TY - EJOUR
AU - Esmaeili, Mostafa
AU - Kiani, Gholamreza
AU - Nogorani, Farhad Shahriari
AU - Boroomand, Saeed
PY - 2024
DA - February
TI - Acetone sensing properties of hierarchical WO3 core-shell microspheres in comparison with commercial nanoparticles
T2 - International Journal of Nano Dimension (Int. J. Nano Dimens.)
VL - 7
L1 - https://oiccpress.com/international-journal-of-nano-dimension/article/acetone-sensing-properties-of-hierarchical-wo3-core-shell-microspheres-in-comparison-with-commercial-nanoparticles/
DO - 10.7508/ijnd.2016.03.009
N2 - In this work, hierarchical WO3 core-shell microspheres were synthesized via a facile template-free precipitation method. Gas sensing properties of the synthesized powder to acetone and some other volatile organic compounds were comparatively investigated with commercial WO3 nanoparticles. The synthesized and commercial powders were characterized by X-ray diffraction, scanning electron microscopy, particle size distribution analysis, Brunauer–Emmett–Teller and Barrette-Joyner-Halenda techniques. Gas sensors were fabricated by deposition of powders between/on interdigitated electrodes via sedimentation approach. The results show that both sensors are sufficiently sensitive to detect 1.8 ppm of acetone; diabetes diagnosis threshold in human exhaled breath. Indeed, the hierarchical based one is highly sensitive and more selective to acetone.
IS - 3
PB - OICC Press
KW - Diabetes, Nanoparticles, WO3., Gas sensor, Acetone, Core-shell microspheres 
EN -