纳微快报（英文）2021，Vol.13Issue(1)：319-336,18.
Ternary MOF-Based Redox Active Sites Enabled 3D-on-2D Nanoarchitectured Battery-Type Electrodes for High-Energy-Density Supercapatteries
Ternary MOF?Based Redox Active Sites Enabled 3D?on?2D Nanoarchitectured Battery?Type Electrodes for High?Energy?Density Supercapatteries
摘要
Abstract
Designing rationally combined metal-organic frameworks (MOFs) with multifunctional nanogeometries is of significant research interest to enable the electrochemical properties in advanced energy storage devices. Herein, we explored a new class of binderfree dual-layered Ni-Co-Mn-based MOFs (NCM-based MOFs) with three-dimensional (3D)-on-2D nanoarchitectures through a polarityinduced solution-phase method for high-performance supercapatteries. The hierarchical NCM-based MOFs having grown on nickel foam exhibit a battery-type charge storage mechanism with superior areal capacity (1311.4 μAh cm- 2 at 5 mA cm-2), good rate capability (61.8％; 811.67 μAh cm- 2 at 50 mA cm-2), and an excellent cycling durability. The superior charge storage properties are ascribed to the synergistic features, higher accessible active sites of dual-layered nanogeometries, and exalted redox chemistry of multi metallic guest species, respectively. The bilayered NCM-based MOFs are further employed as a battery-type electrode for the fabrication of supercapattery paradigm with biomass-derived nitrogen/oxygen doped porous carbon as a negative electrode, which demonstrates excellent capacity of 1.6 mAh cm- 2 along with high energy and power densities of 1.21 mWh cm- 2 and 32.49 mW cm- 2, respectively. Following, the MOF-based supercapattery was further assembled with a renewable solar power harvester to use as a self-charging station for various portable electronic applications.关键词
Metal-organic frameworks/Dual layers/Redox chemistry/Supercapattery/Renewable energyKey words
Metal-organic frameworks/Dual layers/Redox chemistry/Supercapattery/Renewable energy引用本文复制引用
Goli Nagaraju,S. Chandra Sekhar,Bhimanaboina Ramulu,Sk. Khaja Hussain,D. Narsimulu,Jae Su Yu..Ternary MOF-Based Redox Active Sites Enabled 3D-on-2D Nanoarchitectured Battery-Type Electrodes for High-Energy-Density Supercapatteries[J].纳微快报（英文）,2021,13(1):319-336,18.基金项目
This work was supported by the National Research Foundation of Korea(NRF)grant funded by the Korean government(MSIP)(No.2017R1A2B4011998 and No.2018R1A6A1A03025708). （NRF）
