1. Analyzing the Selectivity of Commercial Cation Exchange Membrane by Electrodeposition of Polyethyleneimine (PEI) Open Access Author: Fisher, Matthew Title: Analyzing the Selectivity of Commercial Cation Exchange Membrane by Electrodeposition of Polyethyleneimine (PEI) Area of Honors: Chemical Engineering Keywords: PolyethyleneimineTrivalent IonsRare Earth ElementsPermselectivityIon Exchange MembranesCationsPotentiostatPhosphogypsumCerium ChlorideElectrodepositionWastewater File: Download Matthew_Fisher_Final_Thesis.pdf Thesis Supervisors: Bruce Logan, Thesis SupervisorAli Borhan, Thesis Honors Advisor