Electronic excitation of Rh(super I)(CO)2 species on Al2O3 surfaces: photodissociation of the Rh(super I)-CO bond
Article Abstract:
Research was conducted to examine the photoexcitation of Rh(super I)(CO)2 species on Al2O3 surfaces using infrared and ultraviolet absorption spectroscopy. By monitoring the depletion of the CO moiety, a photodissociation energy threshold between 2.8 and 2.9 eV for the Rh(super I)(CO) bond of the Rh(super I)(CO)2 species was determined. The electronic excitations correlate well with the photon energy dependence of the photodissociation cross section of Rh(super I)(CO)2 species on Al2O3 surfaces.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1998
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Adsorption and decomposition of dimethyl methylphosphonate on TiO2
Article Abstract:
Studies done on the adsorption of dimethyl methylphosphonate (DMMP) and its decomposition on a powdered TiO2 surface by using transmission infrared spectroscopy for different temperature domains are reported. Results reveal that transmission infrared spectroscopy is a powerful method, able to separate surface diffusion, adsorption and dissociation processes for this molecule on TiO2.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2000
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Monitoring hole trapping in photoexcited TiO2(110) using a surface photoreaction
Article Abstract:
The role of the saturation of the hole traps in TiO2 is investigated using a simple photochemical surface reaction that detects the transport of holes to the surface of a TiO2(110) single-crystalline substrate. The results indicate that the second-order recombination of electrons and holes is a limiting factor in determining the rate of photooxidation processes that occur on TiO2.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2005
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