Selective oxidation of carbon monoxide over CuO–CeO2 catalyst: Effect of hydrothermal treatment
作者： Chang Ryul Jung , Arunabha Kundu , Suk Woo Nam , Ho-In Lee
DOI: 10.1016/J.APCATB.2008.04.024
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摘要: Abstract Copper oxide–ceria (CuO–CeO 2 ) catalyst for selective oxidation of carbon monoxide (CO) was prepared by co-precipitation and hydrothermal treatment methods evaluated catalytic activity in a reformate gas composition which simulated the produced from methanol steam reforming. By applying condition treatment, CuO–CeO increased operating temperature window, concentration lower than 10 ppm, widened. From thermogravimetric (TG) results hydrothermally treated precursor, did not show any improvement physical properties such as Brunauer Emmett Teller (BET) surface area, pore volume average diameter, but chemical stability might be enhanced treatment. cuprous ion migrated to resulting copper formation cupric oxide on during calcination. While increasing calcination (i.e. above 800 °C), phase separation occurred with part formed observed X-ray diffraction (XRD) analysis.
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