What Chemical Reactions Occur During Anodization at 100V?

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Discussion Overview

The discussion revolves around the chemical reactions occurring during the anodization process at a voltage of 100V, specifically in the context of fabricating nanotube layers on titanium foil. Participants explore the effects of high voltage on the anodization process and the resulting phenomena observed, such as heating and bubbling in the electrolyte.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant describes an experiment where anodization at 100V caused the electrolyte to heat up and bubble, attributing this to high voltage leading to high power and heat.
  • Another participant questions the clarity of the term "spume" and requests a clearer description of the observed phenomenon.
  • A later reply clarifies that the term "boil" is more appropriate and confirms the anodization of titanium foil.
  • One participant inquires about the current used during anodization to better understand the power involved.
  • Another participant suggests that lower voltages, such as 12V, are more suitable for anodizing aluminum and mentions that titanium anodization can also occur quickly.

Areas of Agreement / Disagreement

Participants express differing views on the appropriate voltage for anodization and the implications of high voltage on the process. There is no consensus on the specific chemical reactions occurring during anodization at 100V.

Contextual Notes

Participants have not provided detailed information on the specific chemical reactions involved in anodization at high voltages, and there are unresolved questions regarding the current used and its impact on the process.

Who May Find This Useful

Individuals interested in anodization processes, particularly in the context of titanium and aluminum, as well as those exploring the effects of voltage on chemical reactions in electrochemical applications.

ralden
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Hi to everyone, actually i 'm conducted an experiment in fabrication of nanotubes layer in metal by anodization that varies with voltage, when my last sample undergo an anodization at 100 V the electrolyte heat up and started to spume.. my adviser ask me what happen to the last sample? then i answered that it because of high voltage.. that correspond to high power.. that results to heat... (the main reason on spuming) but he doubted, he said it's something about the chemical reaction of the anodization.. please tell me what happen on chemical reaction in anodization thank you.
 
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Hi ralden. The word "spume" is used very little in everyday English. Most people won't understand what you mean. Can you describe it more clearly and using some other words?

Were you anodizing aluminium sheet?
 
Sorry for the term i think the better word is "boil" ... i anodized Titanium foil
 
What was the current? That's how you'll know what the power was.
 
12 volts is better for aluminum. Titanium too. The clips used in commercial anodizing of aluminum parts are titanium clips. They never get too much coating. With Ti it happens quickly too.
 

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