{
  "$type": "site.standard.document",
  "description": "The present disclosure relates to high-temperature proton exchange membrane fuel cells (HT-PEMFC) having phosphoric acid as a proton conductor, and methods for mitigating phosphate poisoning of the catalyst in the fuel cell. The fuel cells and the method include a buffer layer between metal…",
  "path": "/patents/1378833",
  "publishedAt": "2026-02-26T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M8/1004",
    "Toyota Motor Engineering & Manufacturing North America, Inc."
  ],
  "textContent": "The present disclosure relates to high-temperature proton exchange membrane fuel cells (HT-PEMFC) having phosphoric acid as a proton conductor, and methods for mitigating phosphate poisoning of the catalyst in the fuel cell. The fuel cells and the method include a buffer layer between metal catalyst nanoparticles and at least one polymeric ionomer layer. The buffer layer includes a protic ionic liquid having a high melting point greater than 160° C., and the ratio of the protic ionic liquid to carbon (IL/C) is from about 0.1 to about 0.2.",
  "title": "BUFFER LAYER AND METHOD FOR MITIGATION OF PHOSPHATE POISONING IN HIGH-TEMPERATURE PROTON EXCHANGE MEMBRANE FUEL CELLS (HT-PEMFC)"
}