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Chemicals, plastics and rubber industries

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Radiation-induced catalysis on oxide surfaces: degradation of hexachlorobenzene on gamma-irradiated alumina nanoparticles

Article Abstract:

The reactivity of alumina under gamma irradiation has been investigated by focusing on radiation-induced catalysis on metal oxide surfaces. The objective is to determine if charge separation and charge transfer leads to catalytic degradation of an adsorbed compound, hexachlorobenzene. Radiolytic transformation of hexachlorobenzene adsorbed to alumina and potassium bromide was analyzed using different techniques, including diffuse reflectance, ultraviolet and Fourier transform infrared spectroscopy. Results show that hexachlorobenzene conversion to dechlorinated products decreases as surface coverage on alumina increases, suggesting the crucial catalytic role of the support material.

Author: Kamat, Prashant V., Zacheis, George Adam, Gray, Kimberly A.
Publisher: American Chemical Society
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1999
Irradiation, Metallic oxides, Metal oxides, Surface chemistry, Catalysis, Aluminum oxide, Chlorobenzene, Chlorobenzenes, Irradiation (Radiation exposure)

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Molecular dynamics and NMR study of the alpha(1->4) and alpha(1->6) glycoside linkages: maltose and isomaltose

Article Abstract:

The comparison of molecular dynamics (MD) simulations with NMR relaxation experiments for maltose and isomaltose is computed. The simplest models for the alpha(1->4) and alpha(1->6) glycoside linkages in amylopectin are maltose and isomaltose.

Author: Du, H., Snurr, R. Q., Best, Robert B., Jackson, Graham E., Naidoo, Kevin J.
Publisher: American Chemical Society
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2001
Science & research, Molecular dynamics, Nuclear magnetic resonance, Glycosides, Atomic properties

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Subjects list: Research
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