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Distinguishing between bulk and edge hydroxyl vibrational properties of 2 : 1 phyllosilicates via deuteration

Journal Article · · ChemComm
DOI:https://doi.org/10.1039/C9CC00164F· OSTI ID:1496988

In this study, observation of vibrational properties of phyllosilicate edges via a combined molecular modeling and experimental approach was performed. Deuterium exchange was utilized to isolate edge vibrational modes from their internal counterparts. The appearance of a specific peak within the broader D2O band indicates the presence of deuteration on the edge surface, and this peak is confirmed with the simulated spectra. These results are the first to unambiguously identify spectroscopic features of phyllosilicate edge sites.

Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Chemical Sciences, Geosciences & Biosciences Division
Grant/Contract Number:
AC04-94AL85000; NA0003525
OSTI ID:
1496988
Alternate ID(s):
OSTI ID: 1494216
Report Number(s):
SAND--2019-1347J; 672365
Journal Information:
ChemComm, Journal Name: ChemComm Journal Issue: none Vol. none; ISSN CHCOFS; ISSN 1359-7345
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English

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