Titanium-containing Raney nickel catalyst for hydrogen electrodes in alkaline fuel cell systems

Journal Article · Sat Jan 01 00:00:00 EST 1977 · J. Electrochem. Soc.; (United States)

DOI:https://doi.org/10.1149/1.2133234· OSTI ID:7328826

Mund, K; Richter, G; von Sturm, F

In alkaline hydrogen-oxygen fuel cells Raney nickel is employed as catalyst for hydrogen electrodes. The rate of anodic hydrogen conversion has been increased significantly by using a titanium-containing Raney nickel. The properties of the catalyst powder, the influence of particle diameter, and the behavior of electrodes under load are described. Impedance measurements have been used to characterize the electrodes. In fuel cell systems the supported electrodes are normally operated at current densities up to 0.4 A . cm/sup -2/; the overload current density of 1 A . cm/sup -2/ can be maintained for several hours. (15 fig.)

• Research Organization: Siemens AG, Erlangen, Ger.
• OSTI ID: 7328826
• Journal Information: J. Electrochem. Soc.; (United States), Vol. 124:1
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
HYDROGEN FUEL CELLS
CATALYSTS
ALUMINIUM ALLOYS
ANODES
ELECTRIC IMPEDANCE
HYDROGEN
NICKEL ALLOYS
OXYGEN
PARTICLE SIZE
PERFORMANCE
POLARIZATION
TITANIUM ALLOYS
ALLOYS
CRYOGENIC FLUIDS
DIRECT ENERGY CONVERTERS
ELECTROCHEMICAL CELLS
ELECTRODES
ELEMENTS
FLUIDS
FUEL CELLS
IMPEDANCE
NONMETALS
SIZE
300503* - Fuel Cells- Materials
Components
& Auxiliaries