Characterization of adsorbed xenon in Zeolite-A, X, and Y by high-pressure 129Xe NMR spectroscopy

2004 ◽  
Vol 6 (23) ◽  
pp. 5427 ◽  
Author(s):  
Noriko Kato ◽  
Takahiro Ueda ◽  
Hironori Omi ◽  
Keisuke Miyakubo ◽  
Taro Eguchi
Keyword(s):  
High Pressure ◽  
Nmr Spectroscopy ◽  
Zeolite A ◽  
129Xe Nmr

Structural Characterization of Micro- and Mesoporous Carbon Materials Using In Situ High Pressure 129Xe NMR Spectroscopy

2014 ◽  
Vol 26 (10) ◽  
pp. 3280-3288 ◽  
Author(s):  
Martin Oschatz ◽  
Herbert C. Hoffmann ◽  
Julia Pallmann ◽  
Jana Schaber ◽  
Lars Borchardt ◽  
...  
Keyword(s):  
High Pressure ◽  
Nmr Spectroscopy ◽  
Structural Characterization ◽  
Mesoporous Carbon ◽  
Carbon Materials ◽  
129Xe Nmr ◽  
Mesoporous Carbon Materials

Intermolecular Interactions of Xe Atoms Confined in One-dimensional Nanochannels of Tris(o-phenylenedioxy)cyclotriphosphazene as Studied by High-pressure 129Xe NMR

2003 ◽  
Vol 58 (12) ◽  
pp. 727-734 ◽  
Author(s):  
Hirokazu Kobayashi ◽  
Takahiro Ueda ◽  
Keisuke Miyakubo ◽  
Taro Eguchi
Keyword(s):  
High Pressure ◽  
Nmr Spectroscopy ◽  
Chemical Shift ◽  
Pressure Dependence ◽  
Average Distance ◽  
Chemical Shift Tensor ◽  
Axially Symmetric ◽  
One Dimensional ◽  
129Xe Nmr ◽  
The One

The pressure dependence of the 129Xe chemical shift tensor confined in the Tris(o-phenylenedioxy) cyclotriphosphazene (TPP) nanochannel was investigated by high-pressure 129Xe NMR spectroscopy. The observed 129Xe spectrum in the one-dimensional TPP nanochannel (0.45 nm in diameter) exhibits a powder pattern broadened by an axially symmetric chemical shift tensor. As the pressure increases from 0.02 to 7.0 MPa, a deshielding of 90 ppm is observed for the perpendicularcomponent of the chemical shift tensor δ⊥, whereas a deshielding of about 30 ppm is observed for the parallel one, δ‖. This suggests that the components of the chemical shift tensor, δ‖ and δ⊥, are mainly dominated by the Xe-wall and Xe-Xe interaction, respectively. Furthermore, the effect of helium, which is present along with xenon gas, on the 129Xe chemical shift is examined in detail. The average distance between the Xe atoms in the nanochannel is estimated to be 0.54 nm. This was found by using δ⊥ at the saturated pressure of xenon, and comparing the increment of the chemicalshift value in δ⊥ to that of a β -phenol/Xe compound.

ChemInform Abstract: Characterization of NiNa-Y Zeolite by 129Xe NMR Spectroscopy.

1986 ◽  
Vol 17 (18) ◽  
Author(s):  
E. W. SCHARPF ◽  
R. W. CRECELY ◽  
B. C. GATES ◽  
C. DYBOWSKI
Keyword(s):  
Nmr Spectroscopy ◽  
Y Zeolite ◽  
Abstract Characterization ◽  
129Xe Nmr

The characterization of clay-organic systems

Clay Minerals ◽  
1982 ◽  
Vol 18 (4) ◽  
pp. 357-371 ◽  
Author(s):  
D. T. B. Tennakoon ◽  
R. Schlögl ◽  
T. Rayment ◽  
J. Klinowski ◽  
W. Jones ◽  
...  
Keyword(s):  
High Pressure ◽  
Nmr Spectroscopy ◽  
Catalytic Properties ◽  
Clear Distinction ◽  
Organic Systems ◽  
Catalytically Active ◽  
Natural Clays ◽  
Temperature Controlled ◽  
C Nmr

AbstractThe importance of a number of techniques (including1H and13C NMR, XRD and IR) in exploring the important catalytic properties of synthetic and natural clays is described. A clear distinction is observed between proven catalytically-active clays (e.g. Al-exchanged) and those which are generally less effective (e.g. Na-exchanged).13C NMR spectroscopy is used to identify directly products formed within the interlayer regions, and temperature-controlled powder XRD serves as a useful tool for identifying whether or not intercalation occurs under variously defined conditions. High-pressure XRD is used to verify the formation of different products during reaction.

scholarly journals High-Pressure in Situ 129Xe NMR Spectroscopy: Insights into Switching Mechanisms of Flexible Metal–Organic Frameworks Isoreticular to DUT-49

2019 ◽  
Vol 31 (16) ◽  
pp. 6193-6201 ◽  
Author(s):  
Felicitas Kolbe ◽  
Simon Krause ◽  
Volodymyr Bon ◽  
Irena Senkovska ◽  
Stefan Kaskel ◽  
...  
Keyword(s):  
High Pressure ◽  
Nmr Spectroscopy ◽  
Metal Organic Frameworks ◽  
129Xe Nmr ◽  
Metal Organic ◽  
Flexible Metal

scholarly journals In Situ Monitoring of Unique Switching Transitions in the Pressure-Amplifying Flexible Framework Material DUT-49 by High-Pressure 129Xe NMR Spectroscopy

2017 ◽  
Vol 121 (9) ◽  
pp. 5195-5200 ◽  
Author(s):  
Jana Schaber ◽  
Simon Krause ◽  
Silvia Paasch ◽  
Irena Senkovska ◽  
Volodymyr Bon ◽  
...  
Keyword(s):  
High Pressure ◽  
Nmr Spectroscopy ◽  
In Situ Monitoring ◽  
129Xe Nmr ◽  
Flexible Framework

Characterization of Microvoids in Glassy Polymers by Means of 129Xe NMR Spectroscopy.

2001 ◽  
Vol 33 (12) ◽  
pp. 934-938 ◽  
Author(s):  
Tomoyuki Suzuki ◽  
Minoru Miyauchi ◽  
Hiroaki Yoshimizu ◽  
Yoshiharu Tsujita
Keyword(s):  
Nmr Spectroscopy ◽  
Glassy Polymers ◽  
129Xe Nmr
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