Electrochemistry at Well‐Characterized Bimetallic Surfaces

Platinum Systems Electrodeposited in the Presence of Iron or Palladium on a Gold Surface Effectively Catalyze Oxygen Reduction Reaction

“…Platinum is the most active material and the main component in catalysts employed in fuel cells for low-temperature operation. − Unfortunately, the scarcity of this metal is a key factor preventing production of fuel cells on a large commercial scale. ,,− In order to accelerate ORR and reduce the cost of catalysts, the preparation and characterization of platinum alloys with other noble or transition metals have been the focus of extensive research. − Even with platinum catalysts, higher cathodic overpotentials in the range of 500–600 mV are required in order to achieve useful current densities in fuel cells, revealing the slow kinetics of ORR in acid solutions …”

Development of Advanced Electrocatalyst for Automotive Polymer Electrolyte Fuel Cells

“…Evolution of analysis and characterization techniques has greatly contributed to understanding critical parameters that affect performance of electrocatalysts. Especially, investigations using well-defined single-crystalline electrodes have provided many insights into relationship between surface structure and electrochemical characteristics (34)(35)(36). However, there is still a lack of understanding of nanoparticle design that ensures every required performance, i.e.…”

Second Order Dependence on the Surface Fraction of Pt in Pt—Ruadatom of the Oxidation of 2-PrOH in Base

“…1 The most widely adopted strategy to reduce the overpototential for the MOR is to incorporate oxophillic metals, such as Ru, into the catalyst. 3,4 These sites form surface oxides at lower potentials, in effect lowering the overpotential required to strip CO from the surface and enhancing MOR kinetics via the bifunctional mechanism. 5 In contrast to the MOR, adsorbed CO is not observed during electrooxidation of 2-propanol.…”