Gas-Sensing Characteristics of SnO<sub>2</sub> Nanoparticles to CH<sub>4</sub>

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Gas-Sensing Characteristics of SnO₂ Nanoparticles to CH₄

更新时间：2025-05-08

- Gas-Sensing Characteristics of SnO₂ Nanoparticles to CH₄
- Vol. 43, Issue 6, Pages: 118-122(2009)
- 作者机构：
  
  1. 西安交通大学电子与信息工程学院,西安,710049
  2. 西安工业大学材料与化工学院,西安,710032
- 作者简介：
- 基金信息：
- DOI：
  CLC： TH704
- Online First：10 June 2009，
  
  Published：2009
- 稿件说明：
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Gas-Sensing Characteristics of SnO₂ Nanoparticles to CH₄[J]. 2009, 43(6): 118-122.
DOI：

Gas-Sensing Characteristics of SnO₂ Nanoparticles to CH₄[J]. 2009, 43(6): 118-122. DOI：

摘要

使用溶胶-凝胶法制备了SnO

纳米颗粒.通过X射线衍射和扫描电子显微镜手段对材料的晶体结构和表面进行分析

结果表明所得材料为纯SnO

纳米颗粒.以所制备的SnO

纳米颗粒为气敏材料制备电阻式气敏元件

在CH

体积分数为2.5×10

-4

时

测试SnO

纳米颗粒对CH

气体的气敏特性

包括工作温度-气体灵敏度和响应-恢复特性

结果表明SnO

颗粒在工作温度为350 ℃时对CH

的最大灵敏度为11

响应-恢复时间分别为5 s和8 s.实验结果表明

该SnO

纳米颗粒气敏传感器对CH

具有快速响应和高灵敏度的特性

在工矿安全运行和环境保护方面具有重要的应用价值.

Abstract

SnO

nanoparticles were synthesized by the sol-gel method

then the crystal structures and morphology of the nanoparticles were characterized by scanning electron microscopy and X-ray diffraction. The results show that these particles are pure SnO

in the nanoscale range. Then these SnO

nano-particles are used as source materials to make resistance type gas sensors. The gas sensitivity(referring to working temperature-sensitivity and response-recovery time)of the SnO

nano-particles to CH

at the volume fraction of 2.5×10

-4

is tested at different working temperature. The results show that the highest sensitivity of SnO

nano-particles at working temperature of 350 ℃ to CH

is 11

and the response-recovery time is 5 s and 8 s

respectively. The experiment results show that the rapid response and high sensitivity of the gas sensor made from the SnO

nano-particles has important utility value in the industrial safe operation and environmental protection.

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Keywords

references

TATSUYA T, YUNI A, RYUJI K,et al. Preparation and gas sensing properties of perovskite-type SrFeO3 oxide [J]. Mater Lett, 2001, 49(6):361-364.

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Gas-Sensing Characteristics of SnO2 Nanoparticles to CH4

DOI：

摘要

Abstract

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Keywords

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Gas-Sensing Characteristics of SnO₂ Nanoparticles to CH₄