Carbonaceous electrode materials for supercapacitor: Preparation and surface functionalization

Supercapacitors became more and important recently in the area of energy storage conversion. Their large power deliveries abilities, high stability environmental friendliness characteristics draw tremendous attention high-power applications such as public transit networks. Carbonaceous materials with unique surface electrochemical properties were widely used supercapacitors electrode materials. This review focuses on developments supercapacitor electrodes made from carbonaceous recently, their working principle evaluation parameters summarized briefly. The preparation methods different compared classified. It was found that situation (e.g., porous structure, hydrophilic) strongly affect performances supercapacitor. So far, active carbons would be most applicable owing to good chemical conductivity, extensive accessibility inexpensiveness. But densities still fall behind practical demands. Both theoretical calculations experimental studies show modification doping can not only optimize pore size, conductivity properties, but also introduce extra pseudocapacitance into these Considering global pollution shortage problems nowadays, we sincerely suggested future work should focus domestic, medical industrial wastes residues derived scaled production process reactors exhaust gas treatment.