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Stabilizing platinum in phosphoric acid fuel cells (Document No: 19810013942)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Remick, R. J. |
| Copyright Year | 1981 |
| Description | The cathode of the phosphoric acid fuel cell uses a high surface area platinum catalyst supported on a carbon substrate. During operation, the small platinum crystallites sinter, causing loss in cell performance. A support was developed that stabilizes platinum in the high surface area condition by retarding or preventing the sintering process. The approach is to form etch pits in the carbon by oxidizing the carbon in the presence of a metal oxide catalyst, remove the metal oxide by an acid wash, and then deposit platinum in these pits. Results confirm the formation of etch pits in each of the three supports chosen for investigation: Vulcan XC-72R, Vulcan XC-72 that was graphized at 2500 C, and Shawinigan Acetylene Black. |
| File Size | 1523281 |
| Page Count | 26 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19810013942 |
| Archival Resource Key | ark:/13960/t7jq5sq55 |
| Language | English |
| Publisher Date | 1981-04-01 |
| Access Restriction | Open |
| Subject Keyword | Energy Production And Conversion Phosphoric Acid Supports Stabilization Platinum Fuel Cells Sintering Electrocatalysts Oxidation Substrates Energy Storage Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
