scholarly journals Characterization of Silica Gels by29Si MAS NMR and IR Spectroscopic Measurements

2009 ◽  
Vol 635 (13-14) ◽  
pp. 2191-2196 ◽  
Author(s):  
Wolfgang Lutz ◽  
Dirk Täschner ◽  
Rolf Kurzhals ◽  
Detlef Heidemann ◽  
Cornelia Hübert
Keyword(s):  
Mas Nmr ◽  
Silica Gels ◽  
Spectroscopic Measurements ◽  
Ir Spectroscopic

Spectral Investigation on the Growth and Characterization of NLO Crystals of Thiourea Succinic Acid Single Crystal.

2015 ◽  
Vol 2 (2) ◽  
pp. 70-73
Author(s):  
Kannan.P ◽  
Thambidurai.S ◽  
Suresh.N
Keyword(s):  
Single Crystal ◽  
Succinic Acid ◽  
Slow Evaporation Technique ◽  
Absorption Studies ◽  
Dta Analysis ◽  
Evaporation Technique ◽  
Ft Ir ◽  
Ir Spectroscopic ◽  
Thermal Stability Of

Growth of optically transparent single crystals of thiourea succinic acid (TUSA) was grown successfully from aqueous solution by slow evaporation technique. The crystal structure was elucidated using the single crystal XRD. The various functional groups and the modes of vibrations were identified by FT-IR spectroscopic analysis. The optical absorption studies indicate that the optical transparency window is quite wide making its suitable for NLO applications. Thermal stability of the crown crystal carried out by TGA-DTA analysis.

Kinetics of catalytic reduction of nitrogen oxide by carbon monoxide on CuO/Al2O3 catalyst

1983 ◽  
Vol 48 (11) ◽  
pp. 3202-3208 ◽  
Author(s):  
Zdeněk Musil ◽  
Vladimír Pour
Keyword(s):  
Carbon Monoxide ◽  
Nitrogen Oxide ◽  
Rate Equation ◽  
Catalytic Reduction ◽  
Zero Order ◽  
Spectroscopic Measurements ◽  
First Order ◽  
Ir Spectroscopic ◽  
Kinetics Of ◽  
Al2o3 Catalyst

The kinetics of the reduction of nitrogen oxide by carbon monoxide on CuO/Al2O3 catalyst (8.36 mass % CuO) were determined at temperatures between 413 and 473 K. The reaction was found to be first order in NO and zero order in CO. The observed kinetics are consistent with a rate equation derived from a mechanism proposed on the basis of IR spectroscopic measurements.

Structural Characterization of Glass from the Inversion of23Na and27Al 3Q-MAS NMR Spectra

1999 ◽  
Vol 103 (47) ◽  
pp. 10356-10364 ◽  
Author(s):  
F. Angeli ◽  
T. Charpentier ◽  
P. Faucon ◽  
J.-C. Petit
Keyword(s):  
Structural Characterization ◽  
Nmr Spectra ◽  
Mas Nmr

Chromatographic characterization of surface-modified silica gels

1973 ◽  
Vol 87 (1) ◽  
pp. 35-48 ◽  
Author(s):  
Shubhender Kapila ◽  
Walter A. Aue ◽  
Joseph M. Augl
Keyword(s):  
Silica Gels ◽  
Modified Silica ◽  
Chromatographic Characterization ◽  
Surface Modified ◽  
Modified Silica Gels
Sign in / Sign up

Export Citation Format

Share Document