Wednesday, May 17, 2017

Surface-selective direct 17O DNP NMR of CeO2 nanoparticles #DNPNMR

Michael A. Hope et. al, Chem. Commun., 2017,53, 2142-2145 


Surface-selective direct 17O DNP has been demonstrated for the first time on CeO2nanoparticles, for which the first three layers can be distinguished with high selectivity. Polarisation build-up curves show that the polarisation of the (sub-)surface sites builds up faster than the bulk, accounting for the remarkable surface selectivity.