title: Constructing Hierarchical Tectorum-like α-Fe2O3/PPy Nanoarrays on Carbon Cloth for Solid-State Asymmetric Supercapacitors.
abstract: The design of complex heterostructured electrode materials that deliver superior electrochemical performances to their individual counterparts has stimulated intensive research on configuring supercapacitors with high energy and power densities. Herein we fabricate hierarchical tectorum-like α-Fe2O3/polypyrrole (PPy) nanoarrays (T-Fe2O3/PPy NAs). The 3D, and interconnected T-Fe2O3/PPy NAs are successfully grown on conductive carbon cloth through an easy self-sacrificing template and in situ vapor-phase polymerization route under mild conditions. The electrode made of the T-Fe2O3/PPy NAs exhibits a high areal capacitance of 382.4 mF cm-2at a current density of 0.5 mA cm-2and excellent reversibility. The solid-state asymmetric supercapacitor consisting of T-Fe2O3/PPy NAs and MnO2electrodes achieves a high energy density of 0.22 mWh cm-3at a power density of 165.6 mW cm-3.
authors.affiliation: State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P.R. China.
authors.forename: Libin
authors.initials: L
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P.R. China.
authors.forename: Huiling
authors.initials: H
authors.lastname: Yang
authors.affiliation: State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P.R. China.
authors.forename: Xiaoxiao
authors.initials: X
authors.lastname: Liu
authors.affiliation: State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P.R. China.
authors.forename: Rui
authors.initials: R
authors.lastname: Zeng
authors.affiliation: State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P.R. China.
authors.forename: Ming
authors.initials: M
authors.lastname: Li
authors.affiliation: State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P.R. China.
authors.forename: Yunhui
authors.initials: Y
authors.lastname: Huang
authors.affiliation: State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P.R. China.
authors.forename: Xianluo
authors.identifier: 0000-0002-5769-167X
authors.initials: X
authors.lastname: Hu
keywords: energy storage; hierarchical nanostructures; iron; nanoarrays; supercapacitors