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.
Angew Chem Int Ed Engl. 2017 Jan 19;56(4):1105-1110. doi: 10.1002/anie.201609527. Epub 2016 Dec 21.
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-Fe O /polypyrrole (PPy) nanoarrays (T-Fe O /PPy NAs). The 3D, and interconnected T-Fe O /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-Fe O /PPy NAs exhibits a high areal capacitance of 382.4 mF cm at a current density of 0.5 mA cm and excellent reversibility. The solid-state asymmetric supercapacitor consisting of T-Fe O /PPy NAs and MnO electrodes achieves a high energy density of 0.22 mWh cm at a power density of 165.6 mW cm .
本文通过简便的自牺牲模板法和温和条件下的原位气相聚合路线，成功地在导电碳布上制备出具有 3D 互穿结构的类荷叶状α-Fe2O3/聚吡咯（PPy）纳米阵列（T-Fe2O3/PPy NAs）。所制备的 T-Fe2O3/PPy NAs 电极在 0.5 mA cm 的电流密度下具有 382.4 mF cm 的高比面积电容，且具有良好的可逆性。由 T-Fe2O3/PPy NAs 和 MnO 电极组成的固态非对称超级电容器在 165.6 mW cm 的功率密度下实现了 0.22 mWh cm 的高能量密度。
Zotero 插件