Abstract
It is shown that the electroreduction of CO proceeds on electrolytic deposits of palladium (edPd) in 0.5 M H2SO4 + (1–5) mM CuSO4 + CO(sat) solutions at the potentials more positive than the Cu2+/Cu equilibrium potential. Among the CO reduction products, methanol and formaldehyde are identified. The current efficiency with respect to CH3OH exceeds 75% on edPd formed in 1% PdCl2+0.5 M H2SO4 solutions. In addition, Cu+ ions, which probably form complexes with CO, are detected in the solution and are assumed to play the role of intermediate species in the mediator catalysis along with copper adatoms.
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Original Russian Text © T.D. Gladysheva, B.I. Podlovchenko, 2006, published in Elektrokhimiya, 2006, Vol. 42, No. 7, pp. 886–889.
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Gladysheva, T.D., Podlovchenko, B.I. Electroreduction of carbon monoxide on palladium electrodeposits in solutions containing copper ions. Russ J Electrochem 42, 798–801 (2006). https://doi.org/10.1134/S1023193506070147
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DOI: https://doi.org/10.1134/S1023193506070147