NDLI: Anodic behavior of indium in KOH solution

Content Provider	Springer Nature Link
Author	Zhou, Hebing Xu, Mengqing Huang, Qiming Cai, Zongping Li, Weishan
Copyright Year	2009
Abstract	Cyclic voltammetry (CV) and X-ray diffraction (XRD) were used to investigate the anodic behavior of indium in a 3 M KOH solution on both rotating disc-platinum ring and static electrodes. Indium undergoes two processes in concentrated alkaline solution: activation and passivation. In the activation region, soluble, tri-valent indium is the main product, generated by the disproportionation reaction of In(OH)$_{ad}$ in the initial stage, and direct oxidation of indium during the latter stage. The soluble, tri-valent indium accumulates and precipitates as In(OH)$_{3}$ on the electrode surface, inhibiting the oxidation of indium. In the resulting passivation region, the indium under the precipitated In(OH)$_{3}$ is oxidized to In$_{2}$O$_{3}$, which is more stable than In(OH)$_{3}$, and prevents further oxidation of the indium.
Starting Page	1739
Ending Page	1744
Page Count	6
File Format	PDF
ISSN	0021891X
Journal	Journal of Applied Electrochemistry
Volume Number	39
Issue Number	10
e-ISSN	15728838
Language	English
Publisher	Springer Netherlands
Publisher Date	2009-03-21
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Indium Alkaline solution Anodic behavior Rotating ring-disc electrode Mechanism Industrial Chemistry/Chemical Engineering Physical Chemistry Electrochemistry
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Chemical Engineering Electrochemistry

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