生物质多孔炭吸附双染料分子增强电化学性能  

Biomass porous carbon adsorbs double dye molecules to enhance electrochemical performance

作　　者：马记 徐惠[1] 包源海 左莎莎 康凯月 MA Ji;XU Hui;BAO Yuan-hai;ZUO Sha-sha;KANG Kai-yue(School of Petrochemical Engineering,Lanzhou University of Technology,Lanzhou 730050,China)

机构地区：[1]兰州理工大学石油化工学院,甘肃兰州730050

出　　处：《兰州理工大学学报》2025年第2期65-70,共6页Journal of Lanzhou University of Technology

基　　金：国家自然科学基金(52163025,51503092)。

摘　　要：利用银杏叶衍生多孔炭(KGL)同时吸附偶氮类胭脂红(AR)和蒽醌类茜素红(ARS),活性染料分子与多孔炭材料结合发挥出良好的氧化还原活性,与吸附单一染料相比,吸附双染料分子的炭材料具有更多的氧化还原活性位点,两种染料分子能够同时表现出赝电容特性,在1 A·g^(-1)电流密度下,优化后的复合电极材料(KGL/AR-ARS-5)的比电容为811.3 F·g^(-1).以KGL为负极,KGL/AR-ARS-5为正极组装的非对称电容器在功率密度为700 W·kg^(-1)时,能量密度可以达到15.4 Wh·kg^(-1).Ginkgo leaf-derived porous carbon(KGL)was used to simultaneously adsorb azo dye carmine(AR)and anthraquinone dye alizarin red S(ARS).The combination of active dye molecules and porous carbon materials exerted good redox activity.Compared with the adsorption of a single dye,the carbon material adsorbed with double dye molecules has more redox active sites,with both dye molecules simultaneously exhibiting pseudocapacitance characteristics.At a current density of 1 A·g^(-1),the optimized composite electrode material(KGL/AR-ARS-5)exhibits a specific capacitance of 811.3 F·g^(-1).The energy density of asymmetric capacitor assembled with KGL as negative electrode and KGL/AR-ARS-5 as positive electrode can reach 15.4 Wh·kg^(-1)at power density of 700 W·kg^(-1).

关 键 词：生物质多孔炭 茜素红 胭脂红 电吸附 比电容 

分 类 号：O69[理学—化学]