01811nas a2200217   4500008004100000022001400041245008200055210006900137260011000206300001400316490000600330520101100336100001401347700002001361700001701381700001801398700001801416700002901434700001901463856011101482       2015                        eng d  a2044-475300aHydrogen production by the water-gas shift reaction using CuNi/Fe2O3 catalyst0 aHydrogen production by the watergas shift reaction using CuNiFe2  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcFEB  a2752-27600 v53 a<p>Incorporation of both Cu and Ni together into the crystalline lattice of Fe2O3 results in a significant increase in the catalytic activity and also suppresses the methanation reaction in the high-temperature water-gas shift (HT-WGS) reaction. CuNi/Fe2O3 exhibited the highest CO conversion with negligible CH4 selectivity at the extremely high GHSV of 101 000 h(-1) (X-CO = 85% at 400 degrees C). The high activity of CuNi/Fe2O3 catalyst is mainly due to the increase in the lattice strain and the decrease in the binding energy of lattice oxygen. In addition, X-ray photoelectron spectroscopy (XPS) results provide direct evidence for the formation of surface CuNi alloy, which plays a critical role in suppressing the methanation reaction. The detailed characterization by powder X-ray diffraction (XRD), XPS, BET, and H-2 temperature-programmed reduction (TPR) techniques was used to understand the role of dopants on host iron oxides in the enhancement of catalytic activity for HT-WGS reaction.</p>1 aJha, Ajay1 aJeong, Dae-Woon1 aShim, Jae-Oh1 aJang, Won-Jun1 aLee, Yeol-Lim1 aRode, Chandrashekhar, V.1 aRoh, Hyun-Seog  uhttps://library.ncl.res.in/content/hydrogen-production-water-gas-shift-reaction-using-cunife2o3-catalyst-0