38 research outputs found
Influence of the reactant concentration in selective hydrogenation of 1,3-butadiene over supported gold catalysts under alkene rich conditions: A consideration of reaction mechanism
Full text linkMonodispersed Pd Nanoparticles for Acetylene Selective Hydrogenation: Particle Size and Support Effects
Full text linkDeactivation resistant Pd-ZrO2 supported on multiwall carbon nanotubes catalyst for direct formic acid fuel cells
No full textOne of the main problems of palladium based catalysts for a direct formic acid fuel cell (DFAFC) is their low stability during a long-term operation. In these studies, the Pd-ZrO2 catalyst supported on the multiwall carbon nanotubes (MWCNTs) was prepared and thermo-chemically treated. These catalysts were tested in a fuel cell for formic acid electrooxidation, and their chemical composition and structure were characterised by the XPS, STEM, HR-TEM and XRD techniques. It was found that the Pd-ZrO2/MWCNTs catalyst after synthesis causes oscillations of the cell voltage during operation resulting in significantly higher deactivation resistance than that of Pd/MWCNTs. This may be attributed to the "self-cleaning" mechanism of poisoned Pd catalyst by carbon monoxide through the electrochemical oxidation of COads (adsorbed) to CO2 (gas)
Effect of phase composition of palladium-ruthenium membrane catalyst on selectivity of dehydrolinalool hydrogenation
No full textStructure sensitivity of selective acetylene hydrogenation over the catalysts with shape-controlled palladium nanoparticles
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Pressure and Temperature Effects on the Formation of a Pd/C Surface Carbide: Insights into the Role of Pd/C as a Selective Catalytic State for the Partial Hydrogenation of Acetylene
No full textPd/Fiber glass and Pd/5% γ-Al2O3/Fiber glass catalysts by surface self-propagating thermal synthesis
No full textThe influence of a second metal component (Cu, Sn, Fe) on Pd/SiO2 activity in the hydrogenation of 2,4-dinitrotoluene
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