CAJ | 학술논문

以废弃物黄豆渣为原料，采用KOH化学活化方法制备了氮掺杂的高比表面积多孔炭材料。通过N2吸附-脱附、SEM、T EM和XPS等方法表征了黄豆渣基炭材料的孔道结构和表面性质。以此炭材料为电极材料，分别以1mol · L -1 H2 SO4和6mol · L -1 KOH为电解液组装成超级电容器，利用循环伏安、恒流充放电和交流阻抗等电化学测试方法研究其电化学电容性能并详细阐释了其电容形成机制。结果表明，通过调节活化剂KO H与原料的质量比，可以得到不同比表面积和氮掺杂含量的炭材料，活化后的炭材料在1mol · L -1 H2 SO4和6mol · L -1 KO H电解液中的电容值分别达到了410 F · g -1和425 F · g -1，且在氢氧化钾电解液中10A · g -1的大电流密度下，电容值仍能保持275 F · g -1以上。
이폐기물황두사위원료，채용KOH화학활화방법제비료담참잡적고비표면적다공탄재료。통과N2흡부-탈부、SEM、T EM화XPS등방법표정료황두사기탄재료적공도결구화표면성질。이차탄재료위전겁재료，분별이1mol · L -1 H2 SO4화6mol · L -1 KOH위전해액조장성초급전용기，이용순배복안、항류충방전화교류조항등전화학측시방법연구기전화학전용성능병상세천석료기전용형성궤제。결과표명，통과조절활화제KO H여원료적질량비，가이득도불동비표면적화담참잡함량적탄재료，활화후적탄재료재1mol · L -1 H2 SO4화6mol · L -1 KO H전해액중적전용치분별체도료410 F · g -1화425 F · g -1，차재경양화갑전해액중10A · g -1적대전류밀도하，전용치잉능보지275 F · g -1이상。
Nitrogen-doped porous carbons with high specific surface areas have been obtained from waste soya bean dreg by the carbonization with KOH .The pore structure and surface mor-phology of the carbon samples were characterized by N2 adsorption-desorption ,SEM ,TEM and XPS measurements .As the supercapacitor electrode material ,the electrochemical properties were investigated by galvanostatic charge/discharge ,cyclic voltammetry and impendance spectrum in 1mol · L -1 H2SO4 and 6mol · L -1 KOH electrolytes ,respectively .The results showed that the specific surface area and nitrogen content of the carbons can be controlled by adjusting the mass of the KOH ,and the maximum specific capacitances of carbons measured in 1mol · L -1 H2SO4 and 6mol · L -1 KOH electrolytes are 410 F · g -1 and 425 F · g -1 ,respectively .Furthermore ,a high specific capacitance (275 F · g -1 ) was obtained even under 10 A · g -1 when measured in 6 mol · L -1 KOH electrolyte .