Study on gas sensitivity of ZnO-WO<sub>3</sub> nano-composites

LI Deng-feng; ZHANG Qin-yi; WANG Ai-hua; GUI Yang-hai; XIE Chang-sheng

doi:10.13873/j.1000-97872006.03.008

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Study on gas sensitivity of ZnO-WO₃ nano-composites

更新时间：2025-09-11

- Study on gas sensitivity of ZnO-WO₃ nano-composites
- Issue 3, Pages: 22-24(2006)
- 作者机构：
  
  1. 华中科技大学材料科学与工程学院
  2. 华中科技大学材料科学与工程学院,湖北,武汉,430074
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872006.03.008
  CLC： TN304
- Published：2006
- 稿件说明：
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[1]李登峰,张覃轶,王爱华,桂阳海,谢长生.ZnO-WO_3纳米复合氧化物的气敏性能研究[J].传感器与微系统,2006(03):22-24.

LI Deng-feng, ZHANG Qin-yi, WANG Ai-hua, et al. Study on gas sensitivity of ZnO-WO₃ nano-composites[J]. 2006, (3): 22-24.
[1]李登峰,张覃轶,王爱华,桂阳海,谢长生.ZnO-WO_3纳米复合氧化物的气敏性能研究[J].传感器与微系统,2006(03):22-24. DOI： 10.13873/j.1000-97872006.03.008.

LI Deng-feng, ZHANG Qin-yi, WANG Ai-hua, et al. Study on gas sensitivity of ZnO-WO₃ nano-composites[J]. 2006, (3): 22-24. DOI： 10.13873/j.1000-97872006.03.008.

摘要

以纳米ZnO为原料掺入4种质量分数的纳米WO3

经不同温度烧结制作了ZnO-WO3纳米复合氧化物气敏元件

讨论了掺杂质量分数和烧结温度对材料的相组分和气敏性能的影响。研究表明:Zn-W-O敏感体系中

WO3等辅相对材料气敏性能的影响十分明显

与纯纳米ZnO比较

450℃烧结、掺入质量分数为30%的WO3的敏感材料对200×10-6体积分数的乙醇和苯的灵敏度分别达到150和16。由于WO3与ZnO的酸碱中心相互催化作用

致使ZnO-WO3复合氧化物有着优异的敏感性能。

Abstract

Gas-sensing components based on ZnO-WO

nano-composites are fabricated by doping with four kinds of quality fraction nano-WO

into nano-ZnO at various sintering temperature.The effects of doping quality fraction and sintering temperature on phase ingredient and gas sensitivity are studied.It is found that the effect of subordinate phases such as WO

on gas sensitivity in the Zn-W-O sensing material is dominant;and comparing to pure nano-ZnO

the sensitivity of the Zn-W-O sensing material doping quality fraction with 30 % weight percentage of WO

sintered at 450 ℃

is up to 150 and 16 separately to 200×10

-6

volume fraction of ethanol and benzene.Sensitivities are remarkably enhanced by the interactive catalysis of the acid core and alkali core between WO

and ZnO.

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references

金属氧化物及其催化作用[M]. 中国科学技术大学出版社 , (日)清山哲郎著, 1991

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Related Institution

State Key Laboratory of Materials Processing and Die & Mould Technology,Department of Materials,Huazhong University of Science and Engineering

College of Chemistry and Environmental Science,Henan Normal University

河南师范大学化学与环境科学学院

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Study on gas sensitivity of ZnO-WO3 nano-composites

DOI：10.13873/j.1000-97872006.03.008

摘要

Abstract

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Study on gas sensitivity of ZnO-WO₃ nano-composites