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Platinum-Substitute Materials as Electrocatalysts for Oxygen Reduction.

PB297261

Publication Date	1979
Personal Author	Cathey, W. N.; Nicks, L. J.; Bauer, D. J.
Page Count	22
Abstract	Many materials including carbides, silicides, phosphides, borides, nitrides, oxides, and metals were studied by the Bureau of Mines as potential fuel cell catalysts for electro-reduction of oxygen in a 1N H2SO4 electrolyte. The objective of this study was to assess the potential of abundant, low-cost materials as substitutes for platinum or to increase the catalytic efficiency of platinum. Several compounds were rejected because of their reaction in the corrosive environment of the oxygen electrode. However, some of the remaining were the most active catalysts. Activity of carbides such as tungsten carbide could be improved by doping with platinum-group metals, by varying stoichiometry, or by sputtering on a layer of platinum. While no catalysts were found with activity as high as platinum, some compounds were shown to be deserving of further investigation.
Keywords	Oxygen Catalysts Reduction Platinum Fuel cells Electrochemistry Electrodes
Source Agency	Bureau of Mines
NTIS Subject Category	99F - Physical & Theoretical Chemistry 97O - Miscellaneous Energy Conversion & Storage
Corporate Authors	Bureau of Mines, Reno, NV. Reno Metallurgy Research Center.
Document Type	Technical Report
Title Note	Rept. of investigations.
NTIS Issue Number	197921

Platinum-Substitute Materials as Electrocatalysts for Oxygen Reduction.

Platinum-Substitute Materials as Electrocatalysts for Oxygen Reduction.
PB297261

Publication Date	1979
Personal Author	Cathey, W. N.; Nicks, L. J.; Bauer, D. J.
Page Count	22
Abstract	Many materials including carbides, silicides, phosphides, borides, nitrides, oxides, and metals were studied by the Bureau of Mines as potential fuel cell catalysts for electro-reduction of oxygen in a 1N H2SO4 electrolyte. The objective of this study was to assess the potential of abundant, low-cost materials as substitutes for platinum or to increase the catalytic efficiency of platinum. Several compounds were rejected because of their reaction in the corrosive environment of the oxygen electrode. However, some of the remaining were the most active catalysts. Activity of carbides such as tungsten carbide could be improved by doping with platinum-group metals, by varying stoichiometry, or by sputtering on a layer of platinum. While no catalysts were found with activity as high as platinum, some compounds were shown to be deserving of further investigation.
Keywords	Oxygen Catalysts Reduction Platinum Fuel cells Electrochemistry Electrodes
Source Agency	Bureau of Mines
NTIS Subject Category	99F - Physical & Theoretical Chemistry 97O - Miscellaneous Energy Conversion & Storage
Corporate Authors	Bureau of Mines, Reno, NV. Reno Metallurgy Research Center.
Document Type	Technical Report
Title Note	Rept. of investigations.
NTIS Issue Number	197921