Carbon cenospheres

{
  "id": "MLC-T-CHM-001632",
  "term": "Carbon cenospheres",
  "field": "Chemistry",
  "definition": "Porous or hollow carbonaceous spheres, mostly a few micrometres to several hundred micrometres across, that form when droplets of heavy fuel oil or particles of coal undergo pyrolysis or burning. Their thin shells enclose a void, giving a low bulk density. They are far larger than carbon black particles, whose primary particles measure only tens of nanometres.",
  "subject": "Inorganic Chemistry",
  "see_also": [
    "pyrolysis"
  ],
  "references": [
    "PAC, 1995, 67, 473. 'Recommended terminology for the description of carbon as a solid (IUPAC Recommendations 1995)' on page 480 (https://doi.org/10.1351/pac199567030473)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/carbon-cenospheres/"
}