Influence of working temperature on the structure and gas-sensing properties of γ-FeOOH submicron spheres

Iron oxyhydroxide (FeOOH) is an interesting material with major applications in water treatment. However, the gas-sensing properties of this nano-/micromaterial are not understood. Herein, we introduce a facile process for synthesizing submicron-sized γ-FeOOH spheres. The formation process of the γ-...

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Bibliographic Details
Published in:Materials science in semiconductor processing 2020-03, Vol.107, p.104857, Article 104857
Main Authors: Hien, Vu Xuan, Hung, Pham Tien
Format: Article
Language:English
Subjects:
Gas sensors
Iron oxides
Metal
Microstructures
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Summary:Iron oxyhydroxide (FeOOH) is an interesting material with major applications in water treatment. However, the gas-sensing properties of this nano-/micromaterial are not understood. Herein, we introduce a facile process for synthesizing submicron-sized γ-FeOOH spheres. The formation process of the γ-FeOOH phase after treatment is proposed, and the gas-sensing properties of the as-synthesized materials are investigated using NH3, H2S, NO2, and SO2. The influence of working temperature (from 25 °C to 300 °C) on material structure and gas-sensing performance is also studied and the gas-sensing process is explained and discussed.
ISSN:1369-8001
1873-4081
DOI:10.1016/j.mssp.2019.104857