Journal
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
Volume 5, Issue 14, Pages 2431-2436Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jz5007669
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Funding
- University of Liverpool
- EPSRC
- Japan Science Technology Agency PRESTO
- Gordon and Betty Moore Foundation
- French National Research Agency through the programme blanc [ANR-12-BS08-0016-01]
- Labex ARCANE [ANR-11-LABX-0003-01]
- ERC
- EPSRC [EP/K039687/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/K039687/1] Funding Source: researchfish
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We demonstrate that solid-state NMR spectra of challenging nuclei with a low gyromagnetic ratio such as yttrium-89 can be acquired quickly with indirect dynamic nuclear polarization (DNP) methods. Proton to Y-89 cross polarization (CP) magic angle spinning (MAS) spectra of Y3+ in a frozen aqueous solution were acquired in minutes using the AMUPol biradical as a polarizing agent. Subsequently, the detection of the Y-89 and H-1 NMR signals from technologically important hydrated yttrium-doped zirconate ceramics, in combination with DFT calculations, allows the local yttrium and proton environments present in these protonic conductors to be detected and assigned to different hydrogen-bonded environments.
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