WO3 mono-nanocrystals: Synthesis, characterization and evaluation of their electrical behavior in and acetone

被引：0
作者：
Bolanos, Juan D. Munoz [1 ]
Rodriguez-Paez, J. E. [1 ]
机构：
[1] Univ Cauca, Dept Phys, CYTEMAC Res Grp, Popayan, Colombia
来源：
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2021年 / 274卷
关键词：
Synthesis by chemical route; Characterization; WO3; mono-nanocrystals; Electrical resistance; oxygen-; acetone; TUNGSTEN TRIOXIDE; WO3-X CRYSTALS; GAS SENSORS; OXIDE; NANOPARTICLES; STABILITY;
D O I：
10.1016/j.mseb.2021.115472
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
WO3 nanoparticles were synthesized using the modified polymer complex method. The synthesized powders were characterized using infrared and UV-Vis absorption spectroscopy, X-ray diffraction (XRD), photoluminescence (PL), scanning (SEM) and transmission (TEM) electron microscopies. Results revealed the synthesized WO3 particles are monocrystalline, with a monoclinic structure (space group P21/c) and a size of 30 nm, a gap of 2.8 eV with structural defects promoting gas sensing. Using these powders, ceramic pieces were formed by the slip casting method and the sintered pieces evaluated for their electrical behavior in the presence of oxygen and acetone vapors. The favorable ability of WO3 to sense these gases and its potential use by way of acetone sensing in the diagnosis of diseases such as diabetes mellitus were reiterated in light of the results obtained in this trial.
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页数：11
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