石墨质多孔炭在不同电解液中的电化学性能研究

摘要

以中间相炭微球为原料,NaOH和FeCl3分别作为活化剂和催化剂,一步活化催化法制备了一种石墨质多孔炭.将该石墨质多孔炭作为超级电容器的电极材料,研究了其在1 M LiPF6/EC∶DEC(v/v=1∶1)、1 M Et4NBF4/PC(v/v=1∶1)和1M [BMIM]BF4/AN(v/v+1∶1)三种不同电解液中的电化学性能.研究表明,该石墨质多孔炭在三种电解液中均表现出优异的电化学行为,在电解液Et4NBF4/PC中性能最优,是一种理想的电容型材料.%A porous graphitic carbon (PGC) was prepared by the one-step activation and graphitization of mesocarbon microbeads using NaOH and FeCl3 as the activation reagent and graphitization catalyst,respectively.All supercapacitors constructed from the PGC using 1 M LiPF6/EC ∶DEC (v/v=1),1 M Et4NBF4/PC and 1 M [BMIM] BF4/AN as the electrolytes show good electrochemical properties,with the optimum electrolyte being Et4NBF4/PC.