khlor - 17-1-2014 at 14:26
Well, I would like start to make my fuel cells, and I believe that would be interesting to get some opinion.
TheChemiKid - 17-1-2014 at 14:30
What sort of opinion are you asking for. Is it what type to make?
If that is your question, try a 2H2+O2 or "hydroxy gas" fuel cell.
Metacelsus - 17-1-2014 at 20:29
No no no no no!
A fuel cell COMBINES hydrogen (or another fuel) and oxygen to produce electricity, the reverse reaction of electrolysis.
https://en.wikipedia.org/wiki/Fuel_cell
@Awesomeness
By the way, please don't use "HHO." It smacks of pseudoscience and deeply annoys me.
khlor - 18-1-2014 at 20:32
Hello, thank you for replies. so, here goes the details.
the thing I need is about the electrodes, and a little bit about microbial fuel cells. I have some questions.
1st, in a ordinary hydrogen fuel cell, according with my searches the electrodes are made of the same material, so. how can I define cathode and
anode?
2nd, about the microbial fuel cells(using bacteria) I have the same question about the electrodes, with the addition of is it a fuel cell or an
ordinary electrochemical cell? I mean two electrodes in a solution.
3rd, the so called soil fuel cells are soil fuel cells or just mud batteries? assuming that mud is ionic and therefore a conductor
4th, what kind of materials could I use on my fuel cells/microbial fuel cells electrodes?
5th, question in an ordinary fuel cell the only thing usable is hydrogen? is possible to use another fuels?(assuming that maybe a modification is
necessary) if yes how?
elementcollector1 - 18-1-2014 at 20:47
Cathode's positive, anode's negative (this is reversed for electrolytic cells). Depending on the output, you could test this with a LED or other such
one-way device. Once you figure it out, I would suggest marking the cathode, preferably with something red. Fuel cell electrodes are typically
platinum, if I remember correctly.
No idea on the other ones.
Metacelsus - 18-1-2014 at 21:06
Other fuels are possible, including (for example) methanol.
https://en.wikipedia.org/wiki/Direct_methanol_fuel_cell
Microbial fuel cells couple the electron transport chain of microbes to electrodes.
https://en.wikipedia.org/wiki/Microbial_fuel_cell
khlor - 26-1-2014 at 03:57
very interesting. I was wondering if is there anyway to make at home a proton exchange membrane or if is there any sort of cell that don't need such
thing.
IrC - 26-1-2014 at 04:49
Honestly you will have trouble getting help if you keep asking questions piecemeal without showing you are at least trying to do research on your own,
as in searching.
http://www.freepatentsonline.com/result.html?sort=relevance&...
All I did was enter 'fuel cell' into the search. I find patents useful since most often the person is in hopes of making money meaning a likely more
practical approach, as opposed to esoteric experiments in labs where overly complex construction with little regard to output are often the norm. By
this I mean usually they are measuring or trying to prove something as opposed to getting more out for their effort. Just a thought. You will find a
great wealth of ideas if you study some of the patents listed, as well as tracking down other patents referenced each time you look at a new patent.
I have found that unlike nearly every other patent resource online, freepatentsonline.com is by far the best. Rapidly you can go through patents, and
track reference patents. Loading time is minimized by images often stored in the pdf so that one can quickly skim the words in the patent on each web
page (most often if 1976 or newer) to determine if further reading is warranted. Then rapid downloading is there for free if you find one worthy of
further study. I have over 5 terrabytes of patents and references stored on DVD's, nearly all from this one site. I prefer to locally store such
information since experience has taught me things often vanish online.
khlor - 26-1-2014 at 07:46
Excelent site, really. this may help a lot. thanks bro.
bfesser - 26-1-2014 at 09:30
There seems to be confusion on this by some; familiarize yourselves with the definitions of these terms—<em>they are not
synonymous</em>!
<a href="http://en.wikipedia.org/wiki/Fuel_cell" target="_blank">Fuel Cell</a> <img src="../scipics/_wiki.png" />
<a href="http://en.wikipedia.org/wiki/Electrochemical_cell" target="_blank">Electrochemical Cell</a> <img src="../scipics/_wiki.png"
/>
<a href="http://en.wikipedia.org/wiki/Electrolytic_cell" target="_blank">Electrolytic Cell</a> <img src="../scipics/_wiki.png" />