Can UVC Light and Electrolysis Efficiently Split Water?

  • Thread starter Thread starter xArcherx
  • Start date Start date
  • Tags Tags
    Dissociation
AI Thread Summary
The discussion centers on a project aimed at efficiently splitting water using a spherical aluminum container with a mirror finish, housing a UVC light. The UVC light is intended to break water bonds, leading to the temporary formation of hydrogen peroxide, while electrolysis is proposed to facilitate the actual gas production. The hypothesis suggests that the UVC light can create ions that are then directed to electrodes, where they can form hydrogen and oxygen gases with minimal energy loss. Concerns about the corrosion of aluminum and gas loss from design flaws have been raised, prompting a shift to using stainless steel for improved durability. Input on potential obstacles and progress updates on prototypes is sought to refine the approach.
xArcherx
Messages
35
Reaction score
0
I'm working on a project to split water. The idea is to have a spherical container of aluminum with the inside given a mirror finish. A germicidal light is secured inside and the container is filled with water.

The UVC light should have enough energy to break the bonds (although I searched the internet and couldn't find a solid answer on the energy required to break the HO bonds) especially when the light is reflected back onto itself.

However I know this won't actually cause hydrogen and oxygen gas to form but instead it will cause the water to undergo a cyclic process of bonds breaking and reforming involving the temporary formation of hydrogen peroxide.

So that is where the electrolysis comes in. Electrolysis is a wasteful means of splitting water where current will simply pass through, some of the energy simply heats the water, then finally you get the energy that breaks the bonds and even a bit more to form the gases.

My hypothesis is that once the UVC light breaks the bonds creating the ions, a much smaller current is used to pull these ions to the associating electrode (before any bond cycling can occur) where they pick up/drop off the necessary electrons to form the gases. That is once the bonds are broken, hydrogen ions will be pulled to the cathode where the ions pick up their missing electrons, come together to form hydrogen gas, and float to a collecting point. Oxygen ions will get pulled to the anode where they dump off the excess electrons, form oxygen gas, and float to a collection point.

I'm hoping that 1 amp per second can produce 1/2 a mole of hydrogen gas per second and 1/4 a mole of oxygen gas per second. Provided that no current is required to do the bond breaking and that no current wastefully spans across from electrode to electrode without contributing to the process. This would mean that a small force (1 volt) can produce a large quantity of gas provided that the resistance is low (.01) resulting in a high current (10 amps).

So what I'm looking for is some input, I would like to know the obstacles I may face before I get to them.

Thnx
 
Engineering news on Phys.org
Have you had any success with your prototype? I came up with the same idea(feb2008) and built a prototype out of aluminum but I found the metal to corrode very fast. I was also losing any gas I produced from a bad design.

I have almost finished my new cell with stainless steel.

I am very interested in any progress you have made



Norrit4ever
 
Thread 'I need a concave mirror with a focal length length of 150 feet'
I need to cut down a 3 year old dead tree from top down so tree causes no damage with small pieces falling. I need a mirror with a focal length of 150 ft. 12" diameter to 36" diameter will work good but I can't think of any easy way to build it. Nothing like this for sale on Ebay. I have a 30" Fresnel lens that I use to burn stumps it works great. Tree service wants $2000.
Hi all, i have some questions about the tesla turbine: is a tesla turbine more efficient than a steam engine or a stirling engine ? about the discs of the tesla turbine warping because of the high speed rotations; does running the engine on a lower speed solve that or will the discs warp anyway after time ? what is the difference in efficiency between the tesla turbine running at high speed and running it at a lower speed ( as fast as possible but low enough to not warp de discs) and: i...
Thread 'Where is my curb stop?'
My water meter is submerged under water for about 95% of the year. Today I took a photograph of the inside of my water meter box because today is one of the rare days that my water meter is not submerged in water. Here is the photograph that I took of my water meter with the cover on: Here is a photograph I took of my water meter with the cover off: I edited the photograph to draw a red circle around a knob on my water meter. Is that knob that I drew a red circle around my meter...
Back
Top