Could a Microscopic Compound Solve the Storage Issue for Fuel Cell Cars?

In summary: Water molecules are polar because two hydrogen atoms (each with one proton and one electron) share their electrons equally between them. This makes the molecule dipoles, and therefore polar.
  • #1
taylaron
Gold Member
397
1
i recently read in a popular science magizine about a guy inventing a substance that was like a "scafalding" for atoms. that the atoms (gas state) bonded to this structure (assuming this scaffalding is microscopic) making it "semi-solid" i don't know what you would call it. but what if you did come up with a microscopic compound that when charged would attract hydrogen atoms (for sake of fuel cell cars) making it more "compact" than holding a massive container full of gas state hydrogen.
yet, i still have a lot to learn.
this is part chemistry so i asked my chemistry teatcher if hydrogen atoms are polar (of course they are because hydrogen bonds to oxygen to make water) she said they were polar. for just that example. anyways, since hydrogen is polar, you could fill this vaccume sealed chamber with this "microscopic grid" inside of it with hydrogen. then starting at the far end of the container, charge the grid as to polarize it, making an attraction between the grid and the atoms. I am assuming the atoms would "bond" with the grid electromagnetically. you gradually charge this grid from back to front (as to not make any empty pockets that loose hydrogen atoms couldent fill) then as the fuel cell car needs hydrogen, it releases the charge within a section of the grid, releasing the atoms back into free-flowing space. making them a "gas" again. then you go to through the whole fuel cells. the point of this idea is because the producers of the fuel cell cars don't yet have a useable way to store the massive ammounts of hydrogen the fuel cell goes through. they speak of MASSIVE tanks that would be required. since the psi would be so high, the container would need to be thicker and thicker.
please forgive my spelling and grammar mistakes.
 
Physics news on Phys.org
  • #2
Hydrogen molecules are not polar, nor are any molecules composed of two atoms of the same element.

- Warren
 
  • #3
again

how are hydrogen molecules not polar since they bond with oxygen to create water.
 
  • #4
hydrogen ATOMS bond with water. When you burn hydrogen, you want to burn a molecule. This isn't polar, and you'll find that's why you need such a high initial expense of energy to start converting hydrogen and oxygen to water.

And hydrogen atoms aren't polar, they simply aren't as electronegative as water (although I suppose with only one electron, it kind of is polar).
 
  • #5
"Bonding with oxygen" doesn't imply anything with respect to polarity.

A hydrogen molecule is exactly symmetric -- two protons with two electrons equally shared between them. How on Earth could the hydrogen molecule be polar?

If the hydrogen molecule were polar, it would mean that the electrons "spend more time" around one atom than the other -- but the two atoms are identical. The hydrogen molecule is therefore not polar; I'm afraid your chemistry teacher is wrong, and so are you.

- Warren
 
  • #6
blow me out of the sky

well, obviously I've got some thinking to do. thanks for helping me out here. obviously I've got a crazy chemistry teatcher. it would be pretty cool if the concpet worked though. revolutionairy.

pardon my spelling...
 
  • #7
lets try this again...

so using a 3-d grid of the smallest scale of inter-crossing wires holding a negative charge inside a container wont attract the slightly positively charged Hydrogen atoms (although they are in hydrogen gas form (H2) naturally) into a 3-d grid of compact hydrogen molecules/atoms?:confused:
the storage of hydrogen through the use of a scaffold to hold the Hydrogen atoms closer together than in their free-form (space between the molecules when at 1atm) position.
or is the repulsive effect from each hydrogen atom going to limit the distance from their partner molecule inside the scaffold?
sorry if this sounds confusing.
 
  • #8
taylaron said:
so using a 3-d grid of the smallest scale of inter-crossing wires holding a negative charge inside a container wont attract the slightly positively charged Hydrogen atoms (although they are in hydrogen gas form (H2) naturally) into a 3-d grid of compact hydrogen molecules/atoms?:confused:

1) Hydrogen atoms (and molecules) are electrically neutral. They are not "slightly positively charged." You can polarize them a bit with an external electric field, but not much.

2) Hydrogen molecules have an average thermal velocity of some millions of miles per hour at room temperature. Would you care to calculate the voltage required? Hint: it'd be an impossibly large number; your grid would simply arc to whatever's holding it.

3) How, precisely, do you intend to make a wire mesh with atomic-scale wires?

- Warren
 
  • #9
thanks chroot, but I am not saying that we have the technology now to be able to develop a "scaffold" at an atomic scale.
thanks for pointing out my errors.
 
  • #10
maybe your teacher meant water molecules are polarised.
 

FAQ: Could a Microscopic Compound Solve the Storage Issue for Fuel Cell Cars?

What is fuel for a fuel cell car?

Fuel for a fuel cell car is a type of energy source that is used to power the vehicle. It is converted into electricity through a chemical reaction in the fuel cell to power the car's motor.

What types of fuel can be used in a fuel cell car?

Fuel cell cars can run on a variety of fuels, including hydrogen, methanol, natural gas, and even gasoline. However, hydrogen is the most commonly used fuel for fuel cell cars due to its abundance and clean energy production.

How does a fuel cell car work?

A fuel cell car works by using a fuel cell stack, which contains an anode, cathode, and an electrolyte membrane. Hydrogen is fed into the anode, and oxygen from the air is fed into the cathode. The chemical reaction between the hydrogen and oxygen produces electricity, which is used to power the car's motor.

What are the advantages of using fuel cell cars?

Fuel cell cars have several advantages, including zero emissions, higher efficiency compared to traditional combustion engines, and the ability to refuel quickly. They also have a longer range compared to electric cars and can be powered by renewable energy sources.

Are there any challenges with using fuel cell cars?

One of the main challenges with fuel cell cars is the lack of infrastructure for refueling. Hydrogen fueling stations are not as widespread as gasoline stations, which can make it difficult for drivers to find a place to refuel. Additionally, the production and storage of hydrogen can be expensive and require advanced technology.

Back
Top