Catalysis-open-access-journals publish original, rigorous, and scholarly contributions in the fields of heterogeneous catalysis and homogeneous catalysis. These include studies that relate catalytic function to fundamental chemical procedures at surfaces and in metallic complexes, new concepts in surface chemistry, the synthesis and catalytic function of innovative inorganic solids and complexes, spectroscopic procedures for structural characterization and theoretical methods of direct interest and impact in the science and applications of catalysts and catalytic processes. The scope comprises heterogeneous catalysis, homogeneous catalysis, bio-catalysis, synthesis and properties of novel catalysts as well as synthesis and catalytic role of novel inorganic solids and complexes, studies that relate catalytic function to fundamental chemical processes in metal complexes and at surfaces, novel concepts in surface chemistry, preparation, activation, aging, rejuvenation, regeneration of commercially interesting model catalysts, techniques, and adsorption.