Abstract
The hybrid architectures comprising different types of nano-structured WO3 particles were prepared via facile surfactant-and template-free hydrothermal synthesis process. We demonstrate that morphology of the fabricated hybrid nanomaterials can be manipulated but the phases of those nanomaterials are still monoclinic and hexagonal hybrid structure via tuning the proportion of the reagents. The synthesis mechanism and the gas-sensing properties of the harvested nanomaterials have also been investigated. The as prepared WO3 nano-particles with hybrid architectures exhibit excellent gas-sensing functions to ethanol gas at the optimal temperature as low as 350 °C under the low concentration of 35 ppm, rendering them a promising sensing material for the on-site detection of ethanol.
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