JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) ›› 2014, Vol. 49 ›› Issue (07): 18-22.doi: 10.6040/j.issn.1671-9352.0.2014.194

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Hydrothermal synthesis of ZnO/SnO composite nanorods as gas sensors for volatile organic compounds detection

FENG Zhen-yu1, BAO Wen-ya1, ZHANG Shi-shu1, ZHANG Jun-yan1, ZHANG Zheng-lin2   

  1. 1. School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, Shandong, China;
    2. School of Chemistry and Chemical Engineering, Harbin normal university, Harbin 150025, Heilongjiang, China
  • Received:2014-05-04 Online:2014-07-20 Published:2014-09-15

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Abstract: The Porous ZnO/SnO composite nanorods were fabricated through hydrothermal method. The prepared hexagonal wurtzite structure ZnO nanorods were coated by SnO as porous shells. The structure and morphology of the resultant products were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM) and energy dispersive spectrdmeter (EDS). The BET nitrogen adsorption—desorption technique indicated the as-prepared composite nanorods with 11.38 m2/g surface area. The gas sensing properties of the as-prepared ZnO/SnO composite nanorods were investigated. The composite nanorods exhibited a superior gas sensing performance toward ppm level formaldehyde vapor, implying promising applications in detecting toxic volatile organic compounds (VOCs).

Key words: SnO, gas sensor, composite nanorod, ZnO

CLC Number: 

  • O614
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