Abstract
The perovskite Iron Yttrium Oxide (FeYO3) microspheres on the basis of bio-templates with orange peels have been successfully obtained by a facile hydrothermal ‘green synthesis’ along with multifarious characterization techniques. The XRD demonstrated that the synthesized sample was single phase FeYO3 with a hexagonal perovskite structure. Moreover, the solid microspheres with relatively rough surfaces were displayed by SEM and TEM. Benefiting from this fact, the sensor based on p-type semiconductor FeYO3 microspheres showed good gas sensing characteristics towards ethanol at the optimum operating temperature of 330 °C with a low detection limit (1 ppm), good repeatability and fast response/recover time, etc. Accordingly, this work supplies a good experimental basis for FeYO3 as a novel semiconductor gas sensing material soon.
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