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H2S Sensor Based on Cr2O3-ɣFe2O3 Nanoparticles Synthesized via Photolysis Method
Hawraa Kassem Hami1, Hussain Ismail Abdulah1
1Department of Chemistry, College of Science, Mustansiriyah University, Baghdad, Iraq.
Abstract:
A H2S gas sensor has been manufactured using Cr2O3-ɣFe2O3 nanoparticles with ratios of (2:1, 1:1, and 1:2), using the photolysis method. The chemical composition and microstructure of the resulting samples were characterized using XRD, EDx, and SEM. The sensor's gas-sensing performance was examined at various operating temperatures ranging from 100°C to 250°C. The results demonstrated that the sensor had optimal response in detecting H2S gas at a ratio of 1:2. Furthermore, the discussion revolved around the sensor's sensing mechanism specifically for H2S.
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