plante1999
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Fuel Cell
Is there anybody that make fuels cells on SM? I tried make an new type of Fuel cell ,the urea fueled cell.
http://hclo3chem.weebly.com/methanol-fuel-cell.html
Zinc Air /aluminium Air / microbial fuel cell /Molten carbonate and phosphoric acid fuel are realy good device.
I never asked for this.
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White Yeti
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I never made fuel cells due to the prohibitive price of platinum catalysts and secrecy surrounding other, cheaper catalysts. I always wanted to get my
hands on a hydrogen fuel cell so that I could test out a hydrogen storage system that looks very promising:
NH4HCO3 ---> CO2 +H2O +NH3
The fuel can be stored at room temperature as opposed to liquid ammonia.
Then again, I need a catalyst to split ammonia -.-
I made aluminium air batteries in the past, they work really well.
"Ja, Kalzium, das ist alles!" -Otto Loewi
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plante1999
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Carbon/Cobalt oxide catalist are realy good oxidation catalyst for fuel cell, it can be made from activated charcoal/ char rope (See the video link
for the process for making it), char rope is actualy glassy carbon fiber) and impregnate them with solube cobalt salt and them electrolise them as the
anode , it will make Co2O3/C based catalist . I worked on urea sol. because it decompose to NH3 and CO2 in H2O. An than NH3 is oxidised
(NH2)2CO + H20 -) CO2 + 2NH3
Iron air fuel cell is also promising...but less than the zinc one.
http://www.youtube.com/watch?v=kcscWBgTijk
http://www.youtube.com/watch?v=jjUDMbVl3Bg
I never asked for this.
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White Yeti
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You are describing a process that works theoretically, but I can assure you that catalysts are a pain to get to work properly in real life.
Here are pictures of aluminium air "fuel cells" that I made. I consider them more as primary cells more than fuel cells, but they use oxygen from the
air to work, so they could technically be both.
   (two cells powering 5 IR LEDs)
~.8V per cell with a SC current of ~50mA.
"Ja, Kalzium, das ist alles!" -Otto Loewi
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symboom
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i am with you on that plante 1999 there must be a diy fuel cell that can maybe generate more power. that can be easily built
like maybe a solid oxide fuel cell SOFC because you can use any hydrocarbon.\ any suggestions
none on youtube
[Edited on 28-12-2011 by symboom]
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plante1999
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Solid oxide fuel cell are contamined with CO2... If we all work together I suppose we can make an powerfull Fuel cell that doesn require platinum
based catalist.
Fuel that are interressing:
-)Urea (NH2)2CO
Iron Fe
Zinc Zn
Hydrocarbon CH2n+2
I never asked for this.
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Geko127
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What about borohydride fuel cells
Ask No questions and ill tell no lie\'s.
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White Yeti
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Epic thread bump, exactly 4 months!
How about a fuel cell that looks a little like this:
C2O4-2 + S2O8-2 → 2CO2 + 2SO4-2
This can be a fuel cell if the oxalate is fed continuously and the sulphate is somehow reduced to sulfur or sulfur dioxide which can be removed.
Another way oxalate can be oxidised is if the cathode consists of an inert electrode immersed in a container of oxygenated water where this reaction
would take place:
O2 + 2H2O + 4e- → 4OH- +0.40 V
With an overall reaction of:
2C2O4-2 +O2 + 2H2O → 4CO2 + 4OH-
Unfortunately the rate of the reaction is limited by the rate at which oxygen can diffuse into the cathode compartment. Therefore, the power output of
this cell would be quite low.
Another potential problem would be how to get hold of some inert electrodes made of everyone's favourite metal, platinum. That's if carbon can't get
the job done.
"Ja, Kalzium, das ist alles!" -Otto Loewi
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Pyridinium
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Quote: Originally posted by White Yeti  |
Another potential problem would be how to get hold of some inert electrodes made of everyone's favourite metal, platinum. That's if carbon can't get
the job done. |
I read an article that put it pretty aptly (can't remember name of it). If it went to platinum fuel cells on a large scale, the nations of the world
would be in continual wars as this scarce resource became in even greater demand.
The non-platinum ones seem more appealing on that basis alone.
I say we keep our eye on activated carbon, with its incredibly high surface area. The biochar fuel cell! If someone invents it, I claim partial IP
on that one. 
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Hexavalent
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I have recently posted in Prepubs, if anyone's interested, an article I wrote about hydrogen fuel cells for my homework at school
"Success is going from failure to failure without loss of enthusiasm." Winston Churchill
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White Yeti
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Bahhh I don't have Microsoft publisher, can you re-upload in word by any chance?
"Ja, Kalzium, das ist alles!" -Otto Loewi
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Hexavalent
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Publisher keeps telling me that is doesn't recognise either of the versions of Word I have installed (the 2003 and 2007 versions), so I've left the
original .pub link attached but just edited the post to include the text of the article.
"Success is going from failure to failure without loss of enthusiasm." Winston Churchill
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Morgan
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Well it starts up quickly. In another clip he refers to it as a methanol/air battery.
The Direct Methanol Fuel Cell
http://www.youtube.com/watch?v=rxFhtpF0FGk
Tidbit
Role of Hydrous Ruthenium Oxide in Pt−Ru Direct Methanol Fuel Cell Anode Electrocatalysts: The Importance of Mixed Electron/Proton
Conductivity
http://pubs.acs.org/doi/abs/10.1021/la9807863?journalCode=la...
[Edited on 20-12-2013 by Morgan]
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