{
  "abstract": "Green hydrogen is expected to play a major role in the decarbonisation of hard-to-electrify sectors such as shipping, aviation, steel, and fertiliser. Cost effective acidic water electrolysis to produce green hydrogen requires active, stable non-noble metal oxide catalysts, however non-noble metal oxides tend to be unstable at oxidative potentials in acidic media. In this work we show that Sn doped Co 3 O 4 exhibits improved activity, while using an ultrathin TiO 2 overlayer improves stability greatly without hindering activity. The maximal activity, at 5% Sn content, was comparable to the state-of-the-art for non-noble PEM anode catalysts, while the maximal stabilising effect produced by the overlayer was more than eightfold.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Chemistry, University of Copenhagen, Universitetsparken 5, Copenhagen, Denmark, 2100",
    "Niels Bohr Institute",
    "University of Copenhagen"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 9,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "András Kozák"
    },
    {
      "affs": [
        0
      ],
      "name": "Georgios K. Stavroglou"
    },
    {
      "affs": [
        0
      ],
      "name": "Julie B. Koefoed"
    },
    {
      "affs": [
        0
      ],
      "name": "Albin Mustafi"
    },
    {
      "affs": [
        0
      ],
      "name": "Gustav Stausbøll Hedemark"
    },
    {
      "affs": [
        1,
        2
      ],
      "name": "Charalampos Lampadaris"
    },
    {
      "affs": [
        0
      ],
      "name": "Henrik H. Kristoffersen"
    },
    {
      "affs": [
        0
      ],
      "name": "Jan Rossmeisl"
    },
    {
      "affs": [
        0
      ],
      "name": "Soren B. Scott"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/3k94ns0yyxwac.bib",
  "cited_by": 0,
  "doi": "10.26434/chemrxiv.15009984/v1",
  "fulltext_url": null,
  "id": "3k94ns0yyxwac",
  "issns": [],
  "landing_url": "https://chemrxiv.org/doi/full/10.26434/chemrxiv.15009984/v1",
  "language": null,
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2105|Electrocatalysts for Energy Conversion"
    ]
  ],
  "openalex": "W7220684991",
  "pdf_url": "https://chemrxiv.org/doi/pdf/10.26434/chemrxiv.15009984/v1",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-06",
  "publisher": "American Chemical Society (ACS)",
  "ris": "https://research.draconitic.com/paper/3k94ns0yyxwac.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:22Z",
      "native_id": "10.26434/chemrxiv.15009984",
      "source": "chemrxiv",
      "url": "https://chemrxiv.org/doi/full/10.26434/chemrxiv.15009984/v1"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2105|Electrocatalysts for Energy Conversion",
      "subfield": "electrochemistry-energy"
    }
  ],
  "title": "TiO2 as active site and protective layer on Sn doped spinel cobalt oxide for acidic OER",
  "title_text": "TiO2 as active site and protective layer on Sn doped spinel cobalt oxide for acidic OER",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:22Z",
  "url": "https://research.draconitic.com/paper/3k94ns0yyxwac",
  "venue": "ChemRxiv",
  "versions": []
}