02049nas a2200229   4500008004100000022001400041245009900055210006900154260009900223300001400322490000700336520120000343653002401543653001801567653002001585653000901605100001801614700001801632700002201650700002401672856012301696       2012                        eng d  a0272-884200aStudies on the resistive response of nickel and cerium doped SnO2 thick films to acetone vapor0 aStudies on the resistive response of nickel and cerium doped SnO  aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLANDbELSEVIER SCI LTDcDEC  a6171-61790 v383 a<p>Undoped and Ni, Ce-doped nanocrystalline tin oxide were synthesized by co-precipitation route. Doped as well as undoped SnO2 compositions revealed single phase structure without any impurity. The lattice constant of SnO2 increases and the grain size decreases with doping of Ni and Ce. The responses of the sensing elements are evaluated by measuring the resistance change upon exposure to various test gases such as liquid petroleum gas (LPG), acetone, ethanol and ammonia. In comparison to LPG, ethanol, and ammonia the response towards acetone vapor increases markedly on simultaneous doping of Ni and Ce. For acetone vapors with 500 ppm at 300 degrees C, the undoped SnO2 shows 31% response, while with individual Ni or Ce doping it increases to 38 and 60%, respectively, however with simultaneous doping of Ni and Ce there is a significant enhancement up to 92%. The results of gas sensing measurements reveal that the thick films deposited on alumina substrates using screen printing technique give selectively a high response of (87%) with fast recovery (similar to 1 min) towards 100 ppm acetone at 300 degrees C. (c) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.</p>10a(Ni plus Ce)-doping10aAcetone vapor10aScreen-printing10aSnO21 aBagal, L., K.1 aPatil, J., Y.1 aMulla, Imtiaz, S.1 aSuryavanshi, S., S.  uhttps://library.ncl.res.in/content/studies-resistive-response-nickel-and-cerium-doped-sno2-thick-films-acetone-vapor-0