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储向峰,干正强,白林山,董永平,Marina N. Rumyantseva.静电纺丝发制备铁酸锌纳米纤维及其气敏性能研究[J].稀有金属材料与工程(英文),2019,48(5):1371~1379.[Chu Xiangfeng,Gan Zhengqiang,Bai Linshan,Dong Yongping and Marina N. Rumyantseva.The acetone-sensing properties of ZnFe2O4 nanofibers prepared via electrospinning method[J].Rare Metal Materials and Engineering,2019,48(5):1371~1379.]
The acetone-sensing properties of ZnFe2O4 nanofibers prepared via electrospinning method
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Received:December 26, 2017  Revised:March 23, 2019
DOI:
Key words: nanofibers  acetone sensor  selectivity  electrospinning  ZnFe2O4
Foundation item:国家教育部回国人员科研启动基金,国家自然科学基金项目(面上项目,重点项目,重大项目)
Author NameAffiliation
Chu Xiangfeng,Gan Zhengqiang,Bai Linshan,Dong Yongping and Marina N. Rumyantseva  
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Abstract:
      Compared with zero dimensional, two dimensional and three dimensional nano-materials, one dimensional nano-materials have superior gas sensing properties. In this paper, one dimensional ZnFe2O4 nano-fibers were prepared via electrospinning method using Zn (NO3)2? 6H2O and Fe (NO3)3? 9H2O as raw materials. The precursor was analyzed by TG-DSC, and the as-prepared samples were characterized by XRD, SEM, TEM, FTIR, nitrogen adsorption and XPS, respectively. The gas sensing properties of the as-prepared samples were investigated. The results showed that ZnFe2O4 prepared at 500oC exhibited nano-fiber morphology; it was revealed that the sensor device based on ZnFe2O4 nanofibers prepared at 500?C exhibited excellent selectivity toward acetone at the operating temperature of 190oC, the ratio of S1000 ppm acetone to S1000 ppm ethanol reached 8; when the concentration of acetone was as low as 1 ppm, the response was still able to reach 1.1.