Forsterite carbonated in thin H2O films to magnesite via amorphous magnesium carbonate during reaction with H2O-bearing liquid CO2 at 25 °C. This reaction pathway contrasts with previous studies on the same system but carried out at higher H2O activity and temperature, where more highly hydrated nesquehonite was the metastable intermediate.
Revised: October 26, 2020 |
Published: October 18, 2020
Citation
Mergelsberg S.T., S.N. Kerisit, E.S. Ilton, O. Qafoku, C.J. Thompson, and J.S. Loring. 2020.Low Temperature and Limited Water Activity Reveal a Pathway to Magnesite via Amorphous Magnesium Carbonate.Chemical Communications 56, no. 81:12154-12157.PNNL-SA-154304.doi:10.1039/D0CC04907G