Surface structure effects of electrocatalytic conversion of ethane on Pt single crystal electrodes

Determining the potential-dependent identity of methane adsorbates at Pt electrodes using EC-MS

“…Overall, the minimal variation in N value with potential suggests that *CO is the dominant intermediate formed from methane, even at potentials as low as 0.25 V. While this oxygenation occurs at potentials where *OH is thought to be absent from the surface, 54 previous reports also suggest the formation of oxygenates at similarly reductive potentials. 10,16,22–24,28,30,31,55,56 We attribute the formation of *CO at these driving forces to the strength of the Pt–CO bond. This observation is supported by previous DFT calculations, which showed that *CO is the most stable intermediate in the total methane oxidation pathway for applied potentials between 0.17 and 0.6 V. 28 We hypothesize that formation of strongly bound CO provides the driving force to facilitate the rapid dehydrogenation and oxygenation of methane.…”

Unraveling the electrocatalytic reduction mechanism of enols on copper in aqueous media

“…1a–c is assigned to the electrooxidation of ethylene and ethane on polycrystalline Pt. It was reported that both ethylene 22 , 23 and ethane 24 , 25 exhibits a broad oxidation potential window with two primary oxidation peaks starting from ca. 0.4 to 1.5 V vs. RHE on Pt in acidic media.…”