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

Electrochemical study on the adsorption of carbon oxides and oxidation of their adsorption products on platinum group metals and alloys

“…28 The way of treating the EQCM data was similar to that described earlier. 99,100 3. Results and discussion the current is cathodic.…”

“…Nevertheless, a proper application of the EQCM method coupled with careful data treatment can provide invaluable information regarding various processes occurring at the solid/ liquid interface. 90 Although this technique has already been applied to the studies on CO adsorption on Pt or Pt-Ru alloys, 15,78,[96][97][98] only a few papers 99,100 are devoted to other electrode materials as well as to the comparison between CO adsorption and CO 2 reduction. As a result, no clear interpretation of the EQCM data for these processes exists in the literature.…”

Comparative EQCM study on electrooxidation of carbon oxides adsorption products on noble metals and their alloys. Polycrystalline Pd-based systems

“…Among the methods applied in the investigations of CO 2 adsorption, the electrochemical quartz crystal microbalance belongs to rather rarely used ones [103]. It might seem surprising since this technique has already been successfully employed in the studies on various electrode processes.…”

“…In fact, the EQCM is a kind of a non-selective sensor that responds to its nearest environment on the nano-scale [104]. In our recent report [103] we have concluded that in the case of CO 2 /CO adsorption the EQCM signal is also affected by the non-mass effects including changes in metal-solution interactions and variation of solution density and viscosity in the vicinity of the electrode. In the present work we have aimed to verify the possibility of the EQCM application to the examination of the nature of the products of CO 2 reduction on noble metals and their alloys.…”

Sonochemical synthesis of graphene oxide supported Pt–Pd alloy nanocrystals as efficient electrocatalysts for methanol oxidation

“…The absence of large currents close to the negative potential limit due to the absorption of hydrogen is a clear indication of alloy formation. In fact, hydrogen electrosorption at Pt-Pd alloys has been intensively investigated by Czerwiński and coworkers [42][43][44][45]. Only alloys with a Pd at% higher that 65-70 % are capable of absorbing substantial amounts of hydrogen.…”