University of California

University of South Carolina

Sunkyu Kim

Erdem Sasmaz

Jochen Lauterbach

The present disclosure relates to yolk-shell structured catalysts having compositions that can be particularly useful in the dry reforming of methane. These catalysts can demonstrate long-term stability that would be an advantage in industrial applications such as mitigating fossil fuel plant emissions. Example catalysts can include a yolk containing nickel (Ni) or nickel oxide (NiO), platinum (Pt) or platinum oxide (PtO), and a third material (M3) such as a cerium oxide (CeO). The shell can be formed of a ceramic such as silica and is generally a porous material that can support the yolk.

High activity platinum and nickel yolk-shell catalysts

The present invention features a direct synthesis of light olefins through the hydrogenation of carbon dioxide. InOsupported on cubic phase yttria-stabilized zirconia is used as a catalyst and is mixed with a molecular sieve to perform the hydrogenation. The cubic crystal structure of the yttria-stabilized zirconium dioxide is an excellent support for indium oxide particles and prevents their deactivation during COhydrogenation. This direct synthesis route promotes a stable and efficient method for producing light olefins.

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Irvine, CA, United States of America

Sunkyu Kim