2D Conductive Metal–Organic Frameworks: An Emerging Platform for Electrochemical Energy Storage

Abstract

Two‐dimensional conductive metal–organic frameworks (2D c‐MOFs) as an emerging class of multifunctional materials have attracted extensive attention due to their predictable and diverse structures, intrinsic permanent porosity, high charge mobility, and excellent electrical conductivity. Such unique characteristics render them as a promising new platform for electrical related devices. This Minireview highlights the recent key progress of 2D c‐MOFs with emphasis on the design strategies, unique electrical properties, and potential applications in electrochemical energy storage. The thorough elucidation of structure–function correlations may offer a guidance for the development of 2D c‐MOFs based next‐generation energy storage devices.

Coordination environment dependent selectivity of single-site-Cu enriched crystalline porous catalysts in CO2 reduction to CH4

“…The charge delocalization between metal ions and conjugated ligands endows conductive MOF with electrical conductivity as well as unique redox activity, making the conductive MOF promising platform for electrocatalysis and energy storage applications 29,30,35 . The conductivity of the prepared Cu-DBC was measured by the four-contact probe method.…”

“…Conductive metal-organic framework (cMOF) materials, a subclass of MOF constructed by self-assembling transition metal ions with conjugated organic ligands, are promising SSC candidates for selective ECR studies due to the unique redox and electrical conductivity as well as their MOF-based features including the unsaturated-coordinated metal sites and versatile porosity 29,30 . Additionally, the well-defined structure and excellent tunability of cMOF are also adequate for establishing an accurate structure-activity relationship for precise catalysis.…”

Carbon Dots Doped with Ni(OH)2 as Thin-Film Electrodes for Supercapacitors

“…Nowadays, the problem of energy exhaustion is becoming increasingly serious with the continuous development of human society, making the study on the diversity of energy supply more and more important. − Electrochemical energy storage systems, such as capacitance and battery, play an important role in energy storage and conversion. Compared with the traditional electric double-layer capacitors and rechargeable lithium-ion batteries, supercapacitor as a new type of battery energy storage device has higher energy density and power density and has the potential application in consumer electronics, solar power generation system, smart grid, new energy vehicles, industrial energy-saving system, and other fields. − …”

High Electrical Conductivity in Three-Dimensional Porphyrin-Phosphonate Metal Organic-Frameworks

“…21 MOFs with metal-binding groups that provide higher structural diversity are required to produce the next generation of electrode materials in supercapacitor applications, e.g., the use of supercapacitors to reduce the charging time in electrically powered vehicles. 22,23 In this connection, phosphonates are the most structurally diverse metal-binding groups with three oxygens available for metal-binding in various coordination modes as shown in Harris notation. A 3 [24][25][26][27] In addition, several phosphonate MOFs are known to exhibit exceptionally high thermal and chemical stabilities, which would be beneficial for their use in the presence of water, electrolytes, or even acids.…”