Papers by Author: Richard Higgins

Abstract: Electrophoretic deposition was investigated as a procedure for preparing supported membranes of zeolite 5A for use in gas separations. In particular, the addition of polyethylene imine (PEI) to the non-aqueous bath was explored as means of improving gas separation selectivity, deposit morphology, and adhesion. It was found that the addition of PEI improved all of these qualities. Post-deposition treatments such as baking and coating with polystyrene were also studied.