Kinetics studies of oxygen reduction in acid medium on novel semiconducting transition metal chalcogenides

Platinum and Non‐Platinum Nanomaterials for the Molecular Oxygen Reduction Reaction

“…[48,[75][76][77][78][79][80][81][82][83] The ORR analysis on non-supported thin layers of Ru x Se y have generally shown small amounts (< 4 %) of released hydrogen peroxide. [84] The same level was found on carbon-supported material (mass loading of 28 mg cm À2 ). [85] A recent report on carbon-supported ruthenium-selenide has shown that the release of hydrogen peroxide increases with the catalyst loading decrease.…”

On the Structure of Carbon‐Supported Selenium‐Modified Ruthenium Nanoparticles as Electrocatalysts for Oxygen Reduction in Fuel Cells

“…Therefore, numerous research groups have evaluated the substitution of Pt by Ru as a catalytically less active but cheaper and more consistently available alternative. [2][3][4] Alonso-Vante et al discovered that the activity of Ru-based catalysts can be significantly enhanced by selenium. [5] Moreover, Se-modified materials also feature superior methanol tolerance.…”

Microwave Assisted Synthesis of Osmium Electrocatalysts for the Oxygen Reduction Reaction in the Absence and Presence of Aqueous Methanol

“…It can be observed a slight separation between plots in the absence and presence of methanol, a behavior expected from the linear sweep voltammograms. The differences between the experimental and theoretical Koutecky-Levich plots may result from the exposed catalytically active area of the materials, which might be higher than the geometric ones [19]. The current-potential curves were corrected by the procedure described by Gojković et al [20]; these curves, in turn, yielded the mass-corrected Tafel plots for the ORR in the absence and presence of methanol presented in Figure 7.…”