A5011572328- Advanced NMR Techniques and Applications
- Solid-state spectroscopy and crystallography
- Spectroscopy and Quantum Chemical Studies
- Advanced Battery Materials and Technologies
- Electron Spin Resonance Studies
- Photochemistry and Electron Transfer Studies
Institut de Chimie Radicalaire
2023
Dynamic nuclear polarization can improve the sensitivity of magic-angle spinning solid-state NMR experiments by 1-2 orders magnitude. In aqueous media, are usually performed using so-called DNP juice, a glycerol-d8/D2O/H2O mixture (60/30/10, v/v/v) that form homogeneous glass at cryogenic temperatures. This acts as cryoprotectant and prevents phase separation paramagnetic polarizing agents (PAs) added to provide source electron spin required for DNP. Here, we show relatively high 1H...
The combination of nuclear and electron magnetic resonance techniques, in pulse continuous wave regimes, is used to unravel the nature features light-induced state arising at surface chemically prepared zinc oxide nanoparticles (NPs) occurring under 120 K when subjected a sub-bandgap (405 nm) laser excitation. It shown that four-line structure observed around g ∼ 2.00 as-grown samples (beside usual core-defect signal 1.96) arises from surface-located methyl radicals (•CH3), originating...