The anodic behaviour of tin in sulphuric acid solutions

Timo Laitinen, K. Salmi, Göran Sundholm (Corresponding Author), P. Viinikka, Arto Yli-Pentti

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

The anodic dissolution and partial passivation of tin in 4.5–8 M sulphuric acid solutions has been studied using rotating ring—disk voltammetry. In the region of active dissolution a Tafel slope of 1/(30 ± 3) mV−1 was measured. This value was found to be independent of acid concentration. A reaction mechanism is presented to explain this slope. It was found that tin dissolves both in the active and partly passive potential region in the form of bivalent tin. Oxidation to the tetravalent state seems to occur only at high anodic potentials. Oxygen evolution starts only at potentials above 3 V (vs. Hg2SO4/Hg). Analysis of the passivating film formed on the electrode surface using SEM, XRD, XPS and SIMS showed that the film is mainly tin oxide, SnO, mostly in an amorphic form.
Original languageEnglish
Pages (from-to)1797-1803
Number of pages7
JournalElectrochimica Acta
Volume37
Issue number10
DOIs
Publication statusPublished - 1992
MoE publication typeA1 Journal article-refereed

Fingerprint

Tin
Acids
Dissolution
Voltammetry
Secondary ion mass spectrometry
Tin oxides
Passivation
X ray photoelectron spectroscopy
Oxygen
Oxidation
Scanning electron microscopy
Electrodes

Cite this

Laitinen, T., Salmi, K., Sundholm, G., Viinikka, P., & Yli-Pentti, A. (1992). The anodic behaviour of tin in sulphuric acid solutions. Electrochimica Acta, 37(10), 1797-1803. https://doi.org/10.1016/0013-4686(92)85083-W
Laitinen, Timo ; Salmi, K. ; Sundholm, Göran ; Viinikka, P. ; Yli-Pentti, Arto. / The anodic behaviour of tin in sulphuric acid solutions. In: Electrochimica Acta. 1992 ; Vol. 37, No. 10. pp. 1797-1803.
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abstract = "The anodic dissolution and partial passivation of tin in 4.5–8 M sulphuric acid solutions has been studied using rotating ring—disk voltammetry. In the region of active dissolution a Tafel slope of 1/(30 ± 3) mV−1 was measured. This value was found to be independent of acid concentration. A reaction mechanism is presented to explain this slope. It was found that tin dissolves both in the active and partly passive potential region in the form of bivalent tin. Oxidation to the tetravalent state seems to occur only at high anodic potentials. Oxygen evolution starts only at potentials above 3 V (vs. Hg2SO4/Hg). Analysis of the passivating film formed on the electrode surface using SEM, XRD, XPS and SIMS showed that the film is mainly tin oxide, SnO, mostly in an amorphic form.",
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Laitinen, T, Salmi, K, Sundholm, G, Viinikka, P & Yli-Pentti, A 1992, 'The anodic behaviour of tin in sulphuric acid solutions', Electrochimica Acta, vol. 37, no. 10, pp. 1797-1803. https://doi.org/10.1016/0013-4686(92)85083-W

The anodic behaviour of tin in sulphuric acid solutions. / Laitinen, Timo; Salmi, K.; Sundholm, Göran (Corresponding Author); Viinikka, P.; Yli-Pentti, Arto.

In: Electrochimica Acta, Vol. 37, No. 10, 1992, p. 1797-1803.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - The anodic behaviour of tin in sulphuric acid solutions

AU - Laitinen, Timo

AU - Salmi, K.

AU - Sundholm, Göran

AU - Viinikka, P.

AU - Yli-Pentti, Arto

PY - 1992

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AB - The anodic dissolution and partial passivation of tin in 4.5–8 M sulphuric acid solutions has been studied using rotating ring—disk voltammetry. In the region of active dissolution a Tafel slope of 1/(30 ± 3) mV−1 was measured. This value was found to be independent of acid concentration. A reaction mechanism is presented to explain this slope. It was found that tin dissolves both in the active and partly passive potential region in the form of bivalent tin. Oxidation to the tetravalent state seems to occur only at high anodic potentials. Oxygen evolution starts only at potentials above 3 V (vs. Hg2SO4/Hg). Analysis of the passivating film formed on the electrode surface using SEM, XRD, XPS and SIMS showed that the film is mainly tin oxide, SnO, mostly in an amorphic form.

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DO - 10.1016/0013-4686(92)85083-W

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JO - Electrochimica Acta

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Laitinen T, Salmi K, Sundholm G, Viinikka P, Yli-Pentti A. The anodic behaviour of tin in sulphuric acid solutions. Electrochimica Acta. 1992;37(10):1797-1803. https://doi.org/10.1016/0013-4686(92)85083-W