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-001905nas a2200229   4500008004100000245012800041210006900169260000800238300001200246490000800258520111200266100001801378700001801396700001901414700001801433700001901451700001801470700001701488700002401505700001801529856012801547       2019                        eng d00aEnhanced energy density and stability of self-assembled cauliflower of Pd doped monoclinic WO3 nanostructure supercapacitor0 aEnhanced energy density and stability of selfassembled cauliflow  cMAR  a192-1990 v2253 aEnhanced electrochemical performance of WO3 nanostructures by engineering their morphology, structural and surface defect at nanoscale is feasible. Herein we report the effect of Pd doping on the morphological and electrochemical properties of WO3 at nanoscale prepared by a simple hydrothermal method. The synthesized pristine WO3 (cabbage like morphology) and Pd doped WO3 (cauliflower like morphology) are examined by using XRD, XPS, Raman spectra, BET, FE-SEM, TEM. The morphological investigation shows the effective rebuilding of nanosheets assembled cabbage shaped pristine WO3 into nanobricks assembled cauliflower shaped Pd doped WO3 with improvement in crystallinity, surface area and conductivity. As a result, the enhancement in the electrochemical performance of cauliflower shaped Pd-WO3 is recorded four times higher specific capacitance than pristine WO3. Additionally, the excellent cyclic stability (almost ten times higher than pristine WO3) up to 1100 cycles with nearly 86.95% capacity retention is observed in Pd-WO3 attributed to Pd content and highly modified structural arrangement.1 aGupta, S., P.1 aPatil, V., B.1 aTarwal, N., L.1 aBhame, S., D.1 aGosavi, S., W.1 aMulla, I., S.1 aLate, D., J.1 aSuryavanshi, S., S.1 aWalke, P., S.  uhttps://library.ncl.res.in/content/enhanced-energy-density-and-stability-self-assembled-cauliflower-pd-doped-monoclinic-wo3