Structural and Acetone Sensing Properties of La-Doped Porous In2O3 Nanospheres by Hydrothermal Synthesis

Dan Han; Peng Song; Qi Wang; Hui Hui Zhang

doi:10.4028/www.scientific.net/AMR.1053.177

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1053Structural and Acetone Sensing Properties of...

Structural and Acetone Sensing Properties of La-Doped Porous In₂O₃ Nanospheres by Hydrothermal Synthesis

Abstract:

The La-doped porous In₂O₃ nanospheres were prepared by a simple hydrothermal method, and La³⁺ accounted for 3 mol% of the In³⁺. The La exists and has been doped in the lattice of In₂O₃characterized respectively by the means of energy dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD), the morphology of the samples with uniform nanospheres observed by field-emission scanning electron microscopy (FESEM). Moreover, the sensor exhibits higher response properties compared with pure porous In₂O₃ nanospheres towards different acetone concentration at operating temperature 300 °C. The response and recovery times is about 13 s and 8 s to 50 ppm acetone.

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Advanced Materials Research (Volume 1053)

Pages:

177-180

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1053.177

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Online since:

October 2014

Authors:

Dan Han*, Peng Song, Qi Wang, Hui Hui Zhang

Keywords:

Acetone Sensing Properties, In₂O₃ , La-Doped, Nanospheres

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