SEARCH Articles Figures Tables Catalysts heterogeneity Catalysts heterogeneous Catalysts heterogenous Catalysts preparation Heterogeneous catalysts supported metal particle preparation Heterogeneous preparation Heterogenized catalysts Preparation advances homogeneous, heterogeneous catalysts Preparation of Heterogeneous Catalysts for Chemo- and Enantioselective Hydrogenation Reactions Preparation of heterogeneous catalysts Preparation of the heterogeneous catalyst nickel-on-charcoal