材料工程2025，Vol.53Issue(4)：194-202,9.DOI:10.11868/j.issn.1001-4381.2023.000519
自模板构筑马尾藻基活性炭及其电化学性能
Self-templated construction of sargassum-based activated carbon and its electrochemical properties
摘要
Abstract
Orthogonal experiments have been carried out to study the optimal process conditions for the preparation of sargassum-based activated carbon with different impregnation ratios,impregnation times,activation temperatures,and activation times based on the self-templated"egg-box"structure using sargassum as the raw material and ZnCl2 as the activator.The characterization of N2 adsorption,SEM,and XRD investigate the pore structure properties,surface morphology,and crystal structure of the activated carbon.The electrochemical properties of sargassum-based activated carbon are tested.The optimum process conditions for preparing high specific capacitance activated carbon are analyzed by orthogonal experimental method and obtained as follows:impregnation ratio is 3,impregnation time is 2 h,activation temperature is 700 ℃,and activation time is 2 h.Under nine sets of experimental conditions,the prepared activated carbon SAC7 exhibits the best electrochemical performance,the specific capacitance of activated carbon SAC7 is as high as 136.4 F/g when the current density is 0.5 A/g,and its specific capacitance is as high as 92.0 F/g when the current density is 5 A/g,which shows a superior specific capacitance and rate performance.After 10000 cycles of charging and discharging,the SAC7 still has a capacitance retention rate as high as 99.41％,with excellent cycling stability.关键词
自模板构筑/活性炭/ZnCl2/电化学/超级电容器Key words
self-templated construction/activated carbon/ZnCl2/electrochemical/supercapacitor分类
通用工业技术引用本文复制引用
景鹏虎,李诗杰,谭霄鹏,李辉..自模板构筑马尾藻基活性炭及其电化学性能[J].材料工程,2025,53(4):194-202,9.基金项目
山东省自然科学基金项目(ZR2019PEE002) （ZR2019PEE002）
中国博士后科学基金项目(2020M671983) （2020M671983）
山东建筑大学博士科研基金项目(XNBS1838) （XNBS1838）
