01904nas a2200289   4500008004100000022001400041245012400055210006900179260007300248300001000321490000800331520090700339653000901246653001501255653001901270653002101289653002001310100001401330700002001344700001801364700001801382700001701400700002001417700002901437700001901466856012901485       2016                        eng d  a0926-860X00aChromium free high temperature water-gas shift catalyst for the production of hydrogen from waste derived synthesis gas0 aChromium free high temperature watergas shift catalyst for the p  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcJUL  a21-310 v5223 a<p>A comparative study between monometallic (Me-CeO2, Me =Zn, Cu, Fe and Co) and Ni-doped bimetallic (Me-Ni-CeO2) catalysts has been performed in the high temperature water-gas shift (HT-WGS) reaction using waste derived synthesis gas. Experimental results revealed that Me-Ni-CeO2 exhibited higher catalytic performance than simple Me-CeO2 catalysts. Within the Me-Ni-CeO2 series, Co-Ni-CeO2 exhibited excellent and stable catalytic performance (CO conversion &gt; 90%) at a very high GHSV of 143,000 h(-1). The existence of high" concentration of Ce3+ ions and oxygen vacancies on the catalyst surface were responsible for the increased WGS activity of Co-Ni-CeO2. In addition, Co-Ni-CeO2 maintains a stable performance for 50 h. However, commercial Fe2O3-Cr2O3 catalyst showed a steep decline from their initial CO conversion values 15-10% within 5 h. (C) 2016 Elsevier B.V. All rights reserved.</p>10aCeO210aCo-Ni-CeO210aLattice strain10aoxygen vacancies10aWater-gas shift1 aJha, Ajay1 aJeong, Dae-Woon1 aLee, Yeol-Lim1 aJang, Won-Jun1 aShim, Jae-Oh1 aJeon, Kyung-Won1 aRode, Chandrashekhar, V.1 aRoh, Hyun-Seog  uhttps://library.ncl.res.in/content/chromium-free-high-temperature-water-gas-shift-catalyst-production-hydrogen-waste-derived01636nas a2200265   4500008004100000022001300041245010800054210006900162260000800231300001000239490000800249520077800257100001701035700001701052700001801069700002001087700001701107700001801124700001501142700002001157700002001177700002901197700001901226856012501245       2018                        eng d  a0920586100aEffect of titration time on the catalytic performance of Cu/CeO2 catalysts for water-gas shift reaction0 aEffect of titration time on the catalytic performance of CuCeO2   cJUL  a83-880 v3093 aWe herein report the preparation of ceria (CeO2) via a simple precipitation method for use as a catalyst support in the water-gas shift (WGS) reaction. More specifically, we optimized the titration time required to obtain highly active CeO2-supported catalysts for the WGS reaction. As such, Cu was employed as the active metal coupled with the CeO2 support. Notably, the CeO2-0 supported Cu catalyst (where the precipitant was immediately injected into a cerium nitrate solution) exhibited the highest CO conversion at a gas hourly space velocity of 36,050 h(-1). This high catalytic activity of the Cu/CeO2-0 catalyst was mainly due to its high Brunauer-Emmett-Teller (BET) surface area, enhanced Cu dispersion, high number of oxygen vacancies, and enhanced reducibility.1 aNa, Hyun-Suk1 aShim, Jae-Oh1 aJang, Won-Jun1 aJeon, Kyung-Won1 aKim, Hak-Min1 aLee, Yeol-Lim1 aLee, Da-We1 aYoo, Seong-Yeun1 aBae, Jong, Wook1 aRode, Chandrashekhar, V.1 aRoh, Hyun-Seog  uhttps://library.ncl.res.in/content/effect-titration-time-catalytic-performance-cuceo2-catalysts-water-gas-shift-reaction