黑龙江科技大学学报2026，Vol.36Issue(3)：398-405,8.DOI:10.3969/j.issn.2095-7262.2026.03.010
超临界相态下制备煤焦油基多孔碳及其电化学性能
Influence of solvothermal temperature on structure and electrochemical performance of coal tar-based porous carbon
摘要
Abstract
This paper is aimed at investigating the effect of solvent heat temperature on the formation structure and electrochemical properties of porous carbon by taking high-temperature coal tar as the raw material,preparing carbonaceous mesophases with the solvent heat method,and preparing the porous car-bon materials with the potassium hydroxide activation method.The study involves determining the carbo-naceous mesophases,and the thermal stability,structure and the morphology of porous carbon by using SEM,TG,FT-IR,XRD,and nitrogen adsorption-desorption characterization techniques;analyzing the im-pact of solvent heat temperature on microstructural alterations during the formation of porous carbon;and researching the regulation law of the porous carbon structure on electrochemical characteristics.The re-sults show that the graphitized carbon-like materials with well-developed mesoporous structures and abun-dant oxygen-containing groups can be obtained at a solvent heat temperature of 240℃.Due to its unique structure,the porous carbon exhibits better electrochemical performance with a mass-specific capacitance of up to 275 F/g at a current density of 0.3 A/g,and at a current density of 5 A/g,the capacitance re-tention can reach 98%after 2 000 cycles.This study reveals a theoretical and practical basis for the syn-thesis of porous carbon based on coal tar with favorable electrochemical characteristics.关键词
多孔碳/煤焦油/超临界相态/电化学性能/固相炭Key words
porous carbon/coal tar/supercritical phase/electrochemical properties/solid carbon分类
化学化工引用本文复制引用
吴鹏,窦强,薛媛萌,徐鑫圆,吕玉庭..超临界相态下制备煤焦油基多孔碳及其电化学性能[J].黑龙江科技大学学报,2026,36(3):398-405,8.基金项目
黑龙江省自然科学基金项目(LH2023E124) （LH2023E124）
