CAJ | 학술논문

采用微湿含浸法制备了一系列具有不同比表面积和孔径分布的超级电容器有序中孔炭材料.采用液氮吸附脱附等温线、小角XRD以及TEM表征了有序中孔炭的孔结构,在1 M Et_4NBF_4 IPC电解液中测试了其电化学性能.结果表明,所制得的有序中孔炭的BET比表面积随糠醇加入量的增加先增加后减小,糠醇加入量少制得具有CMK-5结构的有序中孔炭,加入量多制得的CMK-3结构.电化学性能测试结果表明,在1mA·cm~(-2)的充放电电流密度下各有序中孔炭材料比电容的大小顺序与其BET比表面积的大小顺序基本一致,具有CMK-3结构的有序中孔炭的倍率性能最好,并且也好于无序中孔炭的.
채용미습함침법제비료일계렬구유불동비표면적화공경분포적초급전용기유서중공탄재료.채용액담흡부탈부등온선、소각XRD이급TEM표정료유서중공탄적공결구,재1 M Et_4NBF_4 IPC전해액중측시료기전화학성능.결과표명,소제득적유서중공탄적BET비표면적수강순가입량적증가선증가후감소,강순가입량소제득구유CMK-5결구적유서중공탄,가입량다제득적CMK-3결구.전화학성능측시결과표명,재1mA·cm~(-2)적충방전전류밀도하각유서중공탄재료비전용적대소순서여기BET비표면적적대소순서기본일치,구유CMK-3결구적유서중공탄적배솔성능최호,병차야호우무서중공탄적.
A series of ordered mesoporous carbons used as electrode material for supercapacitor with dif-ferent surface area and pore size distribution were prepared by incipient wetness impregnation method. N_2 adsorption and desorption isotherms, small angel XRD and TEM were used to characterize the pore struc-ture of the ordered mesoporous carbons, and the electrochemical performances of the ordered mesoporous carbon materials were tested in 1 M Et_4NBF_4IPC electrolyte. The results show that the BET surface area of the ordered mesoporous carbons increase at first and decrease afterwards with the increase of the a-mount of the furfuryl alcohol added, and ordered mesoporous carbon with CMK -5 structure was prepared with less amount of the furfuryl alcohol added, whereas that with CMK - 3 structure was synthesized with more amount of the furfuryl alcohol added. The results of electrochemical characterization show that the magnitude order of the specific capacitance of the ordered mesoporous carbons is almost in good agree-ment with that of the BET surface area at the charge - discharge current density of 1 mA · cm~(-2) . The rate capability of the ordered mesoporous carbon with CMK - 3 structure is found to be the best, and it is also better than that of disordered mesoporous carbon.