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无机材料学报

无机材料学报

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纳米ZnFe2O4气敏材料的结构和敏感特性研究

焦正1; 陈锋1; 李民强2; 刘锦淮2; 边历峰2; 钱逸泰1   

  1. 1. 中国科技大学, 合肥 230026; 中国科学院合肥智能机械研究所; 合肥 230031
  • 收稿日期:2001-03-19 修回日期:2001-06-04 出版日期:2002-03-20 网络出版日期:2002-03-20

Preparation and Sensitive Characteristcs of Nano ZnFe2O4 Gas Sensitive Materials

JIAO Zheng1; CHEN Feng1; LI Min-Qiang2; LIU Jin-Huai2; BIAN Li-Feng2. QIAN Yi-Tai1   

  1. 1.; University of Chemistry; University of Science and Technology of China; Hefei 230026; China; 2. Institute of Intelligent Machines; Chinese Academy of Sciences; Hefei 230031, China
  • Received:2001-03-19 Revised:2001-06-04 Published:2002-03-20 Online:2002-03-20

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摘要： ＺｎＦｅ２Ｏ４是传统的铁氧体材料，近年来又发现具有良好的气敏性能．本文采用化学共沉淀法制备了纳米尺寸的ＺｎＦｅ２Ｏ４粉末，利用ＸＲＤ、ＸＰＳ、ＳＥＭ等手段研究了结构特性．以ＺｎＦｅ２Ｏ４纳米粉末为原料制备了厚膜气敏元件，测试了元件的气敏性能，并对气敏机理给予了解释．

关键词: 纳米材料, 气敏, 化学共沉淀

Abstract: ZnFe2O4 is a traditional ferrite material. In recent years, it has been found that ZnFe2O4 is also a good gas sensitive material. In this paper, nano ZnFe2O4 powder was prepared by coprecipitation. XRD, XPS and SEM were used in analyzing structure characteristcs. Based on ZnFc2O4 nano powder thick film gas sensors were prepared, and their gas sensitive characteristics were tested and gas sensitive mechanism was given.

Key words: nano materials, gas sensitivity, coprecipitation

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