Kinetics of interaction of 3-aminopropyltriethoxysilane on a silica gel surface using elemental analysis and diffuse reflectance infrared Fourier transform spectra

1997 ◽  
Vol 93 (10) ◽  
pp. 1971-1979 ◽  
Author(s):  
Ichiro Shimizu ◽  
Akihiro Yoshino ◽  
Hirofumi Okabayashi ◽  
Etsuo Nishio ◽  
Charmian J. O'Connor
Keyword(s):  
Fourier Transform ◽  
Silica Gel ◽  
Elemental Analysis ◽  
Diffuse Reflectance ◽  
Fourier Transform Spectra ◽  
Diffuse Reflectance Infrared ◽  
Kinetics Of

Decomposition Kinetics of EGDN on ZnO by Diffuse Reflectance Infrared Fourier Transform Spectroscopy

1995 ◽  
Vol 49 (4) ◽  
pp. 444-450 ◽  
Author(s):  
D. O. Henderson ◽  
R. Mu ◽  
Y. S. Tung ◽  
G. C. Huston
Keyword(s):  
Fourier Transform ◽  
Diffuse Reflectance ◽  
Fourier Transform Spectroscopy ◽  
Decomposition Kinetics ◽  
Oxide Surface ◽  
Suitable Material ◽  
Langmuir Kinetics ◽  
Ethylene Glycol Dinitrate ◽  
Diffuse Reflectance Infrared ◽  
Kinetics Of

Diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) was used to follow the decomposition kinetics of ethylene glycol dinitrate (EGDN) adsorbed on a zinc oxide surface at 313 K. The principal decomposition products are most likely a variety of carbonyl, carboxylate, and carbonate species. The appearance of these products follows zeroth-order Langmuir kinetics. Another decomposition product, carbon monoxide, exhibited more complex kinetics. Overall, because of its reactivity with EGDN, ZnO does not appear to be a suitable material for an explosive preconcentrator device.

Adsorption Kinetics of EGDN on ZnO by Diffuse Reflectance Infrared Fourier Transform Spectroscopy

1993 ◽  
Vol 47 (4) ◽  
pp. 528-532 ◽  
Author(s):  
D. O. Henderson ◽  
E. Silberman ◽  
N. Chen ◽  
F. W. Snyder
Keyword(s):  
Zinc Oxide ◽  
Fourier Transform ◽  
Adsorption Kinetics ◽  
Diffuse Reflectance ◽  
Fourier Transform Spectroscopy ◽  
Nonlinear Curve Fitting ◽  
Stretching Vibration ◽  
Diffuse Reflectance Infrared ◽  
Kinetics Of ◽  
Dose Dependent

Diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) was used to follow the adsorption kinetics of ethyleneglycol dinitrate (EGDN) on zinc oxide as a function of dosing time. Inhomogeneous broadening of the NO2 antisymmetric stretching vibration was found to be dose dependent. Through nonlinear curve-fitting techniques, the sum of three component bands was found to reproduce the inhomogeneously broadened envelope and was attributed to two different types of adsorbed EGDN corresponding to on-end and bridged sites on a zinc rich surface of zinc oxide. The adsorbed EGDN species were characterized by their line-shape parameters and adsorption kinetics.

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