Promoting effect of Ce0(sub 2) in combustion synthesized Pt/CeO(sub 2) catalyst for CO oxidation
Article Abstract:
A 1 percent Pt/CeO(sub 2) catalyst prepared by the solution combustion method shows a higher catalytic activity for CO oxidation by O2 compared to Pt metal particles. Structural studies show that Pt ions in the catalyst are substituted for Ce(super 4+) ions in the form of Ce(sub 1-x)Pt(sub x)O(sub 2-delta), creating oxide ion vacancies leading to a strong Pt(super 2+)-CeO(sub 2) interaction that is responsible for higher catalytic activity.
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:
Kinetic Monte Carlo study of submonolayer heteroepitaxial growth comparing Cu/Ni and Pt/Ni on Ni(100)
Article Abstract:
The surface patterns formed during submonolayer Cu/Ni and Pt/Ni heteroepitaxy upon a Ni(100) substrate is investigated by kinetic Monte Carlo (KMC) simulations. The two-dimensional (2D) KMC simulations are based upon rate constants for a complete nearest-neighbor set of 729 uncorrelated Cu or Pt atoms and/or Ni site-to-site hopping mobilities.
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:
XPS and XASF Pt L(sub 2,3)-edge studies of dispersed metallic Pt and PtSn clusters of SiO(sub 2) obtained by organometallic synthesis: structural and electronic characteristics
Article Abstract:
A well-defined silica-supported Pt and PtSn catalysts are prepared by surface organometallic reactions and are characterized by EXAFS-XANES at the Pt L(sub 2,3) edge and XPS of the Pt 4f and Sn 3d levels is reported. These catalysts are tested in the catalytic hydrogenation of cinnamaldehyde in the liquid phase.
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:
- Abstracts: Surface sites of Pd/CeO (sub 2)/Al (sub 2) O (sub 3) catalysts in the partial oxidation of propane. Abstraction of oxygen from dioxygen on Al(111) revealed by resonant multiphoton ionization laser spectrometry
- Abstracts: Comparison of water-soluble CdTe nanoparticles synthesized in air and in nitrogen. Full-Color emission and temperature dependence of the luminescence in poly-p-phenylene ethynylene_znsimn2+ composite particles
- Abstracts: Effect of Co-MCM-41 conversion to cobalt silicate for catalytic growth of single wall carbon nanotubes. Phenomenological theory of low-voltage electroporation: electric field calculations
- Abstracts: Desorption of the C(sub 2)(super-) anion from the Au-C-deposited Y2O3-stabilized ZrO2 surface. EIS and ac-electrogravimetry study of PB films in KCI, NaCl, and CsCl aqueous solutions
- Abstracts: Spectroscopy and femtosecond dynamics of type-II CdSe/ZnTe core-shell semiconductor synthesized via the CdO precursor