Complexation effects in the electrodeposition of nickel-zinc alloys
- Univ. of Tulsa, OK (United States)
The nickel-zinc alloy electrodeposition system exhibits a phenomenon known as anomalous codeposition, where the less noble metal (Zn) deposits preferentially to the more noble metal (Ni). One explanation for this behavior is that zinc hydroxide adsorbs to the surface of the electrode and inhibits the electrodeposition of the nickel. This mechanism is being tested through the use of {open_quotes}selective{close_quotes} complexing agents for Ni{sup 2+} and Zn{sup 2+}. The complexation behavior of these ions with citrate, aspartate and pyrophosphate ions is being characterized by potentiometric titration and polarographic measurements. The effect of these complexants on the electrodeposition of the alloys is also being studied.
- OSTI ID:
- 126204
- Report Number(s):
- CONF-950402--
- Country of Publication:
- United States
- Language:
- English
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