Understanding Oxygen Pump Function | NGK 2008 News and Image

[physea]

hello!

I want to know how oxygen pumps work.

This photo displays one: http://www.ngk.co.jp/english/news/2008/image/0611_04.gif
from: http://www.ngk.co.jp/english/news/2008/0611.html

My question is, in order to pump the oxygen, does the oxygen have to go through the platinum electrode? or we can apply voltage to zirconia and have the oxygen pumped?

thanks!

 

[HAYAO]

lol the website says Zr is a rare Earth metal. That is such a confusing way to say Zr is rare.

I think you are confusing oxygen anion and oxygen molecules.

 

[Borek]

the website says Zr is a rare Earth metal. That is such a confusing way to say Zr is rare.

Nothing confusing here (and no, they don't mean it is rare).

https://en.wikipedia.org/wiki/Rare_earth_element

 

[physea]

anything about my actual question please?

 

[HAYAO]

Nothing confusing here (and no, they don't mean it is rare).

https://en.wikipedia.org/wiki/Rare_earth_element

My research is Rare Earths so don't worry, I know these stuff.

I meant that Zr is not rare Earth elements. However, I suspected that most likely the author of the website meant that Zr is just simply an element that is rare, which I thought would cause confusion among those who don't know much about what "Rare Earth" really means.

 

[HAYAO]

anything about my actual question please?

I think you are confusing oxygen anion and oxygen molecules.

 

[physea]

what do you mean exactly?
It is not possible to pump oxygen molecules from a gas chamber?
Or platinum is required to convert them to ions and then to pump them?

 

[physea]

anyone?