We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Synthesis, characterization and low-temperature carbonation of mesoporous magnesium oxide.
- Authors
Hamdi, Sondes; Vieille, Laetitia; Nahdi, Kais; Favergeon, Loïc
- Abstract
A sample of MgO was successfully synthesized using thermal decomposition of hydromagnesite and compared to commercial material. The characterization of materials using XRD, SEM, BET and BJH methods showed that the thermal decomposition way led to rectangular mesoporous microsheets with high specific surface area of 100 m2 g−1. This porous magnesium oxide has been shown to be a potential candidate for CO2 capture at low temperatures range (30 and 50 °C), low pressures of CO2 ( P CO 2 = 600 mbar ) and in the presence of water vapor ( P H 2 O = 15 mbar ). In these conditions, our results show that 11% of MgO was converted to hydrated magnesium carbonate MgCO3·3H2O after 8 h of carbonation in a thermobalance and reached 54% after 24 h of carbonation using tube furnace. After carbonation, hydration reaction pore size and surface area have noticeably changed.
- Subjects
WATER vapor; MAGNESIUM carbonate; SURFACE area; LOW temperatures; MAGNESIUM oxide; THERMOGRAVIMETRY
- Publication
Journal of Thermal Analysis & Calorimetry, 2019, Vol 138, Issue 3, p1923
- ISSN
1388-6150
- Publication type
Academic Journal
- DOI
10.1007/s10973-019-08431-1