应用化学2025，Vol.42Issue(7)：945-954,10.DOI:10.19894/j.issn.1000-0518.240330
火炬树叶衍生多孔碳材料的制备及其电化学性能
Preparation of Porous Carbon Materials Derived from Rhus typhina Leaves and Their Electrochemical Properties
摘要
Abstract
Porous carbon materials with different mass ratios were successfully prepared from Rhus typhina leaves as carbon source and K2CO3 as activating agent via a two-step"carbonization-activation"method,and denoted as TLPC-x(x=0,1,2,3,4,where x represents the mass ratio of activator to carbon source).The morphology and structure of the as-prepared materials were characterized by scanning electron microscopy(SEM),transmission electron microscopy(TEM),X-ray diffraction(XRD),Raman spectroscopy,X-ray photoelectron spectroscopy(XPS),and Brunauer-Emmett-Teller(BET)surface area analysis.Electrochemical performances were evaluated through cyclic voltammetry(CV),galvanostatic charge-discharge(GCD)tests,and other electrochemical measurements.The results suggest that K2CO3 exhibits an excellent pore-forming property.TLPC-3 displays the most well-developed pore structure with a high specific surface area of up to 2193.9 m2/g.In a three-electrode system,TLPC-3 delivers a specific capacitance of 287.8 F/g at a current density of 0.5 A/g,which is 3.2 times higher than that of TLPC-0.In a two-electrode system,the material delivers an energy density of 8.05 Wh/kg at a power density of 125 W/kg.Moreover,even after 10000 GCD cycles at a current density of 10 A/g,it retains 98.7％ of its initial capacitance.关键词
火炬树叶/多孔碳/K2CO3活化/超级电容器Key words
Rhus typhina leaves/Porous carbon/K2CO3 activation/Supercapacitors分类
化学化工引用本文复制引用
郑立辉,杜博澳..火炬树叶衍生多孔碳材料的制备及其电化学性能[J].应用化学,2025,42(7):945-954,10.基金项目
河北省自然科学基金项目(No.B2024107002)资助 Supported by the Natural Science Foundation of Hebei Province Project(No.B2024107002) （No.B2024107002）
