Tailoring the Structure of Chitosan-Based Porous Carbon Nanofiber Architectures toward Efficient Capacitive Charge Storage and Capacitive Deionization
László Szabó, Xingtao Xu, Koichiro Uto, Joel Henzie, Yusuke Yamauchi, Izumi Ichinose, Mitsuhiro Ebara
Abstract
, which is among the state-of-the-art values reported for a biobased carbon. A high charge efficiency (85%) was achieved during the CDI process using low-cost materials, in contrast to similarly performing devices fabricated with expensive ion exchange membranes or petroleum-based carbon precursors. Our results demonstrate that inexpensive chitosan-based materials can be readily transformed in one carbonization step without any aggressive activating chemicals into tailor-made hierarchically ordered state-of-the-art carbon materials for charge storage devices.
Topics & Concepts
Materials scienceCapacitive deionizationChemical engineeringSupercapacitorFaraday efficiencyNanotechnologyGrapheneX-ray photoelectron spectroscopyElectrodeMesoporous materialSpecific surface areaCapacitanceElectrochemistryOrganic chemistryChemistryEngineeringCatalysisPhysical chemistrySupercapacitor Materials and FabricationMembrane-based Ion Separation TechniquesAdvanced battery technologies research