%0 Journal Article
%T Hexagonal WO<sub>3</sub> Acetone Gas Sensor Modified by Graphene-COOH Functionalized (GCOOH)
%A Yuxuan Guo
%A Haiming Zhang
%J Open Access Library Journal
%V 10
%N 3
%P 1-7
%@ 2333-9721
%D 2023
%I Open Access Library
%R 10.4236/oalib.1109971
%X GCOOH-WO<sub>3</sub> composites mixed with different amounts of Graphene-COOH functionalized (GCOOH) (0, 0.05, 0.1 and 0.2 wt%) were prepared by hydrothermal method at 180&deg;C for 10 h and 24 h. The asprepared WO<sub>3</sub> and GCOOH-WO<sub>3</sub> composites were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and Raman spectroscopy and other equipment. The effect of the amount of graphene in the composites on the gas-sensing responses and the gas-sensing selectivity of the materials was investigated. The experimental results revealed that the sensor based on 0.1 wt% GCOOH-WO<sub>3</sub> composite exhibited high response and good selectivity to acetone at 260&deg;C.
%K WO<sub>3</sub>
%K GCOOH
%K Hydrothermal Method
%K Acetone
%K Gas Sensing Characteristic
%U http://www.oalib.com/paper/6792298