Generating Highly Active Partially Oxidized Platinum during Oxidation of Carbon Monoxide over Pt/Al2O3:In Situ,Time-Resolved,and High-Energy-Resolution X-Ray Absorption Spectroscopy

摘要

The oxidation of carbon monoxide is one of the most intensely studied reactions in heterogeneous catalysis.The preferential oxidation of carbon monoxide in a hydrogen-rich mixture is of considerable interest for the technical purification of the hydrogen feed gas.Furthermore,because platinum is an active component of automotive three-way catalysts,the determination of the active structure of platinum for the oxidation of carbon monoxide,nitric oxide,and hydrocarbons in the exhaust is relevant.