Electrolytic deoxygenation devices have been fabricated using SiC, SWCNT, graphene, and PEDOT*PSS for the electrodes. Characteristics of devices were studied by measuring currents, O2 and H2 concentrations, and humidity during deoxygenation in a closed container. Performances of the devices being composed of cation or anion exchange membrane are discussed comparing with the standard catalyst of Pt-black. It is found that generation of moisture and H2 was substantially involved in the deoxygenation.