Molecular Engineering of Pt-Based Electrocatalysts for Hydrocarbon Fuel Cell Electrodes.
Final technical rept. 1 Nov 66-31 Jan 71,
TYCO LABS INC WALTHAM MASS
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The program was concerned with relating the activity of platinum black catalysts for the anodic oxidation of propane in 85 H3PO4 at 150C to their physical characteristics. The first phase consisted of the controlled preparation of Pt catalysts with a wide range of activity and in defining the methods of physical characterization. Emphasis was placed on the formaldehyde reduction of chloroplatinic acid. The preparative method for a Pt black of high activity is presented in detail. One novel technique involving the measurement of the extent of N2 chemisorption on the catalyst was used to assess the role of active sites in the anodic oxidation of hydrocarbons. The catalysts were tested as PTFE bonded electrodes.
- Physical Chemistry
- Electric Power Production and Distribution