Covalent Organic Frameworks for Electrocatalysis: Design, Applications, and Perspectives.

Area of Science:

• Materials Science
• Chemistry
• Nanotechnology

Background:

• Covalent organic frameworks (COFs) are crystalline porous polymers with tunable properties.
• Their characteristics, such as large surface area and stability, make them suitable for electrocatalysis.
• COFs are composed of light elements (C, N, O) linked by covalent bonds.

Purpose of the Study:

• To review design and synthesis strategies for COF-based electrocatalysts.
• To systematically overview recent advancements in COF applications for various electrocatalytic reactions.
• To discuss current challenges and future directions for COF electrocatalysts.

Main Methods:

• Heteroatom doping of COFs.
• Metalation of COFs and their building monomers.
• Encapsulation of active sites within COF pores.
• Development of COF-derived materials.

Main Results:

• COF-based electrocatalysts show significant progress in hydrogen evolution reaction (HER).
• COFs are effective in oxygen evolution reaction (OER), oxygen reduction reaction (ORR), and nitrogen reduction reaction (NRR).
• Applications extend to nitrate reduction reaction (NiRR) and carbon dioxide reduction reaction (CO2RR).

Conclusions:

• COF design and synthesis strategies are crucial for effective electrocatalysis.
• COF-based materials offer versatile platforms for diverse electrocatalytic applications.
• Further research is needed to address challenges and unlock the full potential of COFs in electrocatalysis.