Abstract
A method for fabricating an exhaust gas decontamination reactor, which is an exhaust gas decontamination pipe or a exhaust gas decontamination honeycombed structure, comprises steps: respectively coating a cathode layer and an anode layer on an outer wall surface and an inner wall surface of a pipe; and forming an enclosed reducing environment inside an internal channel of the pipe. The method for fabricating an exhaust gas decontamination honeycombed structure comprises steps: respectively coating cathode layers and anode layers on first inner wall surfaces of first passages and second inner wall surfaces of second passages; and forming enclosed reducing environments inside the second passages. Then, the cathode layers function as reaction sites to decontaminate exhaust gas. The present invention needn't arrange a reducing-gas system in the reactor and thus can decrease the volume and fabrication cost thereof.