摘要
通过静电纺丝法成功制备出CuO/ZnO多孔复合纳米纤维。对材料的气敏性能进行测试,结果表明:Cu的引入可以有效降低材料的工作温度和提高材料对乙醇气体的选择性和灵敏度。随着Cu含量的增加,材料对乙醇气体的灵敏度先增加后降低,其中CuO/ZnO(Cu∶Zn=1∶10)对乙醇的灵敏度和选择性最佳。最后,对复合纳米纤维材料的敏感机理进行了研究,并初步探索了引入Cu后材料工作温度降低和灵敏度增加的原因。本项工作有助于开发新型高效的酒精传感器和拓宽复合纤维材料的实际应用。
Porous CuO / ZnO composite nanofibers were prepared by electrospinning method. The gas sensing properties of materials were tested. The results indicate that the introduction of Cu can efficiently decrease the materials ' working temperature and increase their selectivity and sensitivity towards ethanol gas. With the increase of the content of Cu,the materials' sensitivity towards ethanol gas first rise then drop,and CuO / ZnO( Cu∶ Zn =1∶10) exhibit the best selectivity and sensitivity. Finally,the gas sensing mechanism of composite nanofibers is examined,and the possible reasons for the materials ' decreased working temperature and enhanced response after introducing Cu are initially explored. This work helps to develop new and highly efficient alcohol sensor and broaden practical application of composite nanofibers.
出处
《人工晶体学报》
EI
CAS
CSCD
北大核心
2015年第12期3526-3531,共6页
Journal of Synthetic Crystals
基金
国家自然科学基金(51272158
51402193)
教育部创新团队滚动项目(IRT-14R48)
长江学者奖励计划([2009]17)
