通过超快微波法制备的用于高性能超级电容器的镍钴金属有机框架纳米球

NiCo-MOF Nanospheres Created by the Ultra-Fast Microwave Method for Use in High-Performance Supercapacitors.

作者信息

Yang Xing, Zhang Xin, Yang Ning, Yang Lei, Wang Wanglong, Fang Xing, He Qing

机构信息

Key Laboratory of Air-Driven Equipment Technology of Zhejiang Province, Quzhou University, Quzhou 324000, China.

Department of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310058, China.

出版信息

Molecules. 2023 Jul 24;28(14):5613. doi: 10.3390/molecules28145613.

DOI:10.3390/molecules28145613

PMID:37513485

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10383059/

Abstract

Metal-organic frameworks-through the use of creative synthetic designs-could produce MOF materials with excellent porosity, stability, particle microstructures, and conductivity, and their inherent characteristics-including their porosity and controllable structure-may result in an immense number of prospects for energy storage. In this paper, a nanosphere-like NiCo-MOF was effectively manufactured via an ultra-fast microwave technique. Additionally, the ideal synthesis conditions of the NiCo-MOF were investigated by adjusting the microwave output power and microwave reaction time. Under the reaction conditions of a 600 W microwave and a 210 s microwave reaction time, the NiCo-MOF exhibited an excellent capacitance of 1348 F/g at a current density of 1 A/g and an 86.1% capacity retention rate at 10 A/g. In addition, self-assembled NiCo-MOF/AC asymmetric capacitors showed a splendid energy density of 46.6 Wh/kg and a power density of 8000 W/kg.

摘要

通过采用创新性的合成设计，金属有机框架能够制备出具有优异孔隙率、稳定性、颗粒微观结构和导电性的金属有机框架材料，并且其固有特性（包括孔隙率和可调控结构）可能为能量存储带来大量的应用前景。在本文中，通过超快速微波技术有效地制备出了纳米球状的镍钴金属有机框架。此外，通过调节微波输出功率和微波反应时间，研究了镍钴金属有机框架的理想合成条件。在600 W微波和210 s微波反应时间的反应条件下，镍钴金属有机框架在1 A/g的电流密度下表现出1348 F/g的优异电容，在10 A/g时容量保持率为86.1%。此外，自组装的镍钴金属有机框架/活性炭不对称电容器展现出46.6 Wh/kg的出色能量密度和8000 W/kg的功率密度。