Catalysts predous metal

As for hydrogenations, predous metal catalysts have dominated the study of catalytic hydrosilylations, with Rh and Pt catalysts being prevalent in catalytic hydrosilylations. Compared to hydrogenations, however, there are more examples of cheap metals that catalyze the hydrosilylation reaction. In addition to the tungsten catalysts discussed above, several examples of iron catalysts for hydrosilylation are discussed in Chapter 4. Examples of catalytic hydrosilylations with Mn, Ti and Cu catalysts are briefly mentioned below. 

F. Jaouen, E. Proietti, M. Lefevre, R. Chenitz, J.-P. Dodelet, G. Wu, et al.. Recent advances in non-predous metal catalysis for oxygen-reduction reaction in polymer electrolyte fuel cells. Energy Environ. Sd. 4 (2011) 114-130. R. Jasinski, A new fuel cell cathode catalyst. Nature 201 (1964) 1212-1213. 

Metal oxides, sulfides, and hydrides form a transition between add-base and metal catalysts. They catalyze hydro nation-dehydrogenation as well as many of the reactions catalyzed by adds such as cracking and isomerization. Their oxidation activity is related to the possibility of two valence states which allow oxygen to be released and reabsorbed alternately. Common examples are oxides of cobalt, iron, zinc, and chromium and hydrides of predous... 

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