Dehydrogenation and Oxidative Dehydrogenation of n-Butane using Vanadium Based Catalysts: an in situ XPS study

The surface electronic structure of VxOy/alumina catalysts (1-8 wt% V) was investigated using high pressure in situ XPS and XAS. Link between the electronic structure of vanadium and catalytic activity was established

Pinning the catalytic centre: A new concept for catalysts development

A new concept for the development of catalysts is introduced. Utilizing ordered Pd-Ga intermetallic compounds high selectivity and long-term stability in the acetylene hydrogenation can be achieved. The high selectivity observed for all compounds (Pd3Ga7, PdGa, Pd2Ga) indicates that not only the surface geometric site isolation but also the suppression of hydride formation through a covalent bonding interaction absent in conventional Pd alloys are important for achieving superior catalytic properties. Our results demonstrate that structurally well-defined intermetallic compounds exhibit a high potential in heterogeneous catalysis and are promising candidates for industrial applications