Duff5OOO OP t1_j010vna wrote on December 13, 2022 at 8:12 AM

Reply to comment by RebelWithoutAClue in Good vibrations turbo charge green hydrogen production - Engineers in Melbourne have used sound waves to boost production of green hydrogen by 14 times by Duff5OOO

> I forget to look at papers directly when I'm on a phone because a phone is an abysmal platform for looking at complicated things.

I completely missed it when i originally looked on my phone. Tried to look up "Advanced Energy Materials" and had no luck. Only found it was linked later when i was at my PC. Figured you may have had the same trouble i had :)

>I sure hurt my head trying to parse all of that.

Ditto. Much of it is well past my understanding without spending the night looking up a heap of different side topics to get an idea on what's going on.

"Our investigations reveal a further dominant mechanism is at play: in the same way that the extraordinary surface acceleration ( m s−2)) (Figure 1b,c), local evanescent electric field ( V m−1)) and pressure (–1 MPa)) associated with the SRBW-forcing has been shown previously to drive free radical and proton formation,[31, 32] we show from an examination of the interfacial water structure via Raman spectroscopy, evidence for the disruption of the tetrahedral hydrogen bond water network of the neutral electrolyte."

???

We need an AMA with someone involved. :)

The cost savings with electrolyte and electrode i get. Sounds promising by itself. Would like some more info on gas volume produced per unit of energy input as a total system.

>I had ignited a mix of hydrogen and chlorine which was making HCL in my mucous membranes and I just gassed myself...

Nice one! A least you noticed early enough :)

RebelWithoutAClue t1_j011ykd wrote on December 13, 2022 at 8:27 AM

I looked up Raman spectroscopy on wikipedia. I think they're shooting a laser at the working area of the electrodes to observe the wavelengths of scattered light. It appears to me that they are applying a kind of molecular emissions spectroscopy where they excite their sample region with a chosen wavelength of laser to excite the molecules in the region. The molecules enter a higher energy state, due to laser excitation, and when they "come back down" to a lower energy level the emit light of different wavelengths which may be analyzed. Also the emissions spectra of disassociated protons and OH radicals will have their own character that can be observed.

I suppose that they observe a different emissions spectra when they're making noise and electrolyzing than when they aren't making noise. I sure hope that they're not affecting their experiment with their use of their laser because it surely is a wavelength that can affect water molecules.

Anyways it doesn't appear to involve alkaline treated noodles as far as I can tell.

For the record: I did not notice the strange emissions spectra of my gas combustion trial soon enough. I saw a funny colour that wasn't the usual purple hue and said "huh"... Then my eyeballs, sinuses, and lungs were getting fried when I took my next breath as my brain assimilated it's findings a few seconds too late.