Dynamic nuclear polarization NMR of low-γ nuclei: Structural insights into hydrated yttrium-doped BaZrO3

Frédéric Blanc*, Luke Sperrin, Daniel Lee, Riza Dervişoǧlu, Yoshihiro Yamazaki, Sossina M. Haile, Gaël De Paëpe, Clare P. Grey

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

46 Scopus citations

Abstract

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 89Y 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 89Y 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.

Original languageEnglish (US)
Pages (from-to)2431-2436
Number of pages6
JournalJournal of Physical Chemistry Letters
Volume5
Issue number14
DOIs
StatePublished - Jul 17 2014

Keywords

  • dynamic nuclear polarization
  • hydrated yttrium-doped barium zirconate
  • solid-state nuclear magnetic resonance
  • yttrium-89

ASJC Scopus subject areas

  • Materials Science(all)
  • Physical and Theoretical Chemistry

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