{
  "abstract": "Resource-efficient carbon dioxide removal from the atmosphere will require the development of new materials for processes beyond carbon capture and utilisation. One high-potential pathway for such negative emission technologies is the electrochemical reduction of CO 2 to storable products such as graphitic carbon. Although this can be achieved by employing an electrode made of cerium particles in a liquid gallium-indium-tin matrix, this electrocatalytic pathway currently suffers from comparatively low faradaic efficiencies (FE). In this work, we investigate the temperature dependence of electrochemical CO 2 -reduction to solid carbon on this liquid-metal. An increase in temperature of up to 50 ◦ C leads to significantly higher FEs. A variation of applied potentials leads to a temperature-dependent exfoliation of the product. Moreover, a change in the morphology of the solid carbon product species, from carbon black-like particles, over graphitic flakes to fibers can be induced by varying the operating conditions. From a practical standpoint, the temperature range, we find for optimum FE, lies in the range that can be achieved through thermal coupling with photovoltaic solar cells, suggesting co-benefits of photovoltaics-driven, electrochemical carbon dioxide removal.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 4,
  "authors": [
    {
      "name": "Miriam Übele",
      "orcid": "0009-0003-1077-7657"
    },
    {
      "name": "Daniel Lörch",
      "orcid": "0009-0006-8999-5068"
    },
    {
      "name": "Holger Euchner",
      "orcid": "0000-0003-2287-6970"
    },
    {
      "name": "Matthias M. May",
      "orcid": "0000-0002-1252-806X"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/6n9tnqxcybwvq.bib",
  "cited_by": 0,
  "doi": "10.26434/chemrxiv.15008319/v1",
  "fulltext_url": null,
  "id": "6n9tnqxcybwvq",
  "issns": [],
  "landing_url": "https://chemrxiv.org/doi/full/10.26434/chemrxiv.15008319/v1",
  "language": null,
  "licence": "CC-BY-NC-ND",
  "licence_label": "CC BY-NC-ND",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2105|CO2 Reduction Techniques and Catalysts"
    ]
  ],
  "openalex": "W7208720814",
  "pdf_url": null,
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-04",
  "publisher": "American Chemical Society (ACS)",
  "ris": "https://research.draconitic.com/paper/6n9tnqxcybwvq.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:17Z",
      "native_id": "10.26434/chemrxiv.15008319",
      "source": "chemrxiv",
      "url": "https://chemrxiv.org/doi/full/10.26434/chemrxiv.15008319/v1"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "source:chemrxiv",
      "subfield": "general"
    }
  ],
  "title": "Temperature-and potential-induced exfoliation of electrochemically produced solid carbon from CO2 on a Ce:GaInSn electrode",
  "title_text": "Temperature-and potential-induced exfoliation of electrochemically produced solid carbon from CO2 on a Ce:GaInSn electrode",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:17Z",
  "url": "https://research.draconitic.com/paper/6n9tnqxcybwvq",
  "venue": "ChemRxiv",
  "versions": []
}