A transmission electron microscope study of the structure of electrolytic nickel

E. Suoninen, Tero Hakkarainen

Research output: Contribution to journalArticleScientificpeer-review

12 Citations (Scopus)

Abstract

In conclusion, during the electrolysis of nickel from acid sulphate solutions, the coverage of the cathode by a possible colloidal film of nickel hydroxide is the decisive factor. In its presence, the cathode exhibits a very fine-grained, randomly oriented structure. If the film is removed, the structure consists at these current densities of relatively large grains with a very strong texture [100] perpendicular to cathode. The large grains are often twinned, but no individual stacking faults are found.

The inhibitive action of the hydroxide film can be eliminated by chloride ions [2], or it can be replaced by an organic additive [3].

Original languageEnglish
Pages (from-to)446 - 448
Number of pages3
JournalJournal of Materials Science
Volume3
Issue number4
DOIs
Publication statusPublished - 1968
MoE publication typeA1 Journal article-refereed

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Nickel
Cathodes
Electron microscopes
Stacking faults
Electrolysis
Sulfates
Chlorides
Current density
Textures
Ions
Acids
hydroxide ion

Cite this

Suoninen, E. ; Hakkarainen, Tero. / A transmission electron microscope study of the structure of electrolytic nickel. In: Journal of Materials Science. 1968 ; Vol. 3, No. 4. pp. 446 - 448.
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A transmission electron microscope study of the structure of electrolytic nickel. / Suoninen, E.; Hakkarainen, Tero.

In: Journal of Materials Science, Vol. 3, No. 4, 1968, p. 446 - 448.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Hakkarainen, Tero

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AB - In conclusion, during the electrolysis of nickel from acid sulphate solutions, the coverage of the cathode by a possible colloidal film of nickel hydroxide is the decisive factor. In its presence, the cathode exhibits a very fine-grained, randomly oriented structure. If the film is removed, the structure consists at these current densities of relatively large grains with a very strong texture [100] perpendicular to cathode. The large grains are often twinned, but no individual stacking faults are found.The inhibitive action of the hydroxide film can be eliminated by chloride ions [2], or it can be replaced by an organic additive [3].

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