Sure this might work in a laboratory, but it is a long way from being a practical process on an industrial scale and at what cost. Our current corn ethanol boondoggle works only because of massive government subsidy from planting the corn to pumping the ethanol into your tank. Ethanol is a poor fuel and the energy needed to produce, ship and blend it with gasoline is more than obtained from using it as a motor fuel. I doubt this process would be any more energy efficient .
Raw energy efficiency is rarely the economic driver for energy use and production. Canadian tar sands are a perfect example the EROI for tar sands in nearly break even in some areas. However they are taking massive amounts of cheap natural gas and using it in almost a btu to btu basis to extract and crack bitumen into high value liquid fuels. The value of the liquid fuel is so much more than the value of the natural gas in monetary terms that the industry doesn’t care that the efficiency is low.
Same could drive this process using off peak electricity which in parts of the USA the power company pays consumers to use with negative wholesale rates and turning that essentially free power into a liquid worth $2+ a usgal could at some point make fiscal sense. The efficiency doesn’t matter one bit its cost of input vs final sale price of output.
another group of research has made an electrochemical cell that makes butanol which is not hydrophilic, and not corrosive it has 90% the btu/gal as octane and runs at the same AF lamba as octane so no MIL light when run in a unmodified vehicle. turning surplus power into liquid fuels is more energy dense than batteries one gal of ethanol holds 23kwhr batteries to hold the same amount would weight hundreds of kg. hydrocarbons trump batteries every time.