Anomalously low activation energy of nanoconfined MgCO3 precipitation
- Univ. of Wyoming, Laramie, WY (United States)
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Environmental Molecular Sciences Lab. (EMSL)
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
Cited by: 18 works
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