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Although cobalt is an important Fischer-Tropsch catalyst, there is only limited fundamental knowledge about the factors determining the elementary steps, such as the dissociation of CO, the influence of adsorbed oxygen and the formation of oxygenates as by-products. To contribute to a deeper understanding in that respect, a well-defined model consisting of Co nanoparticles supported on an epitaxial...
We investigated the decomposition of methanol over Pd-based catalysts and the influence of Co as a second metal. To obtain mechanistic information on the reaction, we prepared structurally well-defined systems for studies in the ambient pressure regime and systems suitable for UHV studies in a dual approach. For the ambient pressure regime, monometallic and bimetallic Co/Pd nanoparticles supported...
Due to the discovery of Au as a catalyst for low temperature CO oxidation, the adsorption of CO on Au surfaces has attracted a lot of attention recently. On stepped and rough single crystal surfaces as well as on deposited particles two characteristic desorption states above 100K have been observed via TPD. We have studied Au deposits on graphite in order to elucidate the nature of these desorption...
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