{
  "name": "Worked heterogeneous-catalysis examples from Ertl's 2007 Nobel Lecture",
  "description": "Compares three catalytic reactions discussed in G. Ertl's Nobel Lecture (2007): the catalyst material, the year of the first reported or industrial realisation, and the quantitative figure the lecture reports. Compiled by reading the lecture text.",
  "page": "https://casrai.org/guides/heterogeneous-catalysis",
  "publisher": "CASRAI",
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "dateModified": "2026-11-12T21:15:57Z",
  "temporalCoverage": "1823/2007",
  "spatialCoverage": null,
  "columns": [
    {
      "name": "Reaction",
      "unit": "",
      "description": ""
    },
    {
      "name": "Catalyst material",
      "unit": "",
      "description": ""
    },
    {
      "name": "Date discussed in the lecture",
      "unit": "",
      "description": ""
    },
    {
      "name": "Reported figure",
      "unit": "",
      "description": ""
    }
  ],
  "rows": [
    {
      "Reaction": "H2 + O2 → H2O",
      "Catalyst material": "Finely divided platinum powder",
      "Date discussed in the lecture": "1823 (Döbereiner)",
      "Reported figure": "Platinum unaltered"
    },
    {
      "Reaction": "N2 + 3H2 → 2NH3",
      "Catalyst material": "Osmium (laboratory); promoted iron (industrial)",
      "Date discussed in the lecture": "1909 (laboratory, Haber); 1913 (first industrial plant)",
      "Reported figure": "About 20 m2/g specific surface area; N2 sticking coefficient on Fe about 10^-6"
    },
    {
      "Reaction": "2CO + O2 → 2CO2",
      "Catalyst material": "Platinum-group metal particles",
      "Date discussed in the lecture": "c. 1970 (rate oscillations on Pt reported)",
      "Reported figure": "Activation barrier about 100 kJ/mol; operates at 450 K or above"
    }
  ],
  "sources": [
    {
      "title": "Ertl, Reactions at Surfaces: From Atoms to Complexity (Nobel Lecture)",
      "url": "https://www.nobelprize.org/uploads/2018/06/ertl_lecture.pdf",
      "accessed": "2026-11-12"
    }
  ]
}