High micropore‐utilization carbon aerogel with controlled nanostructures via adjusting aggregation state of polyacrylonitrile for energy storage systems
Yuanyou Peng,
Yihan Fu,
Meimei Yu,
Lei Zhao,
Huanzhong Zeng,
Shengtao Niu,
Jie Zhang,
Junlong Chen,
Guang Liu,
Youzhi Wu,
Fen Ran
Affiliations
Yuanyou Peng
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
Yihan Fu
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
Meimei Yu
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
Lei Zhao
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
Huanzhong Zeng
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
Shengtao Niu
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
Jie Zhang
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
Junlong Chen
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
Guang Liu
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
Youzhi Wu
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
Fen Ran
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
Abstract Designing and optimizing the pore structure of porous carbon electrodes is essential for diverse energy storage systems. In this study, an innovative approach spray phase‐inversion strategy was developed for the rapid and efficient fabrication 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 process 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 advantages 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.
