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Title: Anomalously low activation energy of nanoconfined MgCO3 precipitation

Journal Article · · ChemComm
DOI:https://doi.org/10.1039/c9cc01337g· OSTI ID:1544785

In this work, magnesite (MgCO3) precipitation within the nanoconfined space of adsorbed H2O films (~5 monolayers) was determined to have an apparent activation energy of only 36 ± 6 kJ mol–1, suggesting that Mg2+ under nanoconfinement adopts a hydration configuration that mimics that of aqueous Ca2+, at least energetically, if not also specifically in hydration structure.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States). Environmental Molecular Sciences Laboratory (EMSL)
Sponsoring Organization:
USDOE Office of Fossil Energy (FE); USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences, and Biosciences Division; Nielson Energy Fellowship; USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
AC05-76RL01830
OSTI ID:
1544785
Alternate ID(s):
OSTI ID: 1523294
Report Number(s):
PNNL-SA-141004; CHCOFS
Journal Information:
ChemComm, Vol. 55, Issue 48; ISSN 1359-7345
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 18 works
Citation information provided by
Web of Science

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Figures / Tables (2)


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