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Supported Heterogeneous Catalysts and Platinum Group Metal Catalysts - Alfa Aesar

Platinum group metal catalysts are widely used in chemical processes for reactions ranging from gas phase oxidation through selective hydrogenation of chemical, petrochemical, and pharmaceutical feedstocks to fuel cell power generation. All six of the platinum group elements have significant catalytic properties; however, platinum, palladium, rhodium, and ruthenium are the most widely used.

Although platinum group metals are more expensive in initial cost than base metal catalysts, they often prove to be more reactive and selective, and require less severe reaction conditions. In addition, the spent catalyst can be recovered and the precious metal reprocessed into fresh catalyst.

Johnson Matthey has served the platinum group metals industry for over 200 years. With our considerable experience and expertise in the manufacture of catalysts and in catalyst technology, we welcome the opportunity to help develop new catalysts to meet your unique requirements and improve your processing.

Heterogenous Catalysts

The major factors affecting the properties of a heterogenous catalyst are the selection of the most appropriate support material and the location of the metal within the pore structure of the support. The most common types of powdered and particulate supports are:

  • Activated carbon
  • Alumina
  • Calcium carbonate
  • Barium sulfate
  • Alumina
  • Carbon

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