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Topic: material for anode  (Read 2383 times)

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Offline megarushan

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material for anode
« on: February 27, 2015, 10:37:57 AM »
[What are the suitable materials for anode in electrolysis we can find easily at home.

i tried pencil graphite and battery carbon rod but this material are disintegrated quickly.. i think platinum and gold may be suitable but they are more expansive..
thank you.
« Last Edit: July 25, 2017, 10:46:56 AM by Arkcon »

Offline billnotgatez

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Re: material for anode
« Reply #1 on: February 27, 2015, 11:46:03 AM »
In this forum we try to help people find the answers themselves.
There are many resources available on line

For instance there is the WIKI
http://en.wikipedia.org/wiki/Electrolysis_of_water
At the bottom there are links and references which are helpful as well.
Even if WIKI does not give you your specific answer, it will educate you with a good overview, so you can better define your question.

Next is GOOGLE (google.com)
I did a search on
list of electrolysis electrodes material
and sifted through the list of results and found a link like this
http://www.globalspec.com/learnmore/materials_chemicals_adhesives/electrical_optical_specialty_materials/electrical_contact_electrode_materials/electrical_contact_electrode_materials
GOOGLE is not the only search engine on the internet and maybe someone may mention a search engine they like better for this question.

Finally I searched this forum and found discussions like these
http://www.chemicalforums.com/index.php?topic=77661.0
http://www.chemicalforums.com/index.php?topic=78559.0
http://www.chemicalforums.com/index.php?topic=76839.0

Of all the links I listed and any others you have found, which material do you have available.


Offline Zyklonb

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Re: material for anode
« Reply #2 on: February 27, 2015, 09:16:52 PM »
It depends on what you are electrolyzing. It it's just water with ions to conduct electricity, stainless steel will only corrode slowly but if it's a chloride solution or something similar you'll want a DSA (Dimensionally Stable Anode) the most common one you'll find is called MMO (mixed metal oxide) which is titanium metal coated with a very stable oxide such as lead dioxide, cobalt oxide, manganese dioxide or the best are ruthenium and iridium oxide because they are very stable and catalytic in the oxidation of chloride to hypochlorite and chlorate. I have sold several ruthenium and iridium oxide anodes here and have plenty left if you want some ($3/ sq inch.) shipping is free to the US.

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