Passivation of Titanium Metal

A quick video on titanium and passivation electrochemistry that makes it a bad anode if used without further treatment.

For more information on the science, check out the site at: http://sites.google.com/site/nurdrage/chemistry-experiments/passivation-of-ti...

Category:

Science & Technology

Tags:

• Titanium
• electrochemistry
• science
• anode
• cathode
• hho
• hydrogen
• oxygen
• chlorate
• perchlorate
• electrolysis
• electroplating
• corrosion
• passivation

[BlackDogSociety]

You should use MMO coated Ti or Ni anodes and platinum cathodes for the electrolysis of water. The MMO coating aids in the formation of O2 while the platinum aids the formation of H2. Commercial electrolyzers use this method to improve production. The MMO coating is made of oxides of metals such as manganese, tungsten and ruthenium, according to what I've read...

[NurdRage]

oh electrolyzing water is just a demonstration. The video was about showing how titanium passivates if used as an anode.

i'll be doing electrolysis in a later video

[BlackDogSociety]

Good, maybe you can demonstrate how to make a MMO coating too...

[NurdRage]

sorry, ruthenium is too expensive

[nyarvin]

What people usually mean by passivation is something different from what this video shows, which is normally called anodizing. Passivation is where you, for instance, put stainless steel in a citric acid solution in order to remove iron-rich spots on its surface and improve its rust resistance. Or it can mean a process to reduce the catalytic activity of the surface, as in preparing aluminum tanks to hold hydrogen peroxide.

[NurdRage]

Passivation can be done by anodizing, but not all anodizing leads to a passive surface.

i'm demonstrating in this video the blocking of current due to an inert layer of titanium dioxide forming, passivation.

While it is anodizing, giving this a title of anodization would be more misleading because that's not the objective.

Kind of like drag racing, it's true that it's "combustion of gasoline" but that's not the objective, better title is "drag racing" or even "organ donor tryouts"

[TrueDestined]

OMFG NO GLOVES"!!!

[joeylawn36111]

I reccomend smoothing the cut edges with a file - they're razor sharp....

[aterack833]

try iridum

[mrpin3appl3]

Woah, platinum? I Wonder how much copper that is...

[everysnakesdream22]

I say to myself, ok 11 more nurdrage videos then I am off the computer, but yet I keep on adding more! YOU ARE JUST TOO AWESOME TO ABANDON!

[instrkt]

Found your passivation of titanium metal very interesting, I want to coat titanium

electrodes (perhaps Ti foil) with platinum, any guidance will be much appreciated. 

[BCQD4]

HEY where do you get your platinum and titanium strips???

[orangechicken210]

@angeloflove75 Yes, because everything on T.V. is correct....

[angeloflove75]

@orangechicken210 well maybe there are but i said it like that cus thas how they call it,i think i saw that in discovery channell.