Issue 12, 2022

Solution NMR methods for structural and thermodynamic investigation of nanoparticle adsorption equilibria

Abstract

Characterization of dynamic processes occurring at the nanoparticle (NP) surface is crucial for developing new and more efficient NP catalysts and materials. Thus, a vast amount of research has been dedicated to developing techniques to characterize sorption equilibria. Over recent years, solution NMR spectroscopy has emerged as a preferred tool for investigating ligand–NP interactions. Indeed, due to its ability to probe exchange dynamics over a wide range of timescales with atomic resolution, solution NMR can provide structural, kinetic, and thermodynamic information on sorption equilibria involving multiple adsorbed species and intermediate states. In this contribution, we review solution NMR methods for characterizing ligand–NP interactions, and provide examples of practical applications using these methods as standalone techniques. In addition, we illustrate how the integrated analysis of several NMR datasets was employed to elucidate the role played by support–substrate interactions in mediating the phenol hydrogenation reaction catalyzed by ceria-supported Pd nanoparticles.

Graphical abstract: Solution NMR methods for structural and thermodynamic investigation of nanoparticle adsorption equilibria

Article information

Article type
Review Article
Submitted
13 Febr. 2022
Accepted
07 Maijs 2022
First published
10 Maijs 2022
This article is Open Access
Creative Commons BY-NC license

Nanoscale Adv., 2022,4, 2583-2607

Solution NMR methods for structural and thermodynamic investigation of nanoparticle adsorption equilibria

Y. An, S. L. Sedinkin and V. Venditti, Nanoscale Adv., 2022, 4, 2583 DOI: 10.1039/D2NA00099G

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