Competitive Chemisorption between Pairs of Cinchona Alkaloids and Related Compounds from Solution onto Platinum Surfaces

摘要

The competitive adsorption of two or more compounds from solution onto solid surfaces defines many chemical issues in chemical separations,soil sciences,electrochemistry,aerosol chemistry,prosthetics,and other fields.In heterogeneous catalysis,it typically controls activity and selectivity.In the specific case of chiral modification of platinum-based hydrogenation catalysts by cinchona alkaloids,interesting nonlinear effects have been reported where mixtures of modifiers do not lead to a performance average of that of the individual components but rather to the dominance of one over the others.