Hydrogen Re-electrification Technologies

Proton exchange membranes (PEM) fuel cells (or polymer electrolyte fuel cells - PEFCs), with H -conducting polymeric membranes, transports hydrogen (fuel) cations, generated at the anode, to an ambient air exposed cathode, where they are electro-oxidised to water at low temperatures. [Pg.52]

Solid oxide fuel cells (SOFC), which use oxygen conducting ceramic membranes to electo-combust H2, at the anode, by 02 -anions provided by the cathodic reduction of ambient oxygen at high temperatures. [Pg.52]

Molten carbonate fuel cells (MCFC), with alkali carbonate (in LiA102 matrixes) electrolyte, conduct C032 -anions, generated at an 02/C02 exposed cathode to electro-oxidise H2 at the anode and at high temperatures. [Pg.52]

Alkaline fuel cells (AFC), with concentrated KOH (in asbestos matrices) electrolyte, conduct OH -anions, generated at an 02/H20 exposed cathode to electro-oxidize H2 (fuel) at the anode at moderate temperatures, and [Pg.52]

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