| Autor: |
Clare P. Grey, Luke Sperrin, Sossina M. Haile, Frédéric Blanc, Gaël De Paëpe, Yoshihiro Yamazaki, Daniel Lee, Riza Dervisoglu |
| Rok vydání: |
2014 |
| Předmět: |
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| Zdroj: |
The Journal of Physical Chemistry Letters. 5:2431-2436 |
| ISSN: |
1948-7185 |
| DOI: |
10.1021/jz5007669 |
| Popis: |
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 ^(89)Y cross polarization (CP) magic angle spinning (MAS) spectra of Y^(3+) in a frozen aqueous solution were acquired in minutes using the AMUPol biradical as a polarizing agent. Subsequently, the detection of the ^(89)Y and 1H 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. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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