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    Bo X Q, Liu C B, Li H Y, Liu L, Guo X, Liu Z, Liu L L, Su C 2014 Acta Phys. Sin. 63 176803 (in Chinese) [薄晓庆, 刘唱白, 李海英, 刘丽, 郭欣, 刘震, 刘丽丽, 苏畅 2014 物理学报 63 176803]

    [5]

    Li W, Ma S, Yang G, Mao Y, Luo J, Cheng L, Gengzang D, Xu X, Yan S 2015 Mater. Lett. 138 188

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    Xu X L, Chen Y, Ma S Y, Li W Q, Mao Y Z 2015 Sensor. Actuat. B: Chem. 213 222

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    Wu H Z, Zhang Y Y, Wang X, Zhu X M, Yuan Z J, Xu T N 2010 Acta Phys. Sin. 59 5022 (in Chinese) [吴惠桢, 张莹莹, 王雄, 朱夏明, 原子健, 徐天宁 2010 物理学报 59 5022]

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    Liang X, Kim T H, Yoon J W, Kwak C H, Lee J H 2015 Sensor. Actuat. B: Chem. 209 934

    [9]

    Kim H, An S, Jin C, Lee C 2012 Curr. Appl. Phys. 12 1125

    [10]

    Xing R, Xu L, Song J, Zhou C, Li Q, Liu D, Song H W 2015 Sci. Rep. UK 5 10717

    [11]

    Zhao C, Huang B, Xie E, Zhou J, Zhang Z 2015 Sensor. Actuat. B: Chem. 207 313

    [12]

    Gao J, Wang L, Kan K, Xu S, Jing L, Liu S, Shen P, Li L, Shi K 2014 J. Mater. Chem. A 2 949

    [13]

    Lai X, Shen G, Xue P, Yan B, Wang H, Li P, Xia W, Fang J 2015 Nanoscale 7 400

    [14]

    Chi X, Liu C, Liu L, Li S, Li H, Zhang X, Bo X, Shan H 2014 Mat. Sci. Semicon. Proc. 18 160

    [15]

    Cao Y, Li Y, Jia D, Xie J 2014 RSC Adv. 4 46179

    [16]

    Liu C, Chi X, Liu X, Wang S 2014 J. Alloy. Compd. 616 208

    [17]

    Miller D R, Akbar S A, Morris P A 2014 Sensor. Actuat. B: Chem. 204 250

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    Adachi G, Imanaka N 1998 Chem. Rev. 98 1479

    [19]

    Tang W, Wang J, Yao P, Li X 2014 Sensor. Actuat. B: Chem. 192 543

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    Deng J, Yu B, Lou Z, Wang L, Wang R, Zhang T 2013 Sensor. Actuat. B: Chem. 184 21

    [21]

    Badadhe S S, Mulla I S 2009 Sensor. Actuat. B: Chem. 143 164

  • [1]

    Liu H X, Li Z L, Li S T, Han J C, Wu C K 1988 Acta Phys. Sin. 37 470 (in Chinese) [刘厚祥, 李昭临, 李书涛, 韩景诚, 吴存恺 1988 物理学报 37 470]

    [2]

    Zhang L J, Hu H F, Wang Z Y, Wei Y, Jia J F 2010 Acta Phys. Sin. 59 527 (in Chinese) [张丽娟, 胡慧芳, 王志勇, 魏燕, 贾金凤 2010 物理学报 59 527]

    [3]

    Wang X, Li Y, Li X, Yu J, Al-Deyab S S, Ding B 2014 Sensor. Actuat. B: Chem. 203 333

    [4]

    Bo X Q, Liu C B, Li H Y, Liu L, Guo X, Liu Z, Liu L L, Su C 2014 Acta Phys. Sin. 63 176803 (in Chinese) [薄晓庆, 刘唱白, 李海英, 刘丽, 郭欣, 刘震, 刘丽丽, 苏畅 2014 物理学报 63 176803]

    [5]

    Li W, Ma S, Yang G, Mao Y, Luo J, Cheng L, Gengzang D, Xu X, Yan S 2015 Mater. Lett. 138 188

    [6]

    Xu X L, Chen Y, Ma S Y, Li W Q, Mao Y Z 2015 Sensor. Actuat. B: Chem. 213 222

    [7]

    Wu H Z, Zhang Y Y, Wang X, Zhu X M, Yuan Z J, Xu T N 2010 Acta Phys. Sin. 59 5022 (in Chinese) [吴惠桢, 张莹莹, 王雄, 朱夏明, 原子健, 徐天宁 2010 物理学报 59 5022]

    [8]

    Liang X, Kim T H, Yoon J W, Kwak C H, Lee J H 2015 Sensor. Actuat. B: Chem. 209 934

    [9]

    Kim H, An S, Jin C, Lee C 2012 Curr. Appl. Phys. 12 1125

    [10]

    Xing R, Xu L, Song J, Zhou C, Li Q, Liu D, Song H W 2015 Sci. Rep. UK 5 10717

    [11]

    Zhao C, Huang B, Xie E, Zhou J, Zhang Z 2015 Sensor. Actuat. B: Chem. 207 313

    [12]

    Gao J, Wang L, Kan K, Xu S, Jing L, Liu S, Shen P, Li L, Shi K 2014 J. Mater. Chem. A 2 949

    [13]

    Lai X, Shen G, Xue P, Yan B, Wang H, Li P, Xia W, Fang J 2015 Nanoscale 7 400

    [14]

    Chi X, Liu C, Liu L, Li S, Li H, Zhang X, Bo X, Shan H 2014 Mat. Sci. Semicon. Proc. 18 160

    [15]

    Cao Y, Li Y, Jia D, Xie J 2014 RSC Adv. 4 46179

    [16]

    Liu C, Chi X, Liu X, Wang S 2014 J. Alloy. Compd. 616 208

    [17]

    Miller D R, Akbar S A, Morris P A 2014 Sensor. Actuat. B: Chem. 204 250

    [18]

    Adachi G, Imanaka N 1998 Chem. Rev. 98 1479

    [19]

    Tang W, Wang J, Yao P, Li X 2014 Sensor. Actuat. B: Chem. 192 543

    [20]

    Deng J, Yu B, Lou Z, Wang L, Wang R, Zhang T 2013 Sensor. Actuat. B: Chem. 184 21

    [21]

    Badadhe S S, Mulla I S 2009 Sensor. Actuat. B: Chem. 143 164

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出版历程
  • 收稿日期:  2015-07-04
  • 修回日期:  2015-10-22
  • 刊出日期:  2016-02-05

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