scholarly journals Sensitivity enhancement via multiple contacts in the {1H–29Si}–1H cross polarization experiment: a case study of modified silica nanoparticle surfaces

RSC Advances ◽  
2020 ◽  
Vol 10 (39) ◽  
pp. 23016-23023
Author(s):  
Chuanyu Yan ◽  
François Kayser ◽  
Reiner Dieden
Keyword(s):  
Solid State ◽  
Solid State Nmr ◽  
Silica Nanoparticle ◽  
Sensitivity Enhancement ◽  
Cross Polarization ◽  
Modified Silica ◽  
Polarization Experiment ◽  
Multiple Contacts ◽  
Multiple Cross

In this paper we demonstrate {1H–29Si}–1H multiple cross polarization inverse detection (MCPi) solid state NMR as a robust technique for studying modified silica nanoparticle surfaces.

scholarly journals Analysis of sensitivity enhancement by dynamic nuclear polarization in solid-state NMR: a case study of functionalized mesoporous materials

2013 ◽  
Vol 15 (15) ◽  
pp. 5553 ◽  
Author(s):  
Takeshi Kobayashi ◽  
Olivier Lafon ◽  
Aany S. Lilly Thankamony ◽  
Igor I. Slowing ◽  
Kapil Kandel ◽  
...  
Keyword(s):  
Solid State ◽  
Mesoporous Materials ◽  
Dynamic Nuclear Polarization ◽  
Solid State Nmr ◽  
Nuclear Polarization ◽  
Sensitivity Enhancement

Up to 100% Improvement in Dynamic Nuclear Polarization Solid-State NMR Sensitivity Enhancement of Polymers by Removing Oxygen

2015 ◽  
Vol 36 (15) ◽  
pp. 1416-1421 ◽  
Author(s):  
Dao Le ◽  
Fabio Ziarelli ◽  
Trang N. T. Phan ◽  
Giulia Mollica ◽  
Pierre Thureau ◽  
...  
Keyword(s):  
Solid State ◽  
Dynamic Nuclear Polarization ◽  
Solid State Nmr ◽  
Nuclear Polarization ◽  
Sensitivity Enhancement ◽  
Nmr Sensitivity

Solid State NMR Studies of the Adsorbed States of Formic Acid on Y Zeolites

1980 ◽  
Vol 3 ◽  
Author(s):  
T. Michael Duncan ◽  
Robert W. Vaughan
Keyword(s):  
Solid State ◽  
Formic Acid ◽  
Solid State Nmr ◽  
Double Resonance ◽  
Chemical Shift Anisotropy ◽  
Surface States ◽  
Cross Polarization ◽  
Nmr Studies ◽  
Y Zeolites ◽  
Nmr Techniques

ABSTRACTSeveral multiple-pulse double-resonance NMR techniques have been applied to isolate and characterize the spectra of the adsorbed states of formic acid on two Y zeolites. The two surface states, bidentatT3 and ynidentate, possess different motional properties and 13C - H cross-polarization techniques may be used to separate the spectra. The 13C chemical shift anisotropy is founa to iorrelate with the symmetry of the formate species. The H spectrum of the carbonyl hydrogen, selectively observed with the dipolardifference method, indicates that this hydrogen becomes more acidic upon adsorption.

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