[HTML][HTML] Advanced solid-state NMR spectroscopy and its applications in zeolite chemistry

M Zheng, Y Chu, Q Wang, Y Wang, J Xu… - Progress in Nuclear …, 2024 - Elsevier
Solid-state NMR spectroscopy (ssNMR) can provide details about the structure, host–
guest/guest–guest interactions and dynamic behavior of materials at atomic length scales. A …

High-resolution NMR of quadrupolar nuclei in solids: the satellite-transition magic angle spinning (STMAS) experiment

SE Ashbrook, S Wimperis - Progress in Nuclear Magnetic Resonance …, 2004 - Elsevier
1. Introduction............................................................................. 54 2. Theoretical
background.................................................................... 55 2.1. Origin of quadrupolar …

The effect of natural zeolite on microstructure, mechanical and heavy metals adsorption properties of metakaolin based geopolymers

S Andrejkovičová, A Sudagar, J Rocha, C Patinha… - Applied Clay …, 2016 - Elsevier
This work investigates the effect of clinoptilolite, a natural zeolite, as filler on the mechanical
performance and heavy metal's adsorption capacity of the metakaolin-based geopolymers …

Isotropic NMR spectra of half-integer quadrupolar nuclei using satellite transitions and magic-angle spinning

Z Gan - Journal of the American Chemical Society, 2000 - ACS Publications
Nuclear magnetic resonance (NMR) spectroscopy has become an important tool for
structural characterization of many important materials such as minerals, ceramics, glasses …

Advantages of double frequency sweeps in static, MAS and MQMAS NMR of spin I= 3/2 nuclei

APM Kentgens, R Verhagen - Chemical Physics Letters, 1999 - Elsevier
The use of double frequency sweeps (DFSs) consisting of two sidebands generated by a
time-dependent amplitude modulation of the rf-carrier frequency is demonstrated in NMR …

A practical guide to solid-state NMR of half-integer quadrupolar nuclei with some applications to disordered systems

APM Kentgens - Geoderma, 1997 - Elsevier
The practical aspects for obtaining useful NMR spectra of half-integer quadrupolar nuclei in
diamagnetic solids are discussed in some detail. The general appearance of the Magic …

Sensitivity enhancement of the MQMAS NMR experiment by fast amplitude modulation of the pulses

PK Madhu, A Goldbourt, L Frydman, S Vega - Chemical Physics Letters, 1999 - Elsevier
We report here an improved way of doing the multiple-quantum magic-angle spinning
(MQMAS) NMR experiment that relies on the use of amplitude modulated pulses. These …

Triple, quintuple and higher order multiple quantum MAS NMR of quadrupolar nuclei

JP Amoureux, C Fernandez - Solid State Nuclear Magnetic Resonance, 1998 - Elsevier
The optimization of the coherence transfers involved in five, seven and nine-quantum
versions of the recently discovered MQMAS technique, is analysed numerically. Data …

Population and coherence transfer induced by double frequency sweeps in half-integer quadrupolar spin systems

D Iuga, H Schäfer, R Verhagen… - Journal of Magnetic …, 2000 - Elsevier
We have recently shown that the sensitivity of single-and multiple-quantum NMR
experiments of half-integer (N/2) quadrupolar nuclei can be increased significantly by …

Dynamic nuclear polarization of quadrupolar nuclei using cross polarization from protons: surface-enhanced aluminium-27 NMR

V Vitzthum, P Miéville, D Carnevale… - Chemical …, 2012 - pubs.rsc.org
Dynamic nuclear polarization of quadrupolar nuclei using cross polarization from protons :
surface-enhanced aluminium-27 NMR - Chemical Communications (RSC Publishing) DOI:10.1039/C2CC15905H …