Trends in Solid Adsorbent Materials Development for CO₂ Capture

Area of Science:

• Environmental Science
• Materials Science
• Chemical Engineering

Background:

• United Nations reports highlight excessive carbon dioxide (CO2) emissions, necessitating global temperature increase mitigation below 2 °C.
• Current CO2 capture technologies are insufficient to meet climate goals, demanding urgent development of effective mitigation strategies.

Purpose of the Study:

• To summarize recent trends in materials development for CO2 adsorption.
• To identify promising CO2 adsorbent materials by reviewing computational and experimental studies.

Main Methods:

• Categorization of adsorbent materials into four main groups: carbon-based materials, silica/alumina/zeolites, porous crystalline solids, and metal oxides.
• Review of recent experimental findings and computational investigations on CO2 adsorption materials.
• Analysis of material performance in the context of practical process economics and challenges.

Main Results:

• Identified key trends in the development of materials for CO2 adsorption across diverse categories.
• Highlighted promising candidate materials based on integrated computational and experimental data.
• Considered economic feasibility and practical challenges associated with material implementation.

Conclusions:

• Materials development for CO2 adsorption is a critical area for climate change mitigation.
• A combination of computational and experimental approaches is essential for discovering efficient and economical CO2 capture solutions.
• Further research is needed to address practical challenges and scale up promising CO2 adsorbent materials.