Phosphorus and Oxygen Dual‐Doped Porous Carbon Spheres with Enhanced Reaction Kinetics as Anode Materials for High‐Performance Potassium‐Ion Hybrid Capacitors

• Published in: Advanced functional materials Vol. 31; no. 31
• Main Authors: Zhao, Shuoqing, Yan, Kang, Liang, Jiayu, Yuan, Qinghong, Zhang, Jinqiang, Sun, Bing, Munroe, Paul, Wang, Guoxiu
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc 01.08.2021
• Subjects: Activated carbon; anode materials; Anodes; Capacitors; Carbon; chemical vapor deposition; Control stability; Density functional theory; Electrochemical analysis; Electrode materials; Energy storage; Interlayers; Materials science; Oxygen; Phosphorus; porous microspheres; Potassium; potassium‐ion hybrid capacitors; Raman spectroscopy; Reaction kinetics; Structural stability

Hard carbons with low cost and high specific capacity hold great potential as anode materials for potassium‐based energy storage. However, their sluggish reaction kinetics and inevitable volume expansion degrade their electrochemical performance. Through rational nanostructure design and a heteroato...