Plasma coupling electrocatalysis carbon dioxide conversion device and method for product phase separation

The invention discloses a plasma coupling electrocatalysis carbon dioxide conversion device and method for product phase separation, carbon dioxide gas forms non-thermodynamically balanced active carbon dioxide excited state particles under the dielectric barrier plasma discharge effect, and high-energy carbon-oxygen bonds are effectively broken; the active particles are converted into gas-liquid carbon products under the electrocatalytic action of the gas diffusion electrode loaded with the catalyst, the reacted gas products are directly discharged from an outlet, and the reacted liquid products are temporarily stored in a three-dimensional additive manufacturing pore runner layer between the ion exchange membrane and the catalyst layer to be enriched; and the liquid products with high concentration and low impurities are discharged, captured and collected by the pulse water circulation system, so that the downstream direct utilization is facilitated. The device is flexible and convenient, modularized integr