物理化学学报 >> 2008, Vol. 24 >> Issue (07): 1292-1296.doi: 10.3866/PKU.WHXB20080729

研究简报 上一篇    下一篇

ZnO-CuO纳米复合氧化物的制备及其气敏性能

范会涛; 曾毅; 杨海滨; 郑学军; 刘丽; 张彤   

  1. 吉林大学电子科学与工程学院, 集成光电子学国家重点联合实验室, 长春 130012; 吉林大学超硬材料国家重点实验室, 长春 130012; 湘潭大学, 低维材料及其应用教育部重点实验室, 湖南 湘潭 411105
  • 收稿日期:2007-12-04 修回日期:2008-04-01 发布日期:2008-07-04
  • 通讯作者: 张彤 E-mail:zhangtong@jlu.edu.cn

Preparation and Gas Sensitive Properties of ZnO-CuO Nanocomposites

FAN Hui-Tao; ZENG Yi; YANG Hai-Bin; ZHENG Xue-Jun; LIU Li; ZHANG Tong   

  1. State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, P. R. China; National Laboratory of Superhard Materials, Jilin University, Changchun 130012, P. R. China; Key Laboratory of Low Dimensional Materials&Application Technology of the Ministry of Education, Xiangtan University, Xiangtan 411105, Hunan Province, P. R .China
  • Received:2007-12-04 Revised:2008-04-01 Published:2008-07-04
  • Contact: ZHANG Tong E-mail:zhangtong@jlu.edu.cn

摘要: 采用线电爆炸(WEE)方法是在高温、高压的环境中将Zn-Cu合金(w(Zn)=0.65))制备成平均粒径为60-90 nm的Zn-Cu复合纳米颗粒, 在500 ℃焙烧2 h得到纯净的ZnO-CuO纳米复合氧化物. 通过XRD和SEM对ZnO-CuO纳米材料进行分析表征. 以ZnO-CuO纳米复合氧化物为基体材料, 采用传统旁热式结构制成气敏元件, 研究其对C2H5OH的敏感性能. 结果表明, 这种方法制备的纯净ZnO-CuO纳米复合氧化物对乙醇具有良好的敏感特性.

关键词: ZnO-CuO, 纳米粉体, 线电爆炸, C2H5OH, 气敏元件

Abstract: Zn-Cu alloy nanocomposites were prepared directly from Zn-Cu alloy wire (w(Zn)=0.65)) by wire electrical explosion (WEE) method. The average particle size was in the range of 60-90 nm. Subsequently, Zn-Cu nanoparticles were oxidized to form ZnO-CuO nanocomposites after calcination at 500 ℃ in air for 2 h. X-ray diffraction (XRD) and scanning electron microscopy (SEM) were employed to analyze the structure and morphology of the ZnO-CuO nanocomposites. Furthermore, the ZnO-CuO nanocomposites were coated on the surface of a ceramic tube to fabricate thick filmgas sensors, which showed strong gas sensing activities to C2H5OH.

Key words: ZnO-CuO, Nanopowder, Wire electrical explosion, C2H5OH, Gas sensor

MSC2000: 

  • O649