Surface enhanced NMR spectroscopy by dynamic nuclear polarization.
It is shown that surface NMR spectra can be greatly enhanced using dynamic nuclear polarization. Polarization is transferred from the protons of the solvent to the rare nuclei (here carbon-13 at natural isotopic abundance) at the surface, yielding at least a 50-fold signal enhancement for surface species covalently incorporated into a silica framework.
Lesage
Anne
A
Centre de RMN à Très Hauts Champs, Université de Lyon (CNRS/ENS Lyon/UCB Lyon 1), 69100 Villeurbanne, France.
Lelli
Moreno
M
Gajan
David
D
Caporini
Marc A
MA
Vitzthum
Veronika
V
Miéville
Pascal
P
Alauzun
Johan
J
Roussey
Arthur
A
Thieuleux
Chloé
C
Mehdi
Ahmad
A
Bodenhausen
Geoffrey
G
Copéret
Christophe
C
Emsley
Lyndon
L