New analysis of oxidation state and coordination environment of copper ion-exchanged in ZSM-5 zeolite
Article Abstract:
Research was conducted to examine the changes in the structure and electronic state of copper ion species during the heat treatment of copper ion-exchanged ZSM-5 zeolite as well as the interaction with CO molecules. The methodologies used included electron spin resonance, infrared and emission spectroscopy, X-ray absorption fine structure, an extended X-ray absorption fine structure and through the calculations of adsorption and adsorption isotherm. Results indicate that there are at least two kinds of sites in the copper ion-exchanged ZSM-5 zeolite.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1999
User Contributions:
Comment about this article or add new information about this topic:
CH4/CD4 isotope effect and the mechanism of partial oxidation of methane to synthesis gas over Rh/gamma-Al2O3 catalyst
Article Abstract:
Pulse istope effect experiments for the partial oxidation of CH4 (CD4) to synthesis gas over Rh/gamma-Al2O3 catalysts, along with CH4 pulse experiments over the same catalysts, show that the mechanism of oxidation depends on the loading of the catalyst and the reaction temperature.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1999
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Theory of thin layer photoacoustic cells for determination of volume changes in solution. Elastic and inelastic electron tunneling in alkane self-assembled monolayers
- Abstracts: Surface-treated activated carbons as catalysts for the dehydration and dehydrogenation reactions of ethanol. Dynamic states of V2O5 supported on SnO2/SiO2 and CeO2/SiO2 mixed-oxide catalysts during methanol oxidation
- Abstracts: Computer simulation studies on the polymer-induced modification of water properties in polyacrylamide hydrogels
- Abstracts: A new phase of hydroquinone and its thermodynamic properties. Melting and phase space transitions in small ionic clusters
- Abstracts: An extended in situ Cu-K XAFS and XRD study on the site preference and valence of copper ions in (Mg1-xCux)O. Fabrication and characterization of CdS-nanoparticle mono- and multilayers on a self-assembled monolayer of alkanedithiols on gold