Storing a mixture of hydrogen and oxygen is very dangerous
LetsGo has done a good job of explaining why Mr. "Chemist's" electrolysis scheme won't generate a real increase in fuel economy. I would like to tell Mr. "Chemist" that the clear plastic container that your electrolysis system is using as an accumulator for the mixture of hydrogen and oxygen is a serious hazard. Storing a mixture of hydrogen and oxygen is very dangerous; it's an explosion waiting to happen. A hydrogen explosion in air is dangerous, but a hydrogen explosion with pure oxygen at the correct stoichiometric ratio (as you will get from the electrolysis of water) can be very dangerous. Water electrolysis units used in science and industry do not mix the hydrogen and oxygen. Hydrogen is generated at the cathode and collected in one accumulator and oxygen is generated at the anode and collected in another accumulator. If the hydrogen and oxygen are collected together, the gases are a perfect stoichiometric mixture of a fuel and an oxidizer.
The ignition energy required for a hydrogen in pure oxygen (0.0012 mJ) is an order of magnitude lower than the ignition energy required for hydrogen in air (0.017 mJ). The 0.0012 mJ that is required to ignite pure hydrogen and oxygen is an amazingly small amount of energy. Others on this forum, please take if from a Licensed Professional Chemical Engineer, working with mixtures of hydrogen and oxygen is a very bad idea.
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