scholarly journals From single-site tantalum complexes to nanoparticles of TaxNy and TaOxNy supported on silica: elucidation of synthesis chemistry by dynamic nuclear polarization surface enhanced NMR spectroscopy and X-ray absorption spectroscopy

2017 ◽  
Vol 8 (8) ◽  
pp. 5650-5661 ◽  
Author(s):  
Janet C. Mohandas ◽  
Edy Abou-Hamad ◽  
Emmanuel Callens ◽  
Manoja K. Samantaray ◽  
David Gajan ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Absorption Spectroscopy ◽  
Dynamic Nuclear Polarization ◽  
Nuclear Polarization ◽  
Single Site ◽  
X Ray ◽  
Surface Enhanced ◽  
X Ray Absorption

SOMC is exploited for synthesizing very fine nanoparticles of TaxNy/TaOxNy on silica, elucidating the strategies with DNP SENS and EXAFS.

Improved lifetime and stability of copper species in hierarchical, copper-incorporated CuSAPO-34 verified by catalytic model reactions

2021 ◽  
Author(s):  
Guro Sørli ◽  
Muhammad Mohsin Azim ◽  
Magnus Ronning ◽  
Karina Mathisen
Keyword(s):  
Absorption Spectroscopy ◽  
Mesoporous Structure ◽  
Single Site ◽  
Pluronic F127 ◽  
Structure Directing Agent ◽  
Copper Species ◽  
X Ray ◽  
X Ray Absorption ◽  
Model Reactions

The first successful synthesis of hierarchical CuSAPO-34 (3.9 wt.% Cu) is reported using the polymer Pluronic F127 as mesoporous structure directing agent (SDA). X-ray absorption spectroscopy (XAS) proved single site...

scholarly journals Structure of Colloidal Quantum Dots from Dynamic Nuclear Polarization Surface Enhanced NMR Spectroscopy

2015 ◽  
Vol 137 (43) ◽  
pp. 13964-13971 ◽  
Author(s):  
Laura Piveteau ◽  
Ta-Chung Ong ◽  
Aaron J. Rossini ◽  
Lyndon Emsley ◽  
Christophe Copéret ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Nmr Spectroscopy ◽  
Dynamic Nuclear Polarization ◽  
Nuclear Polarization ◽  
Colloidal Quantum Dots ◽  
Surface Enhanced

In Situ XRD and Dynamic Nuclear Polarization Surface Enhanced NMR Spectroscopy Unravel the Deactivation Mechanism of CaO-Based, Ca3Al2O6-Stabilized CO2 Sorbents

2018 ◽  
Vol 30 (4) ◽  
pp. 1344-1352 ◽  
Author(s):  
Sung Min Kim ◽  
Wei-Chih Liao ◽  
Agnieszka M. Kierzkowska ◽  
Tigran Margossian ◽  
Davood Hosseini ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Dynamic Nuclear Polarization ◽  
Nuclear Polarization ◽  
In Situ Xrd ◽  
Surface Enhanced ◽  
Deactivation Mechanism

scholarly journals Surface enhanced dynamic nuclear polarization solid-state NMR spectroscopy sheds light on Brønsted–Lewis acid synergy during the zeolite catalyzed methanol-to-hydrocarbon process

2019 ◽  
Vol 10 (39) ◽  
pp. 8946-8954 ◽  
Author(s):  
Abhishek Dutta Chowdhury ◽  
Irina Yarulina ◽  
Edy Abou-Hamad ◽  
Andrei Gurinov ◽  
Jorge Gascon
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Lewis Acid ◽  
Dynamic Nuclear Polarization ◽  
Solid State Nmr ◽  
Nuclear Polarization ◽  
Solid State Nmr Spectroscopy ◽  
Surface Enhanced ◽  
Methanol To Hydrocarbon

Surface-enhanced dynamic nuclear polarization solid-state NMR spectroscopy has been applied to identify the role of surface-carbene species and elucidating Brønsted–Lewis acid synergy during the zeolite-catalyzed methanol-to-hydrocarbon process.

Improved Dynamic Nuclear Polarization Surface-Enhanced NMR Spectroscopy through Controlled Incorporation of Deuterated Functional Groups

2013 ◽  
Vol 125 (4) ◽  
pp. 1260-1263 ◽  
Author(s):  
Alexandre Zagdoun ◽  
Aaron J. Rossini ◽  
Matthew P. Conley ◽  
Wolfram R. Grüning ◽  
Martin Schwarzwälder ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Functional Groups ◽  
Dynamic Nuclear Polarization ◽  
Nuclear Polarization ◽  
Surface Enhanced

scholarly journals Predicting the DNP-SENS efficiency in reactive heterogeneous catalysts from hydrophilicity

2018 ◽  
Vol 9 (21) ◽  
pp. 4866-4872 ◽  
Author(s):  
Eva Pump ◽  
Anissa Bendjeriou-Sedjerari ◽  
Jasmine Viger-Gravel ◽  
David Gajan ◽  
Baptiste Scotto ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Dynamic Nuclear Polarization ◽  
Heterogeneous Catalysts ◽  
Nuclear Polarization ◽  
Molecular Level ◽  
Surface Enhanced

Identification of surfaces at the molecular level has benefited from progress in dynamic nuclear polarization surface enhanced NMR spectroscopy (DNP SENS).

Single-Site Copper by Incorporation in Ambient Pressure Dried Silica Aerogel and Xerogel Systems: An X-ray Absorption Spectroscopy Study

2011 ◽  
Vol 115 (39) ◽  
pp. 19260-19268 ◽  
Author(s):  
Tina Kristiansen ◽  
Karina Mathisen ◽  
Mari-Ann Einarsrud ◽  
Morten Bjørgen ◽  
David G. Nicholson
Keyword(s):  
Absorption Spectroscopy ◽  
Silica Aerogel ◽  
Ambient Pressure ◽  
Single Site ◽  
Spectroscopy Study ◽  
X Ray ◽  
X Ray Absorption
Sign in / Sign up

Export Citation Format

Share Document