01979nas a2200265   4500008004100000022001400041245007500055210006900130260007300199300001000272490000700282520111500289653001401404653001901418653001001437653003001447653000801477653000801485100001901493700001801512700002801530700002501558700002101583856010901604       2010                        eng d  a0039-914000aHighly sensitive and fast responding CO sensor based on Co3O4 nanorods0 aHighly sensitive and fast responding CO sensor based on Co3O4 na  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcAPR  a37-430 v813 a<p>Co3O4 nanorods (diameters similar to 6-8 nm and lengths similar to 20-30 nm) were synthesized for the first time through a simple co-precipitation/digestion method by calcination of cobalt hydroxyl carbonate in air and their CO gas sensing properties were investigated. The Co3O4 nanorods exhibited outstanding gas sensing characteristics such as, higher gas response (similar to 6.55-50 ppm CO gas at 250 degrees C), extremely rapid response (similar to 3-4s), fast recovery (similar to 5-6s), excellent repeatability, good selectivity and lower operating temperature (similar to 250 degrees C). Furthermore, the Co3O4 nanorods are able to detect up to 5 ppm for CO with reasonable sensitivity (similar to 3.32) at an operating temperature 250 degrees C and they can be reliably used to monitor the concentration of CO over the range (5-50 ppm). The experimental results clearly demonstrate the potential of using the Co3O4 nanorods as sensing material in the fabrication of CO sensors. Plausible CO sensing mechanism of the Co3O4 nanorods is also discussed. (C) 2009 Elsevier B.V. All rights reserved.</p>10aCO sensor10aCo3O4 nanorods10aHRTEM10aSemiconductor gas sensors10aXPS10aXRD1 aPatil, Dewyani1 aPatil, Pradip1 aSubramanian, Vijayanand1 aJoy, Pattayil, Alias1 aPotdar, Hari, S.  uhttps://library.ncl.res.in/content/highly-sensitive-and-fast-responding-co-sensor-based-co3o4-nanorods-001298nas a2200205   4500008004100000022001400041245013100055210006900186260011000255300001600365490000700381520043700388100002800825700002600853700002000879700001600899700003000915700001900945856012800964       2013                        eng d  a1359-734500aRationally designed CuFe2O4-mesoporous Al2O3 composite towards stable performance of high temperature water-gas shift reaction0 aRationally designed CuFe2O4mesoporous Al2O3 composite towards st  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcJUL  a11257-112590 v493 a<p>High temperature water-gas shift reaction was demonstrated for the first time on a CuFe2O4-mesoporous alumina nanocomposite between 350 and 550 degrees C with 70-80% CO-conversion using simulated waste derived syngas under realistic conditions. Despite high Al-content, the catalyst exhibited stable activity, which was attributed to the nano-architectured robust porous nature of alumina integrated with surrounding CuFe2O4.</p>1 aSubramanian, Vijayanand1 aGnanakumar, Edwin, S.1 aJeong, Dae-Woon1 aHan, Won-Bi1 aGopinath, Chinnakonda, S.1 aRoh, Hyun-Seog  uhttps://library.ncl.res.in/content/rationally-designed-cufe2o4-mesoporous-al2o3-composite-towards-stable-performance-high-0