Work

Innovative strategies for accelerating carbonation: unraveling the catalytic potential of Metal-Organic Frameworks

Year: 2024

Type: conference-paper

Abstract: Innovative lime-based plaster and render formulations integrating metal-organic frameworks (MOFs) as additives were explored to advance carbon neutrality in lime production and application. Inspired by the catalytic efficiency of natural carbonic anhydrase, MOFs' potential to enhance carbonation in lime water and pastes was investigated. Four MOF groups—UiO-66/UiO-66(NH2), ZIF-L, ZIF-EC-1, and MOF-808—were synthesized to facilitate CO2 sequestration via atmospheric carbonation curing. Micro-Raman spectroscopy, optical microscopy, and ion-selective electrode titration were used to evaluate MOFs' influence on carbonation kinetics, calcium carbonate nucleation, and phase evolution in lime water. The degree of carbonation in the lime pastes with MOF additives was examined over three months. Results indicated enhanced kinetics of amorphous calcium carbonate formation and its transformation into calcite with MOFs. This research underscores MOFs' catalytic potential in lime carbonation, with significant implications for reducing CO2 emissions in the lime industry.

Source: Zenodo (CERN European Organization for Nuclear Research)

DOI: 10.5281/zenodo.14778774

Authors: Ilić, Teodora, Ruiz-Agudo, Encarnación, Rodriguez-Navarro, Carlos

Institution: Universidad de Granada

Language: English

Topic: Concrete and Cement Materials Research

Subfield: Civil and Structural Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Climate action, Responsible consumption and production

Open Access status: green

Funder: European Commission