Rh electrodeposition on Pt in acidic medium: a study using cyclic voltammetry and an electrochemical quartz crystal microbalance

CO and methanol electrooxidation on Pt/Ir/Pt multilayers electrodes

“…Besides, the voltammetric profile of polycrystalline Pt is recovered indicating that the electrode surface is composed by Pt atoms. This proposition was also confirmed by previous paper where we used XPS technique to determine the surface composition for the Pt/Ru/Pt [11] and Pt/Rh/Pt [13] layers.…”

“…Otherwise, this mechanism cannot be used in the present case, once the exposed to the solution layer is composed only by Pt atoms as concluded from Fig. 1 and our previous papers [11,13].…”

“…Still using a theoretical approach, Neurock et al studied the dehydrogenation of methanol to CO over Pt (1 1 1) surface [10]. For application in electrocatalysis, to the best of our knowledge, our group was the pioneer in the preparation and characterization of electrochemical properties of metallic multilayers for the oxidation of small organic molecules [11][12][13][14].…”

Electrochemical quartz crystal microbalance study on carbon oxides adsorption in the presence of electrosorbed hydrogen on Pd alloys with Pt and Rh

“…In general, the EQCM response for noble metals and their alloys under conditions of an cyclic voltammetric experiment can be affected by several factors [46][47][48][49][65][66][67][68][69][70][71][72][73][74][75][76][77][78][79][80][81][82]: (a) mass changes connected with electrosorption of hydrogen (both adsorption and absorption) and oxygen (surface oxide formation), (b) mass changes connected with the electrochemical dissolution and subsequent redeposition of metals, (c) mass changes connected with specific adsorption of ions and adsorption of water molecules, (d) changes in density and viscosity of the solution layer adjacent to the electrode surface caused by non-specific adsorption of ions and changes in interactions between electrode surface and solution, (e) stresses in metal lattice during hydrogen absorption and surface oxide formation, (f) effects connected with the changes in the electrode roughness.…”

ATR-SEIRAS study of CO adsorption and oxidation on Rh modified Au(111-25 nm) film electrodes in 0.1 M H2SO4

“…Rh films (or clusters) deposited on various substrates also display high electrochemical activity [23][24][25][26][27]. Vukovic studied the electrochemical behavior of thin Rh film galvanostatically deposited on titanium and demonstrated that their electrochemically active surface area depends on the current density and electrodeposition time [28].…”