Heterogeneous Catalytic Oxidation of Simple Alcohols by Transition Metals

作者：Leon Jacobse, Sebastiaan O. Vink, Sven Wijngaarden, Ludo B. F. Juurlink · 发表于：Journal of Chemical Education · 年份：2017 · DOI：10.1021/acs.jchemed.6b00909 · 被引用次数：17 · 研究领域：Computational Drug Discovery Methods、Catalysis and Oxidation Reactions、Mass Spectrometry Techniques and Applications

The "exploding" flask demonstration presents a well-known illustration of heterogeneous catalyzed methanol oxidation. We find that for the same vapor pressure, the demonstration also works for all primary and secondary alcohols up to butanol but not for a tertiary alcohol. Also, we show that the demonstration works for a large range of transition metal catalysts. Hence, this demonstration, which is often applied for the repetitive explosions when methanol is used, may also be used to argue the requirement of initial dehydrogenation of the alcohol to an aldehyde in the catalytic reaction mechanism to support the general insensitivity to reactant molecules in heterogeneous catalysis in contrast to biological catalysis and to provide proof for activity trends as often depicted by volcano plots.