Enhancing CO<sub>2</sub> Capture Via Fast Microwave-Assisted Synthesis of the CALF-20 Metal–Organic Framework
Metal-organic frameworks (MOFs) are promising porous materials for CO<sub>2</sub> adsorption due to their high surface area, tunable properties, and selective adsorption capabilities. The recently reported Calgary Framework 20 (CALF-20) MOF has very appealing CO<sub>2</sub> capture properties: high uptake capacity; low regeneration energy; durability (>450 000 cycles) under steam and wet acid gases; simple and scalable synthesis. This study investigates the microwave (MW)-assisted synthesis of CALF-20, which reduces reaction time 12-fold while enhancing the synthesis yield to 97%. Structural analysis confirmed that MW-synthesized CALF-20 retains its crystallographic structure and shows improved CO<sub>2</sub> capture performance, exhibiting higher adsorption capacity (∼20% higher), selectivity, and lower regeneration energy. This method provides a rapid and efficient alternative for producing the CALF-20 adsorbent for CO<sub>2</sub> capture and separation applications.
Authors
- Ricardo Vieira (ORCID: https://orcid.org/0000-0003-2500-9389)
- Luís Mafra (ORCID: https://orcid.org/0000-0003-1028-8354)
- D. Pereira (ORCID: https://orcid.org/0000-0001-7329-2516)
- Mariana Sardo (ORCID: https://orcid.org/0000-0003-3208-4387)
- Ildefonso Marín-Montesinos (ORCID: https://orcid.org/0000-0002-4206-2643)
Institutions
- University of Aveiro (PT)
Publication Details
- Journal
- Inorganic Chemistry
- Published
- 2025-02-07
- DOI
- https://doi.org/10.1021/acs.inorgchem.4c04727
- Citations
- 16
- Primary Topic
- Metal-Organic Frameworks: Synthesis and Applications
- Type
- article
- Field-Weighted Citation Impact
- 8.60
Funders
- European Commission
- Ministério da Ciência, Tecnologia e Ensino Superior
- Centro de Investigação em Materiais Cerâmicos e Compósitos
- European Research Council
- Fundação para a Ciência e a Tecnologia