Electrochemistry is a pathway to convert CO2 into valuable products such as CO. However, a potential side product in the cathode is H2. I wonder if it is possible to tune the composition of the catalyst in the cathode to produce syngas with a ratio H2/CO=2. Some research has been devoted to this topic using either gaseous CO2 or bicarbonate as CO2 source. However, can this technology be developed to be used at industrial scale?