Abstract Monometallic copper, nickel and bimetallic Pd(Rh)-Cu(Ni) catalysts supported on a binary oxide containing various content of ZrO2 and Al2O3 were prepared by impregnation method. Their physicochemical and catalytic properties in oxy-steam reforming of methanol reaction (OSRM) were extensively investigated. Selecting an optimal composition of the catalyst for the OSRM process was the main goal of this work. The influence of zirconia content on the reactivity and physicochemical properties of supported copper catalysts in OSRM was also studied. The reactivity measurements showed that the supported copper catalyst was more active than the nickel catalyst. The catalytic measurements showed that the catalyst properties depend on their surface composition, acidity and adsorption properties. High selectivity of supported copper catalyst with composition 20%Cu/ZrO2·Al2O3 (Zr:Al = 1:2) towards carbon dioxide and hydrogen was confirmed. In addition, the promotion effect of palladium and rhodium on the activity of monometallic supported copper and nickel catalysts in OSRM was confirmed. The most active system in the OSRM process was 0.5%Rh-20%Cu/ZrO2·Al2O3.

中文翻译：

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用于甲醇氧蒸汽重整的新型 Rh(Pd)-Cu(Ni) 负载催化剂

摘要 采用浸渍法制备了负载在不同含量ZrO2和Al2O3二元氧化物上的单金属铜、镍和双金属Pd(Rh)-Cu(Ni)催化剂。广泛研究了它们在甲醇反应（OSRM）的氧蒸汽重整中的物理化学和催化性能。为 OSRM 过程选择催化剂的最佳组成是这项工作的主要目标。还研究了氧化锆含量对负载型铜催化剂在 OSRM 中的反应活性和理化性质的影响。反应性测量表明，负载型铜催化剂比镍催化剂活性更高。催化测量表明，催化剂的性能取决于它们的表面组成、酸度和吸附性能。证实了组成为 20%Cu/ZrO2·Al2O3 (Zr:Al = 1:2) 的负载型铜催化剂对二氧化碳和氢气的高选择性。此外，钯和铑对单金属负载铜和镍催化剂在 OSRM 中的促进作用得到证实。OSRM工艺中最活跃的体系是0.5%Rh-20%Cu/ZrO2·Al2O3。