{
  "abstract": "Screening solid sorbents for CO₂ capture by the standard reaction Gibbs energy, ΔG°, or its turnover temperature does not show how far carbonation proceeds in a dilute gas charge. Established Gibbs-energy minimization is applied explicitly along the reaction extent ξ for 23 solid-gas carbonation reactions from six sorbent families. Gas-phase stoichiometry separates the reactions into three classes, whose profile shapes also depend on the initial charge. In Class I, where CO₂ is the only gaseous participant (18 reactions), an undiluted feed fixes the gas mole fraction, makes G linear in ξ and gives binary equilibrium except at the transition; an inert diluent instead depletes CO₂ along the reaction coordinate and permits partial conversion. Moving from pure CO₂ to 4% CO₂ at 1 bar lowers the boundary to the dilute-feed 50% conversion point by a median 93.8 K across 16 reactions with located inputs. R6 and R7 remain provisional and are excluded from that aggregate. Selected-source sensitivities give 93.8-94.3 K; the wider JANAF magnesite enthalpy interval gives 92.4-95.2 K, with other inputs fixed. These conditional ranges are not comprehensive confidence intervals. At 15% CO₂ and 1 bar, the CaO 90% boundary is 941.6 K. Four Class II reactions release H₂O(g) and are curved without inert; the Class III reaction consumes H₂O(g), and has a linear profile only for an undiluted stoichiometric CO₂/H₂O charge. The database records 104 thermochemical entries for 32 species. Literature comparisons and numerical verification are reported separately. The screen assumes pure phases and single reactions; the Na₂CO₃/NaHCO₃ route and Li₈SiO₆ are excluded because sufficiently complete, traceable inputs were not assembled.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Chemical and Materials Engineering, Faculty of Engineering, King Abdulaziz University Jeddah 21589 Saudi Arabia aaaaltrki@kau.edu.sa.",
    "Center of Research Excellence in Renewable Energy and Power Systems, King Abdulaziz University Jeddah 21589 Saudi Arabia."
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 1,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "Abdulaziz A Alturki",
      "orcid": "0000-0001-5901-7323"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/1z4vzbh4he91b.bib",
  "cited_by": 0,
  "doi": "10.1039/d6ra07742k",
  "fulltext_url": "https://europepmc.org/articles/PMC13685540",
  "id": "1z4vzbh4he91b",
  "issns": [
    "2046-2069"
  ],
  "landing_url": "https://europepmc.org/article/MED/42909877",
  "language": "eng",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "heading",
      "Chemistry"
    ],
    [
      "openalex",
      "2305|CO2 Sequestration and Geologic Interactions"
    ]
  ],
  "openalex": "W7223105865",
  "pdf_url": "https://europepmc.org/articles/PMC13685540?pdf=render",
  "pmcid": "PMC13685540",
  "pmid": "42909877",
  "published": "2026-10-21",
  "publisher": "Royal Society of Chemistry",
  "ris": "https://research.draconitic.com/paper/1z4vzbh4he91b.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:20:10Z",
      "native_id": "MED:42909877",
      "source": "europepmc",
      "url": "https://europepmc.org/article/MED/42909877"
    },
    {
      "first_seen": "2026-11-07T12:23:37Z",
      "native_id": "PMC13685540",
      "source": "pmc",
      "url": "https://doi.org/10.1039/d6ra07742k"
    }
  ],
  "subjects": [
    {
      "field": "earth",
      "origin": "openalex:2305|CO2 Sequestration and Geologic Interactions",
      "subfield": "environmental-science"
    }
  ],
  "title": "Thermodynamic screening of solid-gas CO₂ mineral carbonation: a provenance-traceable Gibbs-energy framework across 23 reactions.",
  "title_text": "Thermodynamic screening of solid-gas CO₂ mineral carbonation: a provenance-traceable Gibbs-energy framework across 23 reactions.",
  "type": "peer-reviewed",
  "updated_at": "2026-11-08T12:21:05Z",
  "url": "https://research.draconitic.com/paper/1z4vzbh4he91b",
  "venue": "RSC advances",
  "versions": []
}