Low-Cost and Nature-Friendly Hierarchical Porous Carbon for Enhanced Capacitive Electrochemical Energy Storage
Dawei Chu, Ardo Nashalian, Yihao Zhou, Xun Zhao, Dongxuan Guo, Ranran He, Wei‐Wen Chen, Jun Chen
Abstract
In this work, for the first time, we managed to derive the hierarchical porous carbon (HPC) at a large scale from the carbonization of franchet groundcherry fruit peels. With the interconnected porous characteristics and high specific surface area, the environmentally friendly HPC demonstrates a favorable specific capacity of 335 F/g. Moreover, the HPC-based symmetrical device demonstrates a superior energy density of 22.3 Wh/kg. This study not only paves an economical and practical way to recycle the franchet groundcherry fruit peels, but also develops an eco-friendly approach to obtain hierarchical porous carbon for enhanced capacitive electrochemical energy storage.