Towards Determination of Distances Between Nanoparticles and Grafted Paramagnetic Ions by NMR Relaxation

A. M. Panich, N. A. Sergeev

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

We developed an approach for determining distances between carbon nanoparticles and grafted paramagnetic ions and molecules by means of nuclear spin–lattice relaxation data. The approach was applied to copper-, cobalt- and gadolinium-grafted nanodiamonds, iron-grafted graphenes, manganese-grafted graphene oxide and activated carbon fibers that adsorb paramagnetic oxygen molecules. Our findings show that the aforementioned distances vary in the range of 2.7–5.4 Å and that the fixation of paramagnetic ions to nanoparticles is most likely implemented by means of the surface functional groups. The nuclear magnetic resonance data data are compared with the results of electron paramagnetic resonance measurements and density functional theory calculations.

Original languageEnglish
Pages (from-to)195-208
Number of pages14
JournalApplied Magnetic Resonance
Volume49
Issue number2
DOIs
StatePublished - 1 Feb 2018

Fingerprint

Dive into the research topics of 'Towards Determination of Distances Between Nanoparticles and Grafted Paramagnetic Ions by NMR Relaxation'. Together they form a unique fingerprint.

Cite this