Indium(III)-dicarboxylic microporous frameworks with high adsorption selectivity for CO2 over N2

Area of Science:

• Materials Science
• Chemistry

Background:

• Metal-organic frameworks (MOFs) are advanced porous materials with tunable properties.
• Developing MOFs for selective gas adsorption is crucial for environmental and industrial applications.

Purpose of the Study:

• To design and synthesize novel microporous metal-organic frameworks.
• To evaluate the gas adsorption properties and stability of the synthesized compounds.

Main Methods:

• Synthesis of two metal-organic frameworks: H2In3O(OH)3(1,3-bdc)3 (1) and HIn(1,4-bdc)2 (2).
• Characterization of the frameworks' structure and porosity.
• Assessment of gas adsorption selectivity (CO2 over N2) and material stability.

Main Results:

• Successful synthesis of two distinct microporous metal-organic frameworks.
• Compound 2 exhibited high adsorption selectivity for carbon dioxide (CO2) over nitrogen (N2).
• Compound 2 demonstrated significant material stability under tested conditions.

Conclusions:

• The designed metal-organic frameworks show potential for gas separation technologies.
• Compound 2 is a promising candidate for selective CO2 capture due to its high selectivity and stability.