yeah expensive now. think targets are exhausts of power plants where CO2 levels are really high
It might work if energy is almost free and limitless. It always takes a lot more power to separate the CO2 than it took to generate it in the first place.
I mean trees do it. but was thinking more "High-Selectivity Electrochemical Conversion of CO2 to Ethanol using a Copper Nanoparticle/N-Doped Graphene Electrode"
