Synthesis of CuPt Nanorod Catalysts with Tunable Lengths

摘要

Pt and Pt-containing alloys are important industrial catalysts and have many interesting properties and practical applications, particularly as nanoparticles. For example, Pt nanoparticles are efficient catalysts for CO oxidation and steam reforming reactions. Pt-M alloys (M = Fe, Co, Ni) have also been found to exhibit useful magnetic properties. From a catalysis perspective, Pt is expensive, and it is usually poisoned by CO, C, or S. This results in the blocking of active sites, reducing over time their catalytic efficacy. The ability to create bi- or trimetallic Pt-based nanoma-terials may prove to be a useful route for reducing the overall cost of the catalyst while retaining desirable catalytic properties and also affording a decrease in susceptibility to poisoning.