Methanol steam reforming over Pd/ZnO: Catalyst preparation and pretreatment s…

Abstract. The preparation and the pretreatment of Pd/ZnO catalysts were studied for methanol steam reforming. The presence of nitric acid in Pd nitrate precursor significantly altered the porosities and crystalline structures of the ZnO support. The dissolution of ZnO and extent of mixing between the Zn2 + and Pd2 + cations during catalyst preparation may have an impact on the PdZn alloy fo…