초록 ▼

Fuel cell catalysts which are efficient, long-lived, and refurbishable in-situ include gold carrying a UPD deposit of another element. UPD Ag, Pt, Pd, Ir, Rh or Tl, Pb and Bi on Au crystallites are carried on and bonded to another substrate. The crystallites cause dissociative adsorption of the oxyg

Fuel cell catalysts which are efficient, long-lived, and refurbishable in-situ include gold carrying a UPD deposit of another element. UPD Ag, Pt, Pd, Ir, Rh or Tl, Pb and Bi on Au crystallites are carried on and bonded to another substrate. The crystallites cause dissociative adsorption of the oxygen molecules so that four electrons are produced per molecule during the reduction reaction which is involved. In an alkaline electrolyte, the catalyst metals such as Pd, Ir, Ag, Rh and Pt show no tendency to poison the counter electrode (counter relative to the other electrode) since each of those metals is a good catalyst for both electrodes. Suitable fuels include methanol (CH3OH), formaldehyde (HCHO), and formic acid (HCOOH).

대표청구항 ▼

In a fuel cell including a pair of electrodes and an electrolyte between said electrodes housed within a chamber adapted for supplying fuel to said electrodes, the improvement comprising provision of a gold substrate serving as the negative electrode of said fuel cell, said electrolyte containing a

In a fuel cell including a pair of electrodes and an electrolyte between said electrodes housed within a chamber adapted for supplying fuel to said electrodes, the improvement comprising provision of a gold substrate serving as the negative electrode of said fuel cell, said electrolyte containing a species of ion of a predetermined metal which metal deposits on said gold substrate at an underpotential said gold substrate carrying an underpotential layer of said predetermined metal serving as a catalyst metal for the reduction-oxidation reactions of oxygen and other fuels of said fuel cell.