Structural and electrochemical characterization of binary, ternary, and quaternary platinum alloy catalysts for methanol electro-oxidation
Article Abstract:
A study was conducted to analyze the structural and electrochemical characterization of binary, ternary and quaternary platinum alloy catalysts for methanol electro-oxidation. The platinum and platinum alloy samples were prepared by arc-melting pressed pellets of platinum, ruthenium, osmium and iridium powders. Results indicated that the catalysts supported a nanocrystalline face-centered cubic phase. Findings also showed that the addition of iridium accelerated the activation of the C-H bonds in methanol.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1998
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Characterization of the Mn oxidation states in photosystem II by K-beta X-ray fluorescence spectroscopy
Article Abstract:
Research was conducted to examine the nature of the Mn oxidation states involved in photosynthetic oxygen evolution using K-beta X-ray fluorescence spectra since studies using X-ray absorption and electron paramagnetic resonance spectroscopy has always been controversial. The alternative method has been recorded on the dark-adapted S1 state and the hydroquinone-reduced state. Results are compatible with models involving the conversion of Mn(III)2Mn(IV)2 to Mn(II)2Mn(IV)2 clusters.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1998
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Active states of Pd and Cu in carbon-supported Wacker-type catalysts for low-temperature CO oxidation
Article Abstract:
Research into carbon-supported Wacker-type catalysts that show high activities in CO oxidation at ambient temperatures is presented. The active states of palladium and copper were a molecular Pd(II) species coordinated with chlorine ion and Cu(II) compounds.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2000
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