Anomalously low activation energy of nanoconfined MgCO3 precipitation | Zendy

Quin R. S. Miller | Zendy; John Kaszuba | Zendy; Herbert T. Schaef | Zendy; Mark Bowden | Zendy; B. Peter McGrail | Zendy; Kevin M. Rosso | Zendy

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Anomalously low activation energy of nanoconfined MgCO₃ precipitation

Author(s) -

Quin R. S. Miller,

John Kaszuba,

Herbert T. Schaef,

Mark Bowden,

B. Peter McGrail,

Kevin M. Rosso

Publication year - 2019

Publication title -

chemical communications

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.837

H-Index - 333

eISSN - 1364-548X

pISSN - 1359-7345

DOI - 10.1039/c9cc01337g

Subject(s) - precipitation , activation energy , chemical physics , energy (signal processing) , chemistry , materials science , chemical engineering , physics , meteorology , quantum mechanics , engineering

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.

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