Research on gas-sensing properties of mesostructured TiO<sub>2</sub>-SnO<sub>2</sub> composite thin films

ZHANG Jin-rui1; XU Jun-na1; LING Yun-han2

doi:10.13873/j.1000-97872010.09.008

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Research on gas-sensing properties of mesostructured TiO₂-SnO₂ composite thin films

更新时间：2025-09-11

- Research on gas-sensing properties of mesostructured TiO₂-SnO₂ composite thin films
- Vol. 29, Issue 9, Pages: 8-11(2010)
- 作者机构：
  
  1. 河北理工大学资源与环境学院
  2. 清华大学材料系
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872010.09.008
  CLC： O484.4
- Published：2010
- 稿件说明：
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[1]张锦瑞,许军娜,凌云汉.TiO_2-SnO_2复合氧化物介孔薄膜的气敏特性研究[J].传感器与微系统,2010,29(09):8-11.

ZHANG Jin-rui1, XU Jun-na1, LING Yun-han2. Research on gas-sensing properties of mesostructured TiO₂-SnO₂ composite thin films[J]. 2010, 29(9): 8-11.
[1]张锦瑞,许军娜,凌云汉.TiO_2-SnO_2复合氧化物介孔薄膜的气敏特性研究[J].传感器与微系统,2010,29(09):8-11. DOI： 10.13873/j.1000-97872010.09.008.

ZHANG Jin-rui1, XU Jun-na1, LING Yun-han2. Research on gas-sensing properties of mesostructured TiO₂-SnO₂ composite thin films[J]. 2010, 29(9): 8-11. DOI： 10.13873/j.1000-97872010.09.008.

摘要

采用蒸发诱导自组装工艺制备了TiO2-SnO2介孔金属氧化物薄膜。采用静态配气法

研究了不同掺杂量SnO2对TiO2元件气敏性的影响

并通过测定电化学阻抗谱

分析了介孔金属氧化物的气敏机理。结果表明:随着SnO2掺杂量的增加

TiO2元件对乙醇气体灵敏度也随之提高

而初始响应温度则随之降低。在250℃时

20%-TiO2和SnO2元件对体积分数为500×10-6乙醇的灵敏度分别为13.24和14.26。阻抗分析表明:复合氧化物对还原性气体敏感过程具有明显容抗特征。

Abstract

Mesostructured TiO2-SnO2 thin films are successfully prepared on slide glass by evaporation-induced self-assembly process.The gas sensing properties of TiO2-SnO2 thin films fabricated on alumina ceramic tube are measured by a stationary state gas distribution method.The results indicate that with the increase of tin-doped the sensitivities of the TiO2 sensors toward alcohol increase

while the initial response temperatures decrease.At the temperature of 250 ℃

the sensitivities of 20 %-TiO2 and SnO2 sensors toward alcohol（500×10-6） are 13.24 and 14.26

respectively.From analysis of the impedance changes

the metal oxide exhibits obvious capacitance characteristic when it is exposed to reducing gas.

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references

纳米SnO 2 -TiO 2 复合材料的氢敏性能及气敏机理 [J]. 刘天模,曾文. 功能材料 . 2009(07)

TiO 2 薄膜制备及其气敏特性 [J]. 许明,孙以材,潘国峰,张翼飞,何建建. 传感器世界 . 2009(02)

Semiconductor TiO 2 –Ga 2 O 3 thin film gas sensors derived from particulate sol–gel route [J] . M.R. Mohammadi,D.J. Fray. Acta Materialia . 2007 (13)

Structural and CO sensing characteristics of Ti-added SnO 2 thin films [J] . J.S Chen,H.L Li,J.L Huang. Applied Surface Science . 2002 (3)

Reactions of ethanol over metal oxides [J] . H. Idriss,E.G. Seebauer. Journal of Molecular Catalysis. A, Chemical . 2000 (1)

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Research on gas-sensing properties of mesostructured TiO2-SnO2 composite thin films

DOI：10.13873/j.1000-97872010.09.008

摘要

Abstract

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Keywords

references

Research on gas-sensing properties of mesostructured TiO₂-SnO₂ composite thin films