摘要:
To prevent corrosion at the contact to a gas-diffusion electrode of an electrolytic cell, the electrode is provided on its gasside with a hydrophobic porous coating of, for example, polytetrafluoroethylene and with a layer of graphite, tungsten carbide, or niobium silicide in conductive contact with the electrode.
摘要:
By including tungsten disulfide and/or molybdenum disulfide in the fuel electrode of a fuel cell, poisoning effects previously experienced with fuels containing hydrogen sulfide are avoided.
摘要:
A fuel electrode whose catalytic component is chosen from the group consisting of the tellurides and selenides of the elements molybdenum, tungsten, and chromium.
摘要:
In a gas fuel cell there are provided bipolar low-pressure electrodes each formed of a flexible graphite foam foil carrying active electrode layers on opposite faces. The gas-side face of each active electrode layer is provided with raised portions which, together with the adjoining foil face, define a channel system forming a closed gas chamber. The raised portions are so arranged that the gas which enters and leaves the gas chamber through an inlet opening and an outlet opening provided in the active electrode layer is substantially evenly distributed over the entire area of the gas-side face of the active electrode layer.
摘要:
A gas diffusion electrode for an electrochemical cell having an acidic electrolyte, including a metal net, a corrosion-resistant, electrolyte- and gas-impervious, graphite-foam coating on the net, sunken canals on the graphite-foam coating for conducting electrolyte, a porous catalyzing layer conforming with the net and in contact with the graphite-foam coating, and an electrically insulating coating on the graphite-foam coating.