Chains prime ratio

Prime Ratio. Ratios in excess of 7 1 are generally not recommended for roller chains. If greater speed reduction is required, it is desirable and usually more economical to compound two or more drives. 

The huge content of noble metal in LaRhOs explains the limited number of works. However, the use of rhodium has an interest from an academic point of view. In the opposite, cobalt or copper content in LaCoi- Cu Os is relatively low compared to the metal content used in the IFP process. This could have a negative influence on the productivity of the perovskites catalysts. Nevertheless, selectivity and carbon growing chain linked to the Co/Cu ratio and to the interactions between the two metals are of prime importance. These two factors can be well mastered when starting with LaCoi- Cu Os perovskites as metal precursors. 

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