含锰活性炭电极的制备及其电化学性能研究

Mesoporous activated carbon is good supercapacitor electrode materials. Various activated carbons were prepared without additives and In the presence of Manganese nitrate-containing compounds from low-ash Anthracite Taxi-coal. And using nitrogen adsorption method to carry out its characterization of pore structure,then prepared into capacitor and carry out its determination of CV, charge and discharge current, impedance, and other electrochemical properties. The results showed that Manganese nitrate in activated carbon with greater porosity,larger surface area; the proper content of Manganese nitrate in activated carbon electrode have had a quasi-double-layer capacitors with the capacitance of synergy, which carry out greater power, higher capacity and lower impedance. Manganese nitrate additions have a greater impact on performance of electrochemical properties of activated carbon electrodes. Activated carbon electrode containing 3% Manganese capacitance can be significantly increased to 44.01F / g.