Solid-state nuclear magnetic resonance studies of nanoparticles

被引:19
作者
Casabianca, Leah B. [1 ]
机构
[1] Clemson Univ, Dept Chem, Clemson, SC 29634 USA
基金
美国国家科学基金会;
关键词
Solid-state NMR; Nanoparticles; Surface; Nanodiamonds; Catalysis; Dynamic nuclear polarization; Inorganic; Core-shell; MESOPOROUS SILICA NANOPARTICLES; CORE-SHELL STRUCTURE; NMR-SPECTROSCOPY; DNP-NMR; GOLD NANOPARTICLE; CDS NANOPARTICLES; CAPPING STRUCTURE; QUANTUM DOTS; SURFACE; POLARIZATION;
D O I
10.1016/j.ssnmr.2020.101664
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
In this trends article, we review seminal and recent studies using static and magic-angle spinning solid-state NMR to study the structure of nanoparticles and ligands attached to nanoparticles. Solid-state NMR techniques including one-dimensional multinuclear NMR, cross-polarization, techniques for measuring dipolar coupling and internuclear distances, and multidimensional NMR have provided insight into the core-shell structure of nano-particles as well as the structure of ligands on the nanoparticle surface. Hyperpolarization techniques, in particular solid-state dynamic nuclear polarization (DNP), have enabled detailed studies of nanoparticle core-shell structure and surface chemistry, by allowing unprecedented levels of sensitivity to be achieved. The high signalto-noise afforded by DNP has allowed homonuclear and heteronuclear correlation experiments involving nuclei with low natural abundance to be performed in reasonable experimental times, which previously would not have been possible. The use of DNP to study nanoparticles and their applications will be a fruitful area of study in the coming years as well.
引用
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页数:9
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