Author(s)

Yuxuan Guo, Haiming Zhang^*

School of Physical Sciences and Technology, Tiangong University, Tianjin, China.

GCOOH-WO₃ 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°C for 10 h and 24 h. The asprepared WO₃ and GCOOH-WO₃ 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-WO₃ composite exhibited high response and good selectivity to acetone at 260°C.

WO₃, GCOOH, Hydrothermal Method, Acetone, Gas Sensing Characteristic

Guo, Y.X. and Zhang, H.M. (2023) Hexagonal WO₃ Acetone Gas Sensor Modified by Graphene-COOH Functionalized (GCOOH). Open Access Library Journal, 10, 1-7. doi: 10.4236/oalib.1109971.