Precious Metal Catalyst


Precious metal catalysts are also termed “noble metal catalysts”, showing unique characteristics in our lives. They possess an incompletely filled d-orbital to lend electrons or withdraw electrons from the reagent, depending on the nature of the reaction. Hence, precious metals always show high activity and selectivity in catalysis. Apart from this, precious metal catalysts are also stable and are not easily form oxides by oxidation. Not only high activity but also high thermal stability of precious metal catalysts allows us to use precious metal catalysts for wide range of applications, such as pharmaceuticals, agrochemicals, petrochemicals, chemicals, environment and material sciences.

Precious Metal Catalyst

Alfa Chemistry has created a tangible competitive advantage for customers with high quality precious metal catalysts as well as optimal prices. Most of our products can be supplied ranging from milligrams to kilograms scale and arrived with technology documents (SDS, CoA or Spec Sheet). In regard to the metal catalysts, Alfa Chemistry can provide the most common types of catalysts.


Especially, precious metal catalysts are widely used in chemical processes for reactions, such as hydrogenation, asymmetric hydrogenation, dehydrogenation, reductive amination, alkylation, hydrogenation cracking reaction, disproportionation, degradation, carbonylation, hydrogenation selective oxidation, hydrosilylation, acetoxylation, dehalogenation, debenzylation, oxidizing reaction and gas purity reaction.

Thus for example, the palladium catalysts are suitable catalyst for urea directed C-H activation even at mild reactions condition because of its good functional groups tolerance and often are able to provide excellent stereoselectivity and regiospecificity. Novák's group from Eötvös Loránd University used a novel palladium catalyst to finish the first fluoroalkylation process by C-H activation for the access of ortho trifluoroethylated aromatic ureas. Also they added the novel, highly active trifluoroeth-yl(mesityl)iodonium salt and used TFA as additive to realize efficient conversion.

Direct ortho-Trifluoroethylation of Aromatic Ureas by Palladium Catalyzed C-H activation: A Missing Piece of Aromatic SubstitutionsFigure 1. The application of Palladium catalyst in organic reaction.
Direct ortho-Trifluoroethylation of Aromatic Ureas by Palladium Catalyzed C-H activation.
( Adv.Synth.Catal. 2016, 358. 1-7)

Precious metal catalysts recovery and refining

For this service, please visit Precious Metal Catalysts Recovery and Refining. With our expertise and considerable experience in the manufacture of precious metal catalysts, Alfa Chemistry has full confidence in providing the best products and customer service.

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