Preparation of Biomass Carbon for CDI and Its Electrochemical Characterization

Abstract

To achieve an efficient CDI system with low energy consumption, a electrode with high capacitance and low resistance is required. Several kinds of electrode materials were prepared by using pine pollen and starch as bio-carbon sources. Together with commercial activated carbon material, their electrochemical properties were studied by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) in 1mol/L NaCl solution. The results show that the commercial activated carbon material has good electrochemical performances. Among the three activated carbon materials, it has the highest capacitance (8.63F/g) and the lowest resistance (6.35Ohm).