Hydrothermal Synthesis and Ammonia Sensing Properties of WO3/Fe2O3 Nanorod Composites

被引：0
|
作者：
Nguyen Dac Dien
Luong Huu Phuoc
Vu Xuan Hien
Dang Duc Vuong
Nguyen Duc Chien
机构：
[1] Hanoi University of Science and Technology (HUST),School of Engineering Physics (SEP)
来源：
Journal of Electronic Materials | 2017年 / 46卷
关键词：
WO; /Fe; O; nanocomposite; gas sensor; hydrothermal process;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
WO3 nanorods (NRs) and α-Fe2O3 NRs were fabricated by hydrothermal treatment. Composites of these materials were created by mixing with ratios of 1:2, 1:1 and 2:1 in weight. Morphology, structure and composition characteristics of the WO3/Fe2O3 NRs composites were characterized by scanning electron microscopy, x-ray diffraction and energy dispersive x-ray spectroscopy analyses. The results of sensing measurements indicated that the sensor based on WO3:Fe2O3 with the ratio of 2:1 exhibited fairly good sensitivity toward NH3 at 300°C and the sensor based on WO3:Fe2O3 with the ratio of 1:1 can be used as a NH3 sensor with an operating temperature of 350°C. Selectivity and response–recovery times are suitable for practical applications. Finally, the mechanism for the improvement in the gas-sensing property was discussed.
引用
收藏
页码：3309 / 3316
页数：7
相关论文
共 50 条
  • [41] Differences in Electrophysical and Gas Sensing Properties of Flame Spray Synthesized Fe2O3(γ-Fe2O3 and α-Fe2O3)
    Flak, Dorota
    Braun, Artur
    Michalow, Katarzyna A.
    Wyrwa, Jan
    Parlinska-Wojtan, Magdalena
    Graule, Thomas
    Rekas, Mieczyslaw
    JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2012, 12 (08) : 6401 - 6411
  • [42] Solvothermal synthesis of WO3 nanocrystals with nanosheet and nanorod morphologies and the gas-sensing properties
    Wang, Zishuai
    Hu, Ming
    Qin, Yuxiang
    MATERIALS LETTERS, 2016, 171 : 146 - 149
  • [43] Hydrothermal synthesis of WO3•1/3H2O nanorods and study of their electrical properties
    Boukriba, M.
    Sediri, F.
    Gharbi, N.
    POLYHEDRON, 2010, 29 (09) : 2070 - 2074
  • [44] Organic Acids Assisted Hydrothermal Synthesis of WO3 Nanoplates and Their Gas Sensing Properties
    Mehta, S. S.
    Suryavanshi, S. S.
    Mulla, I. S.
    2015 2nd International Symposium on Physics and Technology of Sensors, 2015, : 142 - 146
  • [45] Facile hydrothermal synthesis of nanobricks assembled WO3 microflowers and their ethanol sensing properties
    Mehta, Swati S.
    Tamboli, Mohaseen S.
    Mulla, Imtiyaz S.
    Suryavanshi, Sharad S.
    MATERIALS LETTERS, 2017, 207 : 80 - 84
  • [46] Hydrothermal Synthesis of WO3•0.33H2O Nanorod Bundles as a Highly Sensitive Cyclohexene Sensor
    Liu, Xiaofei
    Su, Xintai
    Yang, Chao
    Ma, Kongjun
    SENSORS, 2019, 19 (05)
  • [47] Hydrothermal Synthesis of Monodisperse α-Fe2O3 Nanoparticles
    Wang, Hong
    Yan, Jie
    Lou, Hong
    Feng, Xue
    APPLICATION OF CHEMICAL ENGINEERING, PTS 1-3, 2011, 236-238 : 1814 - +
  • [48] Hydrothermal synthesis of porous α-Fe2O3 nanorods
    Wang, Yan
    Cao, Jian-Liang
    Sun, Guang
    Zhang, Zhan-Ying
    FRONTIER OF NANOSCIENCE AND TECHNOLOGY, 2011, 694 : 195 - +
  • [49] Hydrothermal synthesis of monodisperse α-Fe2O3 nanocubes
    Liu, J.
    Wang, J.
    Li, Y.
    Jia, P.
    Lu, F.
    Chen, K.
    MATERIALS RESEARCH INNOVATIONS, 2015, 19 : 371 - 375
  • [50] Fabrication of WO3/Fe2O3 heterostructure photoanode by PVD for photoelectrochemical applications
    Al-Aisaee, Nawaf
    Alhabradi, Mansour
    Yang, Xiuru
    Alruwaili, Manal
    Rasul, Shahid
    Tahir, Asif Ali
    SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2023, 263
12345