文献类型：期刊文献

英文题名：Carbon nanofiber-induced interfacial electric field and phase engineering in V2O5/VO2 heterostructure for advanced zinc-ion batteries

作者：Liu, Zichuan[1];Ge, Huicheng[1];Luo, Yuancong[1];Shen, Yihui[1];Shi, Bo[1];Cui, Shicong[3];Cheng, Lingli[1];Li, Zhen[2];Jiao, Zheng[2]

机构：[1]Shanghai Univ, Sch Environm & Chem Engn, Shanghai 200444, Peoples R China;[2]Shanghai Univ, Shanghai Appl Radiat Inst, Shanghai 201800, Peoples R China;[3]East China Univ Sci & Technol, Dept Chem, Shanghai 200237, Peoples R China

年份：2026

卷号：750

外文期刊名：COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS

收录：;EI(收录号：20263421340792);Scopus(收录号：2-s2.0-105047808207);WOS:【SCI-EXPANDED(收录号:WOS:001856748700001)】；

基金：This research was funded by Tianjin Science and Technology Program Project (No. 24YFZCSN00100), the project of Digital Medical Research Institute, School of Medicine, Shanghai University (No. SHU-UM-JBGS-2025-11), the National Natural Science Foundation of China (No. 12275171 and 12304467). In addition, we also appreciate the High Performance Computing Center of Shanghai University, and Shanghai Engineering Research Center of Intelligent Computing System (No. 19DZ2252600) for supplying computational facilities and technical assistance.

语种：英文

外文关键词：Aqueous zinc-ion batteries; Carbon nanofibers; Phase transformation; Oxygen vacancies; Built-in electric field; Heterojunction

摘要：The development of high-performance cathodes for aqueous zinc-ion batteries (AZIBs) requires materials with high capacity, fast kinetics, and robust structural stability. Herein, we demonstrate that the simple introduction of carbon nanofibers (CNFs) plays a decisive multifunctional role in transforming a conventional vanadium oxide precursor into an advanced V2O5/VO2 heterostructured cathode. During the synthesis process, the CNFs act not only as a conductive scaffold but also as a mild reducing agent. This dual function in-situ triggers a partial phase transformation from V2O5 to VO2, creating abundant V2O5/VO2 heterojunctions while simultaneously generating oxygen vacancies. Furthermore, the significant Fermi levels difference between the resulting V2O5/VO2 heterostructure and the CNFs establishes a strong built-in electric field at their internal heterointerface. This synergistic integration of phase engineering, defect control, and interfacial electronic modulation dramatically enhances the material's intrinsic electronic conductivity, accelerates interfacial charge transfer, and strengthens Zn2 + adsorption and diffusion kinetics. Consequently, the V2O5/VO2-CNFs cathode delivers an exceptional reversible capacity of 465.3 mAh g-1 at 0.1 A g-1, outstanding rate capability (227.1 mAh g-1 at 10 A g-1), and remarkable long-term cycling stability with 172.7 mAh g-1 retained after 4000 cycles at 10 A g-1. This work highlights the profound and multifaceted impact of the carbon substrate, offering a new paradigm for designing advanced heterostructured electrodes through substrate-mediated engineering.