{
  "$type": "site.standard.document",
  "description": "The present invention provides a process for preparing a catalyst precursor, said process comprising the steps of (i) providing PtXalloy particles on a support material and (ii) applying a shell of X to the PtXalloy particles to provide a catalyst precursor comprising particles having a PtXcore and…",
  "path": "/patents/1319734",
  "publishedAt": "2022-06-09T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M4/921",
    "JOHNSON MATTHEY FUEL CELLS LIMITED"
  ],
  "textContent": "The present invention provides a process for preparing a catalyst precursor, said process comprising the steps of (i) providing PtXalloy particles on a support material and (ii) applying a shell of X to the PtXalloy particles to provide a catalyst precursor comprising particles having a PtXcore and an X shell. The ratio of a to b is in the range of and including 10:1 to 1:2.5 and X is Co, Ni, Y, Gd, Sc or Cu. Also provided is a process for preparing a catalyst material.",
  "title": "CATALYST FOR A FUEL CELL"
}