scholarly journals The Surge of Metal–Organic-Framework (MOFs)-Based Electrodes as Key Elements in Electrochemically Driven Processes for the Environment

Molecules ◽  
2021 ◽  
Vol 26 (18) ◽  
pp. 5713
Author(s):  
Abdoulaye Thiam ◽  
Juan A. Lopez-Ruiz ◽  
Dushyant Barpaga ◽  
Sergi Garcia-Segura
Keyword(s):  
Environmental Remediation ◽  
Electrode Materials ◽  
Metal Organic Framework ◽  
Water Remediation ◽  
Degradation Reactions ◽  
Metal Organic ◽  
Materials Used ◽  
Further Development ◽  
Main Electrode ◽  
Environmental Electrochemistry

Metal–organic-frameworks (MOFs) are emerging materials used in the environmental electrochemistry community for Faradaic and non-Faradaic water remediation technologies. It has been concluded that MOF-based materials show improvement in performance compared to traditional (non-)faradaic materials. In particular, this review outlines MOF synthesis and their application in the fields of electron- and photoelectron-Fenton degradation reactions, photoelectrocatalytic degradations, and capacitive deionization physical separations. This work overviews the main electrode materials used for the different environmental remediation processes, discusses the main performance enhancements achieved via the utilization of MOFs compared to traditional materials, and provides perspective and insights for the further development of the utilization of MOF-derived materials in electrified water treatment.

scholarly journals Simultaneously Regulating Uniform Zn2+ Flux and Electron Conduction by MOF/rGO Interlayers for High-Performance Zn Anodes

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Ziqi Wang ◽  
Liubing Dong ◽  
Weiyuan Huang ◽  
Hao Jia ◽  
Qinghe Zhao ◽  
...  
Keyword(s):  
High Performance ◽  
Surface Passivation ◽  
Coulombic Efficiency ◽  
Low Cost ◽  
Metal Organic Framework ◽  
Growth Surface ◽  
Electron Conduction ◽  
Reduced Graphene ◽  
Metal Organic ◽  
Further Development

AbstractOwing to the merits of low cost, high safety and environmental benignity, rechargeable aqueous Zn-based batteries (ZBs) have gained tremendous attention in recent years. Nevertheless, the poor reversibility of Zn anodes that originates from dendrite growth, surface passivation and corrosion, severely hinders the further development of ZBs. To tackle these issues, here we report a Janus separator based on a Zn-ion conductive metal–organic framework (MOF) and reduced graphene oxide (rGO), which is able to regulate uniform Zn2+ flux and electron conduction simultaneously during battery operation. Facilitated by the MOF/rGO bifunctional interlayers, the Zn anodes demonstrate stable plating/stripping behavior (over 500 h at 1 mA cm−2), high Coulombic efficiency (99.2% at 2 mA cm−2 after 100 cycles) and reduced redox barrier. Moreover, it is also found that the Zn corrosion can be effectively retarded through diminishing the potential discrepancy on Zn surface. Such a separator engineering also saliently promotes the overall performance of Zn|MnO2 full cells, which deliver nearly 100% capacity retention after 2000 cycles at 4 A g−1 and high power density over 10 kW kg−1. This work provides a feasible route to the high-performance Zn anodes for ZBs.

Metal–organic framework derived petal-like Co3O4@CoNi2S4 hybrid on carbon cloth with enhanced performance for supercapacitors

2020 ◽  
Vol 7 (6) ◽  
pp. 1428-1436 ◽  
Author(s):  
Dandan Han ◽  
Jinhe Wei ◽  
Yuan Zhao ◽  
Ye Shen ◽  
Yifan Pan ◽  
...  
Keyword(s):  
Electrode Materials ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Core Shell ◽  
Carbon Cloth ◽  
Step Method ◽  
Metal Organic ◽  
Organic Framework

Starting from 2D Co-based metal-organic frameworks, novel petal-like core-shell Co3O4@CoNi2S4 nanowall arrays are synthesized on carbon cloth using a facile two-step method and investigated as promising electrode materials for supercapacitors.

scholarly journals Porous carbon derived from metal–organic framework@graphene quantum dots as electrode materials for supercapacitors and lithium-ion batteries

RSC Advances ◽  
2019 ◽  
Vol 9 (17) ◽  
pp. 9577-9583 ◽  
Author(s):  
Hui Yu ◽  
Wenjian Zhu ◽  
Hu Zhou ◽  
Jianfeng Liu ◽  
Zhen Yang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Lithium Ion Batteries ◽  
Porous Carbon ◽  
Electrode Materials ◽  
Metal Organic Framework ◽  
Graphene Quantum Dots ◽  
Lithium Ion ◽  
Simple Method ◽  
Metal Organic ◽  
Organic Framework

The C@GQD composite was prepared by the combination of metal–organic framework (ZIF-8)-derived porous carbon and graphene quantum dots (GQDs) by a simple method.

scholarly journals Modification of Metal-Organic Framework-Derived Nanocarbons for Enhanced Capacitive Deionization Performance: A Mini-Review

2020 ◽  
Vol 8 ◽  
Author(s):  
Peng Lin ◽  
Maoxin Liao ◽  
Tao Yang ◽  
Xinran Sheng ◽  
Yue Wu ◽  
...  
Keyword(s):  
Large Scale ◽  
Carbon Nanomaterials ◽  
Electrode Materials ◽  
Low Cost ◽  
Metal Organic Framework ◽  
Morphology Control ◽  
Capacitive Deionization ◽  
Treatment Technology ◽  
Heteroatom Doping ◽  
Metal Organic

Capacitive deionization (CDI) is a promising electrochemical water treatment technology. Development of new electrode materials with higher performance is key to improve the desalination efficiency of CDI. Carbon nanomaterials derived from metal–organic frameworks (MOFs) have attracted wide attention for their porous nanostructures and large specific surface areas. The desalination capacity and cycling stability of MOF-derived carbons (MOFCs) have been greatly improved by means of morphology control, heteroatom doping, Faradaic material modification, etc. Despite progress has been made to improve their CDI performance, quite a lot of MOFCs are too costly to be applied in a large scale. It remains crucial to develop MOFCs with both high desalination efficiency and low cost. In this review, we summarized three modification methods of MOFCs, namely morphology control, heteroatom doping, and Faradaic material doping, and put forward some constructive advice on how to enhance the desalination performance of MOFCs effectively at a low cost. We hope that more efforts could be devoted to the industrialization of MOFCs for CDI.

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