{
  "abstract": "Metal production causes 10% of global greenhouse gas emissions, with most metals extracted from oxide ores via fossil-based pyrometallurgy, including melting. Solid-state hydrogen-driven redox reduction is not only a sustainable alternative, but can also be used to integrate reduction, in situ alloying of mixed oxides and microstructure design in one single process. Upon co-reduction of a Fe 2 O 3 –NiO mixture with hydrogen, we report a distinct type of solid–solid catalytic interaction between pre-reduced metal (Ni) and a transient oxide (FeO). This interaction accelerates hydrogen-based reduction by a factor of at least two, highlighting its potential relevance for improving reduction kinetics in hydrogen-based ironmaking and alloy production. Specifically, during hydrogen-driven co-reduction of Fe 2 O 3 and NiO, Ni partitioning takes place across metal–oxide interfaces, driven by interface dynamics, during which restructuring continuously regenerates the catalytic sites that promote H 2 spillover. These findings show that hydrogen-based alloy production is not only more sustainable than fossil-based practices, but can leverage kinetic and commercial advantages through solid–solid catalytic effects.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 7,
  "authors": [
    {
      "name": "Xinren Chen"
    },
    {
      "name": "Baptiste Bienvenu"
    },
    {
      "name": "Tingting Yang"
    },
    {
      "name": "Baptiste Gault"
    },
    {
      "name": "Shaolou Wei"
    },
    {
      "name": "Xuyang Zhou"
    },
    {
      "name": "Dierk Raabe"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/223scm100x830.bib",
  "cited_by": 2,
  "doi": "10.1038/s44160-026-01086-5",
  "fulltext_url": null,
  "id": "223scm100x830",
  "issns": [
    "2731-0582"
  ],
  "landing_url": "https://hal.science/hal-05761962v1",
  "language": "en",
  "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": [
    [
      "hal",
      "0.chim"
    ],
    [
      "hal",
      "1.chim.cata"
    ],
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      "hal",
      "1.chim.inor"
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      "hal",
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    [
      "openalex",
      "2210|Iron and Steelmaking Processes"
    ]
  ],
  "openalex": "W7163897697",
  "pdf_url": "https://hal.science/hal-05761962/document",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-24",
  "publisher": "Springer Nature",
  "ris": "https://research.draconitic.com/paper/223scm100x830.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:40Z",
      "native_id": "hal-05761962",
      "source": "hal",
      "url": "https://hal.science/hal-05761962v1"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "hal:1.chim.cata",
      "subfield": "catalysis"
    },
    {
      "field": "chemistry",
      "origin": "hal:1.chim.inor",
      "subfield": "inorganic"
    },
    {
      "field": "chemistry",
      "origin": "hal:1.chim.mate",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Solid–solid catalysis for sustainable alloy synthesis",
  "title_text": "Solid–solid catalysis for sustainable alloy synthesis",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:40Z",
  "url": "https://research.draconitic.com/paper/223scm100x830",
  "venue": "Nature Synthesis",
  "versions": []
}