Effect of Ce/Zr ratio in CeZr-CoRh catalysts on the hydrogen production by glycerol steam reforming

► Steam reforming of glycerol toward H2 production with mixed oxide catalysts CeZrCoRh. ► The higher production of H2 is favored with the increase of the ceria content. ► Higher ceria amount favors the re-oxidation capacity and the gasification ability. ► The increase of the ceria amount favors the activation of H2O. ► Higher ceria amount allows the carbon gasification and delays the deactivation.