High micropore-utilization carbon aerogel with controlled nanostructures via adjusting aggregation state of polyacrylonitrile for energy storage systems  

作　　者：Yuanyou Peng Yihan Fu Meimei Yu Lei Zhao Huanzhong Zeng Shengtao Niu Jie Zhang Junlong Chen Guang Liu Youzhi Wu Fen Ran 

机构地区：[1]State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals,Department of Polymeric Materials Engineering,School of Material Science and Engineering,Lanzhou University of Technology,Lanzhou,China

出　　处：《SusMat》2024年第4期27-38,共12页可持续发展材料（英文）

基　　金：National Natural Science Foundation of China,Grant/Award Numbers:51763014,52073133;Shenyang National Laboratory for Materials Science;State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals,Grant/Award Number:18LHPY002;Hongliu Distinguished Young Scholars in Lanzhou University of Technology;Department of Science and Technology of Gansu,Grant/Award Number:23JRRA805。

摘　　要：Designing and optimizing the pore structure of porous carbon electrodes is essen-tial for diverse energy storage systems.In this study,an innovative approach spray phase-inversion strategy was developed for the rapid and efficient fabri-cation of controlled porous carbon aerogel.Moreover,the aggregation structure of polyacrylonitrile is controlled by adjusting the Hansen’s solubility parameter,thereby regulating the electrode material structure.Furthermore,the theoretical analysis of the spray phase-inversion process revealed that this regulation pro-cess is jointly regulated by solvent hydrodynamic diameter and phase-inversion kinetics.Through optimization,a novel porous carbon material was obtained that exhibited excellent performance as an electrode material.When utilized in supercapacitors for energy storage,it demonstrated a high specific capacitance of 373.1 F g^(-1) in a 6 M KOH electrolyte solution.Simultaneously,it has been observed that the preparation strategy for porous electrodes offers notable advan-tages in terms of excellent designability,broad universality,simplicity,and high efficiency,thereby holding promise for large-scale fabrication of diverse porous electrode materials and various types of electrodes for diverse energy storage applications.

关 键 词：aggregation structure electrode materials phase inversion porous carbon SUPERCAPACITORS 

分 类 号：O64[理学—物理化学]