The pivotal role of metal/oxide interfaces has been recognized in several catalytic processes. For example, Cu/ZnO/Al2O3and Cu/CeOxare highly active for methanol synthesis7; ZnPd/ZnO leads to high CO2selectivity in methanol steam reforming8; Cu/CeOx(ref.9), Au/CeOx(ref.10), Pt/CeOx(...
In this work, we performed infrared spectroscopic studies of the reaction of poly(acrylic acid) (PAA) and metal oxides (ZnO, CaO, CuO, Cr 2 O 3 , and Al 2 O 3 ). Factors such as the amount of metal oxide, reaction time, solvents, the kind of metal oxides, and temperature were ...
Iridium oxide (IrO2) is currently the only material that can remain stable under the harsh acidic OER condition, while its progress has been largely impeded by its unsatisfied activities and ultralow-earth abundance14,15,16. Several strategies have been reported to develop complex iridium-based ...
acid polymers whereby the formation of metal oxide is substantially prevented and the amount of hydrolyzable metal compound is sufficient to produce at least 0.5% by weight of metal oxide based upon silica content; and(b) adjusting the pH of the reaction mixture between 1.5-2.5; and then(c) ...
In an acid electrolyte, precious metal-based oxides, such as iridium oxides and ruthenium oxides, are the main targets of nanostructured metal oxide catalysts. Nanostructural control is significant to improve their surface area and mass transport. In a basic electrolyte, transition metal-based oxides...
Since proton accommodation on the surface is most likely due to the high Brnsted basicity of oxygen, our model could be a more general picture for the surface chemistry of metal oxide nanocrystals with important consequences on the chemistry of ligand exchange reactions. 展开 ...
Detailed studies in the past two decades have shown that redox active metals like iron (Fe), copper (Cu), chromium (Cr), cobalt (Co) and other metals undergo redox cycling reactions and possess the ability to produce reactive radicals such as superoxide anion radical and nitric oxide in biol...
Transition Metal Oxide Catalyst for Low Temperature Electrochemical Systems in Acid Media We have reported that partially oxidized group 4 and 5 metal carbonitrides were stable in an acid solution and had a definite catalytic activity for the oxygen reduction reaction (ORR) . We have tried to appl...
to the structures of LixTiO2and LixTiO2-δ, and the enhanced conductivity from 0 to 1 and 40 S/m. This work realizes large-scale and rapid synthesis of flexible TiO2nanofiber films with tunable conductivity and is expected to extend the synthesis to other conductive metal oxide films. ...
It was also found a correlation between the TOF for acetaldehyde or ethyl acetate formation and the ethanol enthalpy of adsorption in the metal oxide. This brings an evidence that the extension of the ethanol dehydrogenation is dependent on the activation of ethanol by the metal oxide and that ...