01888nas a2200241   4500008004100000022001400041245008900055210006900144260006900213300001200282490000800294520105600302653002301358653001501381653001801396653001501414100001801429700001801447700002501465700002201490700002401512856011001536       2015                        eng d  a0925-400500aEffect of Pd and Ce on the enhancement of ethanol vapor response of SnO2 thick films0 aEffect of Pd and Ce on the enhancement of ethanol vapor response  aPO BOX 564, 1001 LAUSANNE, SWITZERLANDbELSEVIER SCIENCE SAcFEB  a383-3900 v2073 a<p>The undoped SnO2 and 4 wt% Ce-doped SnO2 were successfully synthesized by a facile co-precipitation route. The ternary systems were prepared by Pd-loading (0.5, 1.5 and 3.0 wt%) on the 4 wt% Ce-doped SnO2 nanoparticles. The structure and morphology of the nanocrystalline powders were investigated by X-ray diffraction, scanning electron microscopy and transmission electron microscopy techniques. The nanocrystalline powders were screen printed on the alumina substrates to form thick films to investigate their gas response properties. The gas response studies reveal that 4 wt% Ce-doped SnO2 with the loading of 3.0 wt% Pd exhibits high response (88%) towards ethanol (100 ppm) at an operating temperature of 250 degrees C with quick response (6 s) and rapid recovery (20 s). The high ethanol vapor response at lower operating temperature of this sensor is attributed to the spill-over mechanism of Pd particles present on the SnO2 surface and enhancement in alkalescence of SnO2 due to Ce-doping. (C) 2014 Elsevier B.V. All rights reserved.</p>10aCe-doped tin oxide10aGas sensor10aSemiconductor10aThick film1 aBagal, L., K.1 aPatil, J., Y.1 aVaishampayan, M., V.1 aMulla, Imtiaz, S.1 aSuryavanshi, S., S.  uhttps://library.ncl.res.in/content/effect-pd-and-ce-enhancement-ethanol-vapor-response-sno2-thick-films-0