Presentation Title

A new heterometallic indium-cobalt metal-organic framework constructed with a -1/-3 mixed-ligand strategy

Faculty Mentor

Xianhui Bu

Start Date

18-11-2017 9:59 AM

End Date

18-11-2017 11:00 AM

Location

BSC-Ursa Minor 138

Session

Poster 1

Type of Presentation

Poster

Subject Area

physical_mathematical_sciences

Abstract

Metal-organic frameworks (MOFs) are a class of crystalline porous materials, which can be utilized to adsorb and separate gaseous species. For improved gas sorption and separation performance, MOFs with appropriate pore size and high density of strong binding sites are desired. Pore space partition has been demonstrated to be a powerful strategy for pore space engineering, which can facilitate the sorption of small gas molecules such as CO2. Especially, pore space partition by entrapment of metal clusters can introduce strong Lewis acid sites for gas binding. For this project, we utilized a mixed ligand and heterometallic strategy to synthesize a novel MOF compound consisting of indium, cobalt, benzenetricarboxylic acid (btc), and triazole (trz). This compound adopts kagome arrangement of zig-zag chains, which build up the walls of 1D channels. Cobalt dimer clusters were entrapped around these channels providing a high density of open metal sites. The obtained compound represents an excellent example of mixed ligands synthesis and pore space partition. The stability and gas sorption properties have been studied and its potential usage in gas separation is discussed. Data obtained from this experiment could help drive the development of fuel storage and carbon sequestration as well as providing a greater insight on MOF-gas interaction.

Summary of research results to be presented

Crystal's structure and composition

Crystal's physical properties

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Nov 18th, 9:59 AM Nov 18th, 11:00 AM

A new heterometallic indium-cobalt metal-organic framework constructed with a -1/-3 mixed-ligand strategy

BSC-Ursa Minor 138

Metal-organic frameworks (MOFs) are a class of crystalline porous materials, which can be utilized to adsorb and separate gaseous species. For improved gas sorption and separation performance, MOFs with appropriate pore size and high density of strong binding sites are desired. Pore space partition has been demonstrated to be a powerful strategy for pore space engineering, which can facilitate the sorption of small gas molecules such as CO2. Especially, pore space partition by entrapment of metal clusters can introduce strong Lewis acid sites for gas binding. For this project, we utilized a mixed ligand and heterometallic strategy to synthesize a novel MOF compound consisting of indium, cobalt, benzenetricarboxylic acid (btc), and triazole (trz). This compound adopts kagome arrangement of zig-zag chains, which build up the walls of 1D channels. Cobalt dimer clusters were entrapped around these channels providing a high density of open metal sites. The obtained compound represents an excellent example of mixed ligands synthesis and pore space partition. The stability and gas sorption properties have been studied and its potential usage in gas separation is discussed. Data obtained from this experiment could help drive the development of fuel storage and carbon sequestration as well as providing a greater insight on MOF-gas interaction.