Skip to content
Do you have adblock enabled?
 
If you can read this, either the style sheet didn't load or you have an older browser that doesn't support style sheets. Try clearing your browser cache and refreshing the page.

(The Drive)   Cat pee may be the secret to the hydrogen future and don't think they don't know it   (thedrive.com) divider line
    More: Interesting, Hydrogen, Hydrogen vehicle, Fuel cell, hydrogen future keeps, Electric vehicle, uses hydrogen, Climate change, Electrolysis  
•       •       •

808 clicks; posted to STEM » on 11 Jun 2021 at 11:03 AM (5 days ago)   |   Favorite    |   share:  Share on Twitter share via Email Share on Facebook



25 Comments     (+0 »)
View Voting Results: Smartest and Funniest
 
5 days ago  
I own your future, motherfarker. You can either pay now, or pay later. I know where you sleep.

Fark user imageView Full Size


/if the pee smell is any indication, i should be able to power my car for days
 
5 days ago  
TFA was confusing--how many cats do I put in my gas tank?

/seems cruel, but I need to get to the gym
 
5 days ago  

beezeltown: TFA was confusing--how many cats do I put in my gas tank?

/seems cruel, but I need to get to the gym


The cat actually goes in the middle of your exhaust. It breathes in the manifold fumes and farts out the cleaner air. Pretty amazing.
 
5 days ago  
Ammonia's too toxic to use in cars. We have enough trouble with it as an industrial refrigerant. And you still have the problem of needing expensive platinum-group catalysts in the hydrogen fuel cells.

Waste urea can be used as a feedstock for generating hydrogen more efficiently than from plain water. You don't need to supply as much energy to the electrolysis cell because you can extract some of its chemical potential energy.
 
5 days ago  
Well duh

dictionary.comView Full Size
 
5 days ago  

Ivo Shandor: the problem of needing expensive platinum-group catalysts in the hydrogen fuel cells.


That's why if we are going to be using hydrogen as a fuel it's not going to be in elemental form, and it's not going to be catalyzed. Palladium prices are another reason why, a typical vehicle needing an order of magnitude or two more of it by mass just for hydrogen storage. Checked on metal prices lately? That's before you get to platinum supply, which is about enough to fill an Olympic swimming pool to your ankle if you mined out literally every gram we know exists and melted everything else down from jewelry and scientific apparatus. Rough napkin computing results in an estimated 100-200 million car-sized fuel cells can be made with that supply. Pathetic.

Ammonia it is! Or methane. Or methanol. Etc, etc. At least using those make sense to store hydrogen as a fuel. If a good catalyst can be found that doesn't use precious metals fuel cells could work, but ultra-efficient internal combustion engines are the default choice here. You still gotta content with actually getting the hydrogen in the first place, the only practical oxygen-neutral method at industrial scale being electrolysis. Yuck. Thermal decomposition of water with nuclear energy is much more practical.

With solid state batteries coming along hydrogen in general makes very little sense in the long run, not to mention new electric motors that don't rely on rare earths for magnets. Even the heavy-load argument for hydrogen doesn't make sense, as Elaphe motors use windings that can be stamped out on a die for literally any scale. Batteries are the only weak link here so we are just waiting on whether or not solid-state battery production can be figured out within the next 5 years.
 
5 days ago  
Now cats are going to stop peeing.
 
5 days ago  
This may or may not work.


Fark user imageView Full Size
 
5 days ago  
th.bing.comView Full Size

Literally.  LIterally.
 
5 days ago  
What a pisser of a story.
 
5 days ago  
Heavy Metal (Take a Ride) (Soundtrack Version)
Youtube DL-HvfVwZKM
 
5 days ago  

Billy Liar: [th.bing.com image 766x1000]
Literally.  LIterally.


at very least a kitten in your carburettor
 
5 days ago  
If it's Ammonia they're after, they need look no further than Chickens.

Back on the farm, we had a two-story chicken house about as big as our farm house, with up to 200 chickens at a time.

When we'd clean it out, I always wished for a gas mask.  Dear LORD, but chickens make a helluva lot of Ammonia!

Tyson's, Purdue, KFC and Chik-Fil-A would be excellent places to start.
 
5 days ago  

King Something: [YouTube video: Heavy Metal (Take a Ride) (Soundtrack Version)]


encrypted-tbn0.gstatic.comView Full Size
 
5 days ago  
Ammonia is part of cat urine, but it's not unique to cats, which makes me wonder why the focus on 'cat urine' in this article.


The ACTUAL compound in [male] cat urine that has a big impact on the aroma is p-menthane-8-thiol-3-one. Smells like black currants, too.
 
5 days ago  

Embden.Meyerhof: Ammonia is part of cat urine, but it's not unique to cats, which makes me wonder why the focus on 'cat urine' in this article.


TFAuthor probably had an "epiphany" after cleaning their cat box.

What did you expect? Thoughtful and well-researched journalism for its own sake?
 
5 days ago  
Fark user imageView Full Size
 
5 days ago  
I've been promised hydrogen cars for decades now.
 
5 days ago  

Nicholas D. Wolfwood: When we'd clean it out, I always wished for a gas mask. Dear LORD, but chickens make a helluva lot of Ammonia!


Well, in all fairness, they'd simply kick off the process.

Ammonia is dangerous; it actually can cause blindness. But it does have some interesting properties. It can blacken white oak (which has a high degree of dimensional stability). I'm planning to do this with a Newtonian telescope I'll be building.this summer.
 
5 days ago  

Embden.Meyerhof: Ammonia is part of cat urine, but it's not unique to cats, which makes me wonder why the focus on 'cat urine' in this article.


The ACTUAL compound in [male] cat urine that has a big impact on the aroma is p-menthane-8-thiol-3-one. Smells like black currants, too.


Because you can't spell actual without cat
 
5 days ago  
Even if cat piss is useful in cooking up Hydrogen, how are you going to collect large amounts of the stuff? Vast factory farms?
 
5 days ago  

Marksrevenge: Even if cat piss is useful in cooking up Hydrogen, how are you going to collect large amounts of the stuff? Vast factory farms?


"The stuff" being cat urine.
 
5 days ago  

LewDux: Embden.Meyerhof: Ammonia is part of cat urine, but it's not unique to cats, which makes me wonder why the focus on 'cat urine' in this article.


The ACTUAL compound in [male] cat urine that has a big impact on the aroma is p-menthane-8-thiol-3-one. Smells like black currants, too.

Because you can't spell actual without cat


And you can't spell "currants" without "cats".
 
4 days ago  
Got a cat that pees in pints... good start...  use clumping litter, so we use that to fill potholes, which get attacked by dogs..
 
4 days ago  
Another long hard day at the ammonia mines. But, a green job is a job.
media1.giphy.comView Full Size
 
Displayed 25 of 25 comments

View Voting Results: Smartest and Funniest

This thread is closed to new comments.

Continue Farking




On Twitter


  1. Links are submitted by members of the Fark community.

  2. When community members submit a link, they also write a custom headline for the story.

  3. Other Farkers comment on the links. This is the number of comments. Click here to read them.

  4. Click here to submit a link.