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Thick film H2 sensors were fabricated using SnO2 loaded with Ag2O and PdOx. The composition that gave highest sensitivity for H2 was in the weight% ratio of SnO2:Ag2O:PdOx as 93:5:2. The nano-crystalline powders of SnO2-Ag2O-PdOx composites synthesized by sol-gel method were screen printed on alumina substrates. Fabricated sensors were tested against gases like H2, CH4, C3H8, C2H5OH and SO2. The composite...
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