Preparation of MnO2 and Composites for Ultracapacitors

New dispersants were investigated for the preparation of MnO2 and composites by electrophoretic deposition (ED). The investigation of molecules from salicylate, phenolate, catecholate, and phthalate families allowed the comparison of different mechanisms, which provided dispersant bonding to the MnO2. The deposition yield was studied at various experimental conditions. Catecholate bonding resulted in significantly higher colloidal stability and …