Improved efficiency electrolysis of water by 2.6 to 4.5

[jean.caissepas]

Hello,

of EPFL researchers found a solution concerning the electrodes: Exfoliation

line: http://www.enerzine.com/603/17528+le-stockage-de-lenergie-renouvelable-bientot-rentable+.html

Good reading...

[chatelot16]

blah, i don't even understand what they're talking about

classic electrolysis with nickel-plated iron electrode and caustic potash gives 80% efficiency with inexpensive equipment: it is therefore available without inventing anything ... but electricity is not yet expensive enough for it to be useful, but it will come

for the storage of electricity, the simple lead battery gives a better yield than the electrolysis then the fuel cell ... there too it is available, just barely too expensive, but in a short time it will become profitable to store electricity in lead battery factories

on an individual scale the batteries are expensive and of limited lifespan, but at the scale of a factory made for that, the lead is used eternally to rebuild new plates in the storage factory

[Gaston]

A priori (although the article is not really clear), it is not electrolysis, but a catalyzed dissociation of water (under the action, I suppose, of light).

And the researchers improved the performance by reducing the catalyst to "nanosheets".

The big drawback of this process is that it produces a very dangerous oxygen-hydrogen mixture to store (already that pure hydrogen is dangerous ...).

[chatelot16]

if it is to use light as a source of energy, it already exists! photosynthesis ! and instead of making a good oxygen hydrogen mixture, it also captures CO2 from the air to make biomass easy to store ... and even edible!

Another advantage of photosynthetic solar collectors: they grow on their own!

[moinsdewatt]

It is not about electrolysis but about photolysis.

[Ahmed]

Another advantage of photosynthetic solar collectors: they grow on their own!

From an economic point of view, this is a big disadvantage!

[navel]

For electrolysis, there are new compounds for the electrodes: http://news.stanford.edu/news/2014/august/splitter-clean-fuel-082014.html
nickel-metal / nickel-oxide mixture ...

[elephant]

I refer you to all that has been said on these forums and many others about Meyer's cell.

It appeared that the yield was significantly improved by the preparation of the electrodes, that is to say, in fact making them "dendritic" by electro-oxidation.
Which also brings us back to things that have been said about the close contact of hydrogen with highly fragmented nickel (Piantelli, Rossi and all the others)

From there to return to the old ideas of increasing the efficiency of combustion of internal combustion engines by injecting a SUFFICIENT amount of HHO, there is only one step.