WO<sub>3</sub>纳米棒/石墨烯复合材料的制备及其气敏性能研究

桂阳海; 孔华杰; 刘贝贝; 付柯瑞; 王槐顺; 袁朝圣

doi:10.3969/j.issn.2095-476X.2015.5/6.002

November 2015

Article Contents

GUI Yang-hai, KONG Hua-jie, LIU Bei-bei, et al. Synthesis and gas-sensing properties of WO3 nanorods/graphene composites[J]. Journal of Light Industry, 2015, 30(5-6): 7-11. doi: 10.3969/j.issn.2095-476X.2015.5/6.002

Citation: GUI Yang-hai, KONG Hua-jie, LIU Bei-bei, et al. Synthesis and gas-sensing properties of WO3 nanorods/graphene composites[J]. Journal of Light Industry, 2015, 30(5-6): 7-11. doi: 10.3969/j.issn.2095-476X.2015.5/6.002 shu

Synthesis and gas-sensing properties of WO₃ nanorods/graphene composites

Cellege of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China;
College of Physics and Electronic Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China

Received Date: 2015-04-28
Available Online: 2015-11-15

Abstract

Using sodium tungstate and hydrochloric acid as raw materials, oxalic acid and sodium sulfate as auxiliary agents, WO₃ nanorods/graphene composites had been synthesized by hydrothermal method. The as-synthesized samples were characterized by XRD, FE-SEM, RAMAN and FTIR. Gas-sensing characteristics of the materials had been tested by static state method. The results illustrated that the as-synthesized pure WO₃ had monoclinic phase and the WO₃/graphenenanomaterial had tetragonal phase. The length-diameter ratio of the materials increased when the amounts of graphene oxide (GO) increased, and the 1.0 wt% WO₃/graphenenanocomposite had a good gas-sensing property. Its sensitivity could reach 1.779 of 5×10^-6 H₂ at 2.96 V working voltage(about 155℃). And this time, the response and recovery time was 3 s and 4 s, respectively.
- WO₃ nanorods/graphene composite,
- hydrothermal,
- gas-sensing performance
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