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 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.

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

scholarly journals In situ K-edge X-ray absorption spectroscopy of the ligand environment of single-site Au/C catalysts during acetylene hydrochlorination

2020 ◽  
Vol 11 (27) ◽  
pp. 7040-7052
Author(s):  
Grazia Malta ◽  
Simon A. Kondrat ◽  
Simon J. Freakley ◽  
David J. Morgan ◽  
Emma K. Gibson ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Single Site ◽  
Acetylene Hydrochlorination ◽  
Ligand Environment ◽  
X Ray ◽  
X Ray Absorption

In situ chlorine and sulphur XAS shows a dynamic ligand environment around cationic Au single-sites during acetylene hydrochlorination.

scholarly journals High-Energy-Resolution X-ray Absorption Spectroscopy for Identification of Reactive Surface Species on Supported Single-Site Iridium Catalysts

2017 ◽  
Vol 23 (59) ◽  
pp. 14760-14768 ◽  
Author(s):  
Adam S. Hoffman ◽  
Dimosthenis Sokaras ◽  
Shengjie Zhang ◽  
Louise M. Debefve ◽  
Chia-Yu Fang ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Energy Resolution ◽  
High Energy ◽  
Single Site ◽  
High Energy Resolution ◽  
Surface Species ◽  
Iridium Catalysts ◽  
X Ray ◽  
Reactive Surface ◽  
X Ray Absorption

scholarly journals High-Energy-Resolution X-ray Absorption Spectroscopy for Identification of Reactive Surface Species on Supported Single-Site Iridium Catalysts

2017 ◽  
Vol 23 (59) ◽  
pp. 14669-14669
Author(s):  
Adam S. Hoffman ◽  
Dimosthenis Sokaras ◽  
Shengjie Zhang ◽  
Louise M. Debefve ◽  
Chia-Yu Fang ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Energy Resolution ◽  
High Energy ◽  
Single Site ◽  
High Energy Resolution ◽  
Surface Species ◽  
Iridium Catalysts ◽  
X Ray ◽  
Reactive Surface ◽  
X Ray Absorption

Controlled Assembly of a Heterogeneous Single-Site Ethylene Trimerization Catalyst as Probed by X-ray Absorption Spectroscopy

2006 ◽  
Vol 12 (18) ◽  
pp. 4756-4763 ◽  
Author(s):  
Cristina N. Nenu ◽  
Joost N. J. van Lingen ◽  
Frank M. F. de Groot ◽  
Diek C. Koningsberger ◽  
Bert M. Weckhuysen
Keyword(s):  
Absorption Spectroscopy ◽  
Single Site ◽  
X Ray ◽  
Controlled Assembly ◽  
Ethylene Trimerization ◽  
X Ray Absorption
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