Au-Fe system: application in electro-catalysis

Formation of nanostructured porous Cu-Au surfaces: the influence of cationic sites on (electro)-catalysis.

The fabrication of nanostructured bimetallic materials through electrochemical routes offers the ability to control the composition and shape of the final material that can then be effectively applied as (electro)-catalysts. In this work a clean and transitory hydrogen bubble templating method is employed to generate porous Cu-Au materials with a highly anisotropic nanostructured interior. Sign...

Application of the Electro-Fenton Process Including Fe+2 and Fe+3 Heterogeneous Catalysts to Remove Ciprofloxacin from Aqueous Solutions

Background and Objectives: Ciprofloxacin is an emerging and degradable pollutant that cannot be efficiently removed by common water and wastewater treatment processes. Electro-Fenton process is one of the most effective processes for the treatment of these compounds. Hence, the present study aimed to remove ciprofloxacin by Electro-Fenton method with heterogeneous catalysts, Fe+2 and Fe+3. Mat...

Ligand effects in homogeneous Au catalysis.

ion agent (entry 4). Echavarren examined the intramolecular hydroarylation of alkynes with indoles, observing that the regioselectivity (formal 7-exo-dig vs 8-endo-dig) of the cyclization is highly dependent upon the catalytic Au source (Table 8). In the cyclization of 37, Ph3PAuCl/AgSbF6 resulted in little discrimination between the pathways leading to 38 and 39 (entry 4). Remarkably, AuCl and...

Autonomous Repair Mechanism of Creep Damage in Fe-Au and Fe-Au-B-N Alloys

The autonomous repair mechanism of creep cavitation during high-temperature deformation has been investigated in Fe-Au and Fe-Au-B-N alloys. Combined electron-microscopy techniques and atom probe tomography reveal how the improved creep properties result from Au precipitation within the creep cavities, preferentially formed on grain boundaries oriented perpendicular to the applied stress. The s...

Spin-dependent transport in Fe and Fe/Au multilayers