<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Khadse, V. R.</style></author><author><style face="normal" font="default" size="100%">Thakur, Sharada</style></author><author><style face="normal" font="default" size="100%">Patil, K. R.</style></author><author><style face="normal" font="default" size="100%">Patil, Pradip</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Humidity-sensing studies of cerium oxide nanoparticles synthesizedby non-isothermal precipitation</style></title><secondary-title><style face="normal" font="default" size="100%">Sensors and Actuators B-Chemical</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">CeO2 nanoparticles</style></keyword><keyword><style  face="normal" font="default" size="100%">Complex impedance spectra</style></keyword><keyword><style  face="normal" font="default" size="100%">humidity sensor</style></keyword><keyword><style  face="normal" font="default" size="100%">Non-isothermal precipitation</style></keyword><keyword><style  face="normal" font="default" size="100%">TEM</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2014</style></year><pub-dates><date><style  face="normal" font="default" size="100%">NOV</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">ELSEVIER SCIENCE SA</style></publisher><pub-location><style face="normal" font="default" size="100%">PO BOX 564, 1001 LAUSANNE, SWITZERLAND</style></pub-location><volume><style face="normal" font="default" size="100%">203</style></volume><pages><style face="normal" font="default" size="100%">229-238</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;We report the fabrication of a highly sensitive and fast humidity sensor based on cerium oxide (CeO2) nanoparticles, which were prepared at low cost via a simple non-isothermal precipitation method. The asprepared CeO2 nanoparticles were characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy( TEM) and the results indicated the formation of face centered cubic phase of CeO2 with average crystallite size of approximately 10-12 nm. Humidity sensors based on CeO2 nanoparticles exhibit high and linear response within the whole relative humidity (RH) range of 11-97% at an operating frequency of 60 Hz. The corresponding impedance changes by approximately three orders of magnitude within the entire humidity range from 11% to 97% RH. The response and recovery times are about 2-3 and 9-10 s, respectively, when RH was switched between 11% and 97%. Furthermore, the sensors also show relatively small hysteresis, excellent reproducibility, long term stability and broad range of operation (11-97% RH). The complex impedance spectra of the sensor at different RHs and the equivalent circuit were analyzed to explore the humidity-sensing mechanism. This study demonstrates that the CeO2 nanoparticles prepared by non-precipitation method can be used as the humidity-sensing material for the fabrication of humidity sensors. (C) 2014 Elsevier B. V. All rights reserved.&lt;/p&gt;</style></abstract><custom3><style face="normal" font="default" size="100%">Foreign</style></custom3><custom4><style face="normal" font="default" size="100%">4.62</style></custom4></record></records></xml>