Enhanced biomimetic CO2 sequestration and CaCO3 crystallization using complex encapsulated metal organic framework

A new biomimetic complex (Co-BBP) that mimics the active site of carbonic anhydrase (CA) was prepared by the coordination of cobalt (II) with 2, 6-bis(2-benzimidazolyl) and was encapsulated into a metal organic framework (Co-BBP@Tb-MOF). Carbon dioxide (CO2) sequestration was carried out via an in v...

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Bibliographic Details
Published in:Journal of crystal growth 2013-06, Vol.373, p.96-101
Main Authors: Sahoo, Prakash C., Jang, Young Nam, Lee, Seung Woo
Format: Article
Language:English
Subjects:
A1. Cobalt complex
A2. Metal organic framework (MOF)
A3. Carbon dioxide
B1. Calcium carbonate
Calcium carbonate
Carbon capture and storage
Carbon dioxide
Catalysis
Catalysts
Chemistry
Cobalt
Condensed matter: structure, mechanical and thermal properties
Cross-disciplinary physics: materials science
rheology
Crystallization
Encapsulation
Equations of state, phase equilibria, and phase transitions
Exact sciences and technology
General and physical chemistry
General, apparatus
Materials science
Metal-organic frameworks
Organic compounds
Other materials
Physics
Solid-solid transitions
Specific materials
Specific phase transitions
Structure of solids and liquids
crystallography
Structure of specific crystalline solids
Surface physical chemistry
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Summary:A new biomimetic complex (Co-BBP) that mimics the active site of carbonic anhydrase (CA) was prepared by the coordination of cobalt (II) with 2, 6-bis(2-benzimidazolyl) and was encapsulated into a metal organic framework (Co-BBP@Tb-MOF). Carbon dioxide (CO2) sequestration was carried out via an in vitro mineralization approach using these biomimetic catalysts. The biomimetic catalysts were expected to enhance CO2 hydration and calcium carbonate (CaCO3) crystallization based on the same mechanism as that of CA. ►A Cobalt complex (Co-BBP) was prepared to mimic the active site of carbonic anhydrase. ► The activity of Co-BBP was enhanced after encapsulation in a metal organic framework (MOF). ► Co-BBP@MOF showed superior activity for CO2 hydration. ► In-vitro crystallization suggested that Co-BBP@Tb-MOF dramatically alter CaCO3 morphology.
ISSN:0022-0248
1873-5002
DOI:10.1016/j.jcrysgro.2012.11.043