Wet-Chemical Preparation and Oxygen Reduction Properties of Nickel-Based Sulfide Electrocatalysts for Polymer Electrolyte Fuel Cell

Wet-Chemical Preparation and Oxygen Reduction Properties of Nickel-Based Sulfide Electrocatalysts for Polymer Electrolyte Fuel Cell

Metal-sulfides with high chemical stability in acidic condition were tried to develop as an alternative none-noble metal electrocatalyst for polymer electrolyte fuel cell (PEFC). In particular, various types of Ni-based sulfides have synthesized by wet-chemical method and analyzed for the cathodic p...

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Veröffentlicht in:Denki kagaku oyobi kōgyō butsuri kagaku 2011/05/05, Vol.79(5), pp.364-366
Hauptverfasser: IWAYA, Wataru, TAKASE, Satoko, SHIMIZU, Youichi
Format: Artikel
Sprache:eng
Schlagworte:
Alternative fuels
Catalysis
Electrocatalysts
Electrolytes
Fuel cells
Nickel
Nickel Sulfide
Oxygen Reduction
PEFC
Reduction (electrolytic)
Sulfides
Wet-chemical Synthesis
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Zusammenfassung:Metal-sulfides with high chemical stability in acidic condition were tried to develop as an alternative none-noble metal electrocatalyst for polymer electrolyte fuel cell (PEFC). In particular, various types of Ni-based sulfides have synthesized by wet-chemical method and analyzed for the cathodic performances. Among the NiS, NiS2, and Ni3S4, nickel-mono sulfide (NiS) system showed high oxygen reduction performance in 2N-H2SO4 at 70°C. In addition, Ni0.9Cu0.1S was found to show the highest oxygen reduction performance in the Ni-mono sulfide based catalysts.
ISSN:1344-3542
2186-2451
DOI:10.5796/electrochemistry.79.364