Preparation of Flower-like Nickel-Based Bimetallic Organic Framework Electrodes for High-Efficiency Hybrid Supercapacitors

Metal organic frameworks (MOFs) have been rapidly developed in the application of electrode materials due to their controllable morphology and ultra-high porosity. In this research, flower-like layered nickel-based bimetallic MOFs microspheres with different metal central ions were synthesized by so...

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Autores principales:	Di Jiang, Chuanying Wei, Ziyang Zhu, Xiaohui Xu, Min Lu, Guangsheng Wang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	metal organic frameworks nickel supercapacitor Crystallography QD901-999
Acceso en línea:	https://doaj.org/article/473da3d6ee324375958961ce1d5dfab2
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spelling	oai:doaj.org-article:473da3d6ee324375958961ce1d5dfab22021-11-25T17:19:40ZPreparation of Flower-like Nickel-Based Bimetallic Organic Framework Electrodes for High-Efficiency Hybrid Supercapacitors10.3390/cryst111114252073-4352https://doaj.org/article/473da3d6ee324375958961ce1d5dfab22021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4352/11/11/1425https://doaj.org/toc/2073-4352Metal organic frameworks (MOFs) have been rapidly developed in the application of electrode materials due to their controllable morphology and ultra-high porosity. In this research, flower-like layered nickel-based bimetallic MOFs microspheres with different metal central ions were synthesized by solvothermal method. Compared with Ni-MOFs, the optimization of the specific capacitance of NiCo-MOFs and NiMn-MOFs was been confirmed. For example, the specific capacitance of NiCo-MOFs can reach 882 F·g<sup>−1</sup> at 0.5 A·g<sup>−1</sup> while maintaining satisfactory cycle life (the specific capacity remains 90.1% of the initial value after 3000 charge-discharge cycles at 5 A·g<sup>−1</sup>). In addition, the NiCo-MOFs//AC HSCs, which are composed of NiCo-MOFs and activated carbon (AC), achieved a maximum energy density of 18.33 Wh·kg<sup>−1</sup> at a power density of 400 W·kg<sup>−1</sup>, and showed satisfactory cycle life (82.4% after 3000 cycles). These outstanding electrochemical properties can be ascribed to the synergistic effect between metal ions, the optimized conductivity, and the unique layered stacked flower structure, which provides a smooth transmission channel for electrons/ions. In addition, this research gives a general method for the application of MOFs in the field of supercapacitors.Di JiangChuanying WeiZiyang ZhuXiaohui XuMin LuGuangsheng WangMDPI AGarticlemetal organic frameworksnickelsupercapacitorCrystallographyQD901-999ENCrystals, Vol 11, Iss 1425, p 1425 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	metal organic frameworks nickel supercapacitor Crystallography QD901-999
spellingShingle	metal organic frameworks nickel supercapacitor Crystallography QD901-999 Di Jiang Chuanying Wei Ziyang Zhu Xiaohui Xu Min Lu Guangsheng Wang Preparation of Flower-like Nickel-Based Bimetallic Organic Framework Electrodes for High-Efficiency Hybrid Supercapacitors
description	Metal organic frameworks (MOFs) have been rapidly developed in the application of electrode materials due to their controllable morphology and ultra-high porosity. In this research, flower-like layered nickel-based bimetallic MOFs microspheres with different metal central ions were synthesized by solvothermal method. Compared with Ni-MOFs, the optimization of the specific capacitance of NiCo-MOFs and NiMn-MOFs was been confirmed. For example, the specific capacitance of NiCo-MOFs can reach 882 F·g<sup>−1</sup> at 0.5 A·g<sup>−1</sup> while maintaining satisfactory cycle life (the specific capacity remains 90.1% of the initial value after 3000 charge-discharge cycles at 5 A·g<sup>−1</sup>). In addition, the NiCo-MOFs//AC HSCs, which are composed of NiCo-MOFs and activated carbon (AC), achieved a maximum energy density of 18.33 Wh·kg<sup>−1</sup> at a power density of 400 W·kg<sup>−1</sup>, and showed satisfactory cycle life (82.4% after 3000 cycles). These outstanding electrochemical properties can be ascribed to the synergistic effect between metal ions, the optimized conductivity, and the unique layered stacked flower structure, which provides a smooth transmission channel for electrons/ions. In addition, this research gives a general method for the application of MOFs in the field of supercapacitors.
format	article
author	Di Jiang Chuanying Wei Ziyang Zhu Xiaohui Xu Min Lu Guangsheng Wang
author_facet	Di Jiang Chuanying Wei Ziyang Zhu Xiaohui Xu Min Lu Guangsheng Wang
author_sort	Di Jiang
title	Preparation of Flower-like Nickel-Based Bimetallic Organic Framework Electrodes for High-Efficiency Hybrid Supercapacitors
title_short	Preparation of Flower-like Nickel-Based Bimetallic Organic Framework Electrodes for High-Efficiency Hybrid Supercapacitors
title_full	Preparation of Flower-like Nickel-Based Bimetallic Organic Framework Electrodes for High-Efficiency Hybrid Supercapacitors
title_fullStr	Preparation of Flower-like Nickel-Based Bimetallic Organic Framework Electrodes for High-Efficiency Hybrid Supercapacitors
title_full_unstemmed	Preparation of Flower-like Nickel-Based Bimetallic Organic Framework Electrodes for High-Efficiency Hybrid Supercapacitors
title_sort	preparation of flower-like nickel-based bimetallic organic framework electrodes for high-efficiency hybrid supercapacitors
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/473da3d6ee324375958961ce1d5dfab2
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_version_	1718412468002226176

Preparation of Flower-like Nickel-Based Bimetallic Organic Framework Electrodes for High-Efficiency Hybrid Supercapacitors

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