Effect of the absorption of hydrogen by nickel on its anodic dissolution and corrosion in acidic solutions

Skuratnik, Ya. B.; Kozachinskii, A. E.; Pchel'nikov, A. P.; Losev, V. V.

doi:10.1016/0022-0728(93)03108-2

Cited by 13 publications

(2 citation statements)

References 10 publications

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“…This shows that a substantial part of hydrogen is strongly bound by iron (trapped hydrogen) and, as a result, high C and θ are retained for a long time (probably, for several hours). Such an effect was observed also for dissolution of hydrated nickel [4]. Diffusible hydrogen desorbs from the membrane in several tens of seconds; hence, when polarization of its absorbing side is stopped, E cor sharply shifts.…”

Section: The Effect Of Hydrogen Absorbed By Metal On the Corrosion Pomentioning

confidence: 66%

The effect of sorbed hydrogen on the corrosion potential of iron in acidic sulfate solutions

Nenasheva

Маршаков

2005

Prot Met

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Section: The Effect Of Hydrogen Absorbed By Metal On the Corrosion Pomentioning

confidence: 66%

The effect of sorbed hydrogen on the corrosion potential of iron in acidic sulfate solutions

Nenasheva

Маршаков

2005

Prot Met

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“…However, it is important to notice that the onset of the CO oxidation in Figure 6A and 6B coincided with the potential (> 0.95 V vs RHE) where the desorption of sulfates anions and the adsorption of OH species on the gold electrodes at the pH investigated has been reported. [47][48][49] Therefore, we propose here that the Pt nanoclusters obtained by the phosphate-mediated adsorption of cisplatin on gold are not active towards the CO oxidation on their own. The CO oxidation only takes place at overpotentials where OH replaces the adsorbed phosphate on the gold surface.…”

Section: Electrochemical Oxidation Of Carbon Monoxide On Ultrasmall Lmentioning

confidence: 89%

Phosphate-mediated electrochemical adsorption of cisplatin on gold electrodes

Kolodziej

Figueiredo

Koper

et al. 2017

Electrochimica Acta

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Research HighlightsThe potential-dependent adsorption and deposition of cisplatin on polycrystalline gold electrode is mediated by the adsorption of phosphate anions on gold electrode. Quantitative analysis suggests that the stoichiometry of the phosphate species and the cisplatin adsorbed was 1:1. Upon reduction of the phosphate-mediated cisplatin adsorption, the platinum deposits are formed by 3D nanoclusters AbstractThis manuscript reports the potential-dependent adsorption and deposition of cisplatin on polycrystalline gold electrode. It was found that this process is mediated by the adsorption of phosphate anions on the gold electrode and that the maximum coverage of Pt adsorbed is given by the maximum coverage of phosphate adsorbed at a given potential. The interaction of 2 cisplatin with the phosphate groups was confirmed by in situ FTIR spectroscopy under external reflexion configuration. Quantitative analysis suggests that the stoichiometry of the phosphate species and the cisplatin adsorbed was 1:1. Moreover, the relationship between the charge of the Pt deposited and the charge of the electrochemical surface area of the Pt deposited on the gold electrodes indicates that 3D nanoclusters of a few atoms of Pt were formed over the gold electrode upon the electrochemical reduction of the adsorbed cisplatin.The Pt nanoclusters formed under these conditions were later evaluated for the oxidation of a monolayer of carbon monoxide. The Pt nanoclusters showed a high overpotential for the oxidation of this carbon monoxide monolayer and this high oxidation overpotential was attributed to the absence of adsorption sites for OH species on the Pt clusters: only at potentials where the OH species are adsorbed at the edge between the Pt nanocluster and the gold support, the oxidation of the carbon monoxide on the Pt nanoparticles takes place. Graphical Abstract

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The kinetics of the hydrogen evolution reaction at nickel electrodes

Tamm

1995

Research in Chemical Kinetics

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Effect of the absorption of hydrogen by nickel on its anodic dissolution and corrosion in acidic solutions

Cited by 13 publications

References 10 publications

The effect of sorbed hydrogen on the corrosion potential of iron in acidic sulfate solutions

The effect of sorbed hydrogen on the corrosion potential of iron in acidic sulfate solutions

Phosphate-mediated electrochemical adsorption of cisplatin on gold electrodes

The kinetics of the hydrogen evolution reaction at nickel electrodes

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