{
  "abstract": "Efficient alkaline water splitting requires catalysts for both the oxygen-evolution reaction (OER) and the hydrogen-evolution reaction (HER). Precatalyst reconstruction offers a route to generating active surfaces under operating conditions. Here, we report an ionic iron/platinum-based precatalyst reservoir for alkaline water splitting, prepared by combining anionic iron(III) phthalocyanine-4,4′,4″,4‴-tetrasulfonate (FeTSPc³⁻) with cationic [Pt(NH₃)₄]²⁺ (TP²⁺) species. The resulting FeTSPc/TP ionic solid has limited solubility in alkaline electrolyte and supplies Fe- and Pt-derived species under electrochemical bias. Rather than acting as a persistent molecular bifunctional catalyst, FeTSPc/TP undergoes bias-dependent reconstruction on nickel-foam electrodes. Under anodic conditions, Fe-derived species are associated with the nickel surface, producing a Ni–Fe (oxy)hydroxide-type OER-active layer. Under cathodic conditions, Pt-derived species generate Pt-containing deposits that promote the HER. Compared with bare Ni foam, the FeTSPc/TP system decreases the OER overpotential by approximately 200 mV and the HER overpotential by approximately 80 mV under the tested conditions. The analyses support the formation of distinct catalyst-derived surface deposits at the two electrodes. These results show that a single ionic precatalyst reservoir can deliver different catalyst-forming components to anodic and cathodic surfaces, providing a proof-of-concept strategy for bias-dependent reconstruction during alkaline water splitting.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 10,
  "authors": [
    {
      "name": "Nader Akbari"
    },
    {
      "name": "Sergey K. Zharmukhamedov"
    },
    {
      "name": "Robabeh Bagheri"
    },
    {
      "name": "Mahdieh Maleki"
    },
    {
      "name": "Elena V. Zadneprovskaya"
    },
    {
      "name": "Roman A. Voloshin"
    },
    {
      "name": "Alexei V. Emeline"
    },
    {
      "name": "Detlef W. Bahnemann",
      "orcid": "0000-0001-6064-6653"
    },
    {
      "name": "Suleyman I. Allakhverdiev",
      "orcid": "0000-0002-0452-232X"
    },
    {
      "name": "Mohammad Mahdi Najafpour",
      "orcid": "0000-0001-9732-0016"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/fghqb032djjqf.bib",
  "cited_by": 0,
  "doi": "10.1038/s42004-026-02243-9",
  "fulltext_url": null,
  "id": "fghqb032djjqf",
  "issns": [
    "2399-3669"
  ],
  "landing_url": "https://www.nature.com/articles/s42004-026-02243-9",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2105|Electrocatalysts for Energy Conversion"
    ]
  ],
  "openalex": "W7221366760",
  "pdf_url": "https://www.nature.com/articles/s42004-026-02243-9_reference.pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-10",
  "publisher": "Springer Science and Business Media LLC",
  "ris": "https://research.draconitic.com/paper/fghqb032djjqf.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:51Z",
      "native_id": "10.1038/s42004-026-02243-9",
      "source": "crossref",
      "url": "https://www.nature.com/articles/s42004-026-02243-9"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2105|Electrocatalysts for Energy Conversion",
      "subfield": "electrochemistry-energy"
    }
  ],
  "title": "A targeted ionic iron/platinum-based precatalyst for bias-dependent reconstruction in alkaline water splitting",
  "title_text": "A targeted ionic iron/platinum-based precatalyst for bias-dependent reconstruction in alkaline water splitting",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:51Z",
  "url": "https://research.draconitic.com/paper/fghqb032djjqf",
  "venue": "Communications Chemistry",
  "versions": []
}