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Investigating Local Structure in Layered Double Hydroxides with 17 O NMR Spectroscopy
Author(s) -
Zhao Li,
Qi Zhe,
Blanc Frédéric,
Yu Guiyun,
Wang Meng,
Xue Nianhua,
Ke Xiaokang,
Guo Xuefeng,
Ding Weiping,
Grey Clare P.,
Peng Luming
Publication year - 2014
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201301157
Subject(s) - layered double hydroxides , materials science , spectroscopy , magic angle spinning , solid state nuclear magnetic resonance , nuclear magnetic resonance spectroscopy , ion , magic angle , nuclear magnetic resonance , inorganic chemistry , chemistry , physics , hydroxide , organic chemistry , quantum mechanics
A new method based on the “memory effect” for efficient and economical 17 O labeling of layered double hydroxides (LDHs) is introduced. High‐quality 17 O solid‐state NMR spectra are obtained, for the first time, for LDHs prepared with only several hundred microliters of 17 O‐enriched H 2 O. The 17 O resonances due to the different oxygen ions in the structure of LDHs can be resolved with better resolution than the results obtained from 1 H ultrafast magic angle spinning (MAS) NMR spectroscopy. The results show clear evidence for Al–O–Al avoidance. Since only intermediate MAS speeds and fields are used, this new approach can be incorporated easily with a variety of dipolar recoupling schemes to explore the key interactions and applications of LDHs.