Abstract
The unique value of the Raney® catalyst is revealed through surface modifications that have extended this familiar platform into novel materials with enhanced productivity in practical hydrogenations. The illustrative examples each yielded new compositions through use of non-nickel metals: as efficient dopants (Pd, Pt), as an inexpensive alloy diluent (Fe) and substrate for plating, or as the primary catalyst metal (Raney® Cu) in a recently identified process upgrading a renewable feedstock. A perspective on the surface chemistry of metals links the various approaches.
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Acknowledgements
The author thanks Setrak K. Tanielyan, Robert L. Augustine, Norman Marin, and Gabriela Alvez of the Center for Applied Catalysis for useful mechanistic insights and for significant efforts in the PM/Ni and glycerol-propylene glycol testing, W. R. Grace & Co. technicians Douglas L. Smith and Linda Wandel for performing lab synthesis and characterizations, and the management of the Grace Specialty Catalysts and Renewable Technologies groups for support of our work and the encouragement to publish it.
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RANEY® is a trademark, registered in the United States and/or other countries, of W. R. Grace & Co.-Conn.
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Schmidt, S.R. Improving Raney® Catalysts Through Surface Chemistry. Top Catal 53, 1114–1120 (2010). https://doi.org/10.1007/s11244-010-9543-3
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DOI: https://doi.org/10.1007/s11244-010-9543-3