Metal-organic framework-based nanomaterials for CO₂ storage: A review

Area of Science:

• Materials Science
• Environmental Science
• Chemical Engineering

Background:

• Rising global temperatures are linked to increased carbon dioxide (CO2) emissions, necessitating effective capture technologies.
• Carbon capture and storage (CCS) using adsorbents is a key strategy to mitigate CO2 emissions.
• Metal-organic frameworks (MOFs) are advanced porous materials with high surface areas and tunable properties, making them suitable for CO2 adsorption.

Purpose of the Study:

• To review recent advancements in metal-organic frameworks (MOFs) for carbon dioxide (CO2) capture.
• To discuss strategies for enhancing CO2 adsorption capabilities in MOFs.
• To outline current challenges and future prospects for MOF-based CO2 storage nanomaterials.

Main Methods:

• Review of literature on MOFs with diverse adsorption sites, including open metal sites and Lewis basic centers.
• Analysis of strategies for improving CO2 adsorption, such as pore size engineering, post-synthetic modification, and composite formation.
• Discussion of challenges and future directions in MOF-based nanomaterial development for CO2 storage.

Main Results:

• MOFs with specific adsorption sites (open metal sites, Lewis basic centers) demonstrate significant potential for CO2 uptake.
• Tailoring MOF properties through pore size manipulation, post-synthetic modifications, and composite formation enhances CO2 adsorption efficiency.
• MOF-based nanomaterials offer a promising avenue for efficient CO2 storage solutions.

Conclusions:

• Metal-organic frameworks are highly promising materials for effective carbon dioxide capture and storage.
• Strategic modifications of MOFs can significantly boost their CO2 adsorption capacity.
• Further research into MOF-based nanomaterials is crucial for advancing carbon capture technologies and addressing climate change.