Issue 13, 2017
From the journal:

Chemical Communications

Surface-selective direct 17O DNP NMR of CeO2 nanoparticles†

Michael A. Hope, ORCID logo a   David M. Halat,a   Pieter C. M. M. Magusin,a   Subhradip Paul,b   Luming Pengc  and  Clare P. Grey*a  

* Corresponding authors

a Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, UK
E-mail: cpg27@cam.ac.uk

b DNP MAS NMR Facility, Sir Peter Mansfield Magnetic Resonance Centre, University of Nottingham, Nottingham, UK

c Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China

Abstract

Surface-selective direct 17O DNP has been demonstrated for the first time on CeO2 nanoparticles, 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.

Graphical abstract: Surface-selective direct 17O DNP NMR of CeO2 nanoparticles

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Article information

DOI
https://doi.org/10.1039/C6CC10145C
Article type
Communication
Submitted
21 Dec 2016
Accepted
24 Jan 2017
First published
24 Jan 2017
This article is Open Access
Creative Commons BY license

Chem. Commun., 2017,53, 2142-2145

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Surface-selective direct 17O DNP NMR of CeO2 nanoparticles

M. A. Hope, D. M. Halat, P. C. M. M. Magusin, S. Paul, L. Peng and C. P. Grey, Chem. Commun., 2017, 53, 2142 DOI: 10.1039/C6CC10145C

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