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Less-than-nm thick Pt nanoislands make Cr2O3 surface more susceptible for registration of H2 and CO. At 450 oC the response falls due to oxydation of Pt material by oxygen taken from lower-lying Cr2O3.
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This page is a summary of: Pt coated Cr2O3 thin films for resistive gas sensors, Open Physics, April 2009, De Gruyter,
DOI: 10.2478/s11534-009-0049-1.
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