Ternary fuel cell catalysts containing platinum, cobalt and chromium

Patent · Tue May 08 04:00:00 EDT 1984

OSTI ID:6286287

Luczak, F J; Landsman, D A

An improved ternary noble metal-containing, alloy catalyst which has a catalytic activity for the electrochemical reduction of oxygen greater than two and one-half times that of the supported unalloyed noble metal alone. In addition, a disclosure of the method of preparing said catalyst is by intimately contacting two metallic elements with a supported noble metal, then heating this material to form the ternary alloy catalyst. This catalyst has particular utility for the electrochemical reduction of oxygen which makes it particularly useful as a cathode in acid fuel cells. The preferred embodiment of this catalyst is finely divided platinum alloyed with chromium and cobalt supported on an electrically conductive carbon-black support material.

• Assignee: United Technologies Corporations
• Patent Number(s): US 4447506
• OSTI ID: 6286287
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
300503* -- Fuel Cells-- Materials
Components
& Auxiliaries
36 MATERIALS SCIENCE
360101 -- Metals & Alloys-- Preparation & Fabrication
ACID ELECTROLYTE FUEL CELLS
ALLOY SYSTEMS
ALLOYS
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
COBALT ALLOYS
DIRECT ENERGY CONVERTERS
ELECTROCATALYSTS
ELECTROCHEMICAL CELLS
ELEMENTS
FUEL CELLS
NONMETALS
OXYGEN
PLATINUM ALLOYS
PLATINUM METAL ALLOYS
REDUCTION
TERNARY ALLOY SYSTEMS