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- W2000764811 abstract "Nanostructured composites based on copper oxide and cerium dioxide phases [CuO–CeO2] were elaborated from sol–gel route, with weight fractions of CuO phase ranging between 0 and 0.4. They are interesting potential catalysts allowing conversion of CH4 and CO into CO2 and H2O and might be used in miniaturized gas sensors. An electrical study of this nanostructured system was carried out to determine catalytic behaviours under air–methane impulses at 350 °C. The electrical analysis was based on a specific homemade electronic device. Time dependent interactions between gas pulses and solid catalyst (CuO/CeO2) were analyzed from a frequency modification of the electronic device. Kinetic parameters were determined from a model describing adsorption and desorption of gases adapted to short interaction time between gas and solid. These time dependent electrical behaviours were then correlated with infrared spectroscopy analyses allowing time dependent analysis of methane conversion into CO2 gas, for long interaction time between gas and solid." @default.
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- W2000764811 date "2007-07-01" @default.
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- W2000764811 title "Electrical behaviour of catalytic nanostructured CeO2/CuOx composites under air–methane gas impulses" @default.
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- W2000764811 doi "https://doi.org/10.1016/j.apsusc.2007.03.040" @default.
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