Chemically modified ordered mesoporous carbon CMK-3 materials were prepared by means of an easy wet-oxidative method in 2 mol/L nitric acid aqueous solution. A large amount of oxygen-containing functional groups were ...Chemically modified ordered mesoporous carbon CMK-3 materials were prepared by means of an easy wet-oxidative method in 2 mol/L nitric acid aqueous solution. A large amount of oxygen-containing functional groups were introduced onto the CMK-3 surface. Modified CMK-3（m-CMK-3） and aniline monomer were polymerized via an in situ chemical oxidative polymerization method. Morphological characterizations of m-CMK-3/PANI （polyaniline） composites were carried out via field emission scanning electron microscopy（SEM）. Their electrochemical properties were investigated with cyclic voltammetry, galvanostatic charge-discharge, and electrochemical impedance spectroscopy. The m-CMK-3/PANI composites have excellent properties in capacitance, and the highest specific capacitance（SC） value was up to 489 F/g, suggesting their potential application in the electrode material for electrochemical capacitors.展开更多
基金Supported by the National Basic Research Program of China(No.2007CB216408)the National Natural Science Foundation of China(No.50602020)+1 种基金the Program for Outstanding Young Teachers in Lanzhou University of Technology China (No.Q200803)
文摘Chemically modified ordered mesoporous carbon CMK-3 materials were prepared by means of an easy wet-oxidative method in 2 mol/L nitric acid aqueous solution. A large amount of oxygen-containing functional groups were introduced onto the CMK-3 surface. Modified CMK-3（m-CMK-3） and aniline monomer were polymerized via an in situ chemical oxidative polymerization method. Morphological characterizations of m-CMK-3/PANI （polyaniline） composites were carried out via field emission scanning electron microscopy（SEM）. Their electrochemical properties were investigated with cyclic voltammetry, galvanostatic charge-discharge, and electrochemical impedance spectroscopy. The m-CMK-3/PANI composites have excellent properties in capacitance, and the highest specific capacitance（SC） value was up to 489 F/g, suggesting their potential application in the electrode material for electrochemical capacitors.
