{
  "$type": "site.standard.document",
  "description": "Platinum or platinum alloy powder for use as a catalyst in fuel cells or chemical reactions combines a BET specific surface area above 40m/g with a chlorine content below 100ppm. An Independent claim is also included for the production of the powder involving: (i) heating a melt of a low-melting…",
  "path": "/patents/1098416",
  "publishedAt": "2003-02-12T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B22F9/24",
    "OMG AG & CO KG [DE]"
  ],
  "textContent": "Platinum or platinum alloy powder for use as a catalyst in fuel cells or chemical reactions combines a BET specific surface area above 40m/g with a chlorine content below 100ppm. An Independent claim is also included for the production of the powder involving: (i) heating a melt of a low-melting mixture of alkali nitrates, a low-chlorine platinum (Pt) compound and optionally a low-chlorine compound of the alloying element to decompose the latter 2 compounds to their oxides; (ii) cooling the melt and dissolving it in water; and (iii) reducing the (mixed) oxides to the corresponding metal(s).",
  "title": "low chlorine platinum and platinum alloy powders with increased specific surface area and process for the preparation thereof using a nitrate salt melt"
}