10.3321/j.issn:0253-9837.2003.12.001
异丙醇探针反应表征Ce-Mo-O催化剂的酸性与氧化还原性
@@ Acidic and redox properties are two important aspects of metal oxide catalysts for selective oxidation reactions. Various methods have been used to characterize these properties, of which the isopropanol conversion is a useful probe reaction[1~3] that can give qualitative information. It is well known that acidic sites catalyze the dehydration of isopropanol to propylene and basic sites catalyze the dehydrogenation of isopropanol to acetone[1]. In addition, isopropanol can be converted into acetone by oxidative dehydrogenation in the presence of oxygen. Thus, dehydration and oxidative dehydrogenation are two competitive reactions in the presence of oxygen[2,3]. In this letter, we demonstrate that the isopropanol conversion is an effective way to probe the relative importance of surface acidic and redox sites of metal oxide catalysts.
异丙醇、探针反应、表征、催化剂、酸性、氧化还原性、oxidative dehydrogenation、metal oxide、competitive reactions、selective oxidation、relative importance
24
O643(物理化学(理论化学)、化学物理学)
国家自然科学基金20233040;国家重点基础研究发展计划973计划G199022408
2004-02-20(万方平台首次上网日期,不代表论文的发表时间)
共2页
885-886