Surface sites of Pd/CeO (sub 2)/Al (sub 2) O (sub 3) catalysts in the partial oxidation of propane
Article Abstract:
Propone oxidation was studied on a Pd-supported Al (sub 2) O (sub 3) catalyst promoted by ceria, when this ceria was first grafted as a monolayer over alumina. The reaction proceeded under different feed conditions, and the surface sites were identified by X-ray photoelectron spectroscopy in a pretreatment chamber and then compared to temperature-programmed desorption, temperature programmed surface reaction, and the catalytic results, in the presence and absence of water.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2003
User Contributions:
Comment about this article or add new information about this topic:
Abstraction of oxygen from dioxygen on Al(111) revealed by resonant multiphoton ionization laser spectrometry
Article Abstract:
A demonstration on the operation of an abstraction channel in the chemisorptions of O2 on Al(111) is presented. The study concluded that in the O2/Al(111) interaction ordinary chemisorptions is hampered because of the slow spin transition whereas the abstraction channel is open due to the large oxygen atom binding energy to Al(111), in contract to transition-metal surfaces.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2004
User Contributions:
Comment about this article or add new information about this topic:
Kinetic study of the quenching reaction of singlet oxygen by flavonoids in ethanol solution
Article Abstract:
The quenching rate of singlet oxygen by seven kinds of flavonoids with 2,3-double bonds is measured spectrophotometrically in ethanol at 35 degree Celsius. The overall rate constants increased as the number of OH groups substituted to the flavone skeleton increases.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2005
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Photoelectrochemical properties of Fe(sub 2)O(sub 3)-Nb(sub 2)O(sub 5) films prepared by sol-gel method. Electrokinetic measurements reveal interfacial charge at polymer films caused by simple electrolyte ions
- Abstracts: Synthesis of C(sub 59)H(sub x) and C(sub 58)H(sub x) fullerenes stabilized by hydrogen
- Abstracts: Vanadium-51 MAS and static NMR studies of the binary V(sub 2)O(sub 5)-WO(sub 3) system. Characterization of Ca-Bi-Mo oxide catalyst for selective propane ammoxidation using XRD, XPS, TPRX/TPRO and IR/Raman
- Abstracts: Osmotic coefficients and surface tensions of aqueous electrolyte solutions: role of dispersion forces. Light, Neutron, X-ray scattering, and conductivity measurements on aqueous dodecyltrimethylammonium bromide/1-hexanol solutions
- Abstracts: Molecular clusters of binary and ternary mercury chalcogenides: colloidal synthesis characterization, and optical spectra