{
  "abstract": "Self-assembled metal nanoparticles exsolved from host oxides have gained prominence in catalysis and electrochemistry owing to their exceptional activity and stability 1–3 . Understanding the relation between dopant transport and exsolution is important, as the transport mechanism of dopants toward the surface of the host oxide directly influences exsolution sites, density, and dispersion, ultimately determining catalytic functionality 4–6 . However, the pathways for dopant transport and their interaction with internal defects during exsolution remain unclear because of the complexity of defects hidden in bulk. Here, we reveal the exsolution pathway mediated by dislocation evolution within a host oxide perovskite. By employing in situ Bragg coherent X-ray diffraction imaging and transmission electron microscopy, we show that dislocations nucleate in the bulk interior and propagate to the surface during the reduction of Ru-doped in BaCe 0.85 Y 0.1 Ru 0.05 O 3-δ . Moreover, we verify that the Ru dopant is specifically correlated with the formation of mixed dislocations, which then provide transport pathways for the exsolution of Ru nanoparticles. These findings advance our understanding of dislocation dynamics and support the development of exsolved metal nanoparticles for next-generation catalysts 7,8 .",
  "abstract_shown": true,
  "affiliations": [
    "Center for Ultrafast Phase Transformation, Department of Physics, Sogang University, Seoul, Korea",
    "Center for Energy Materials Research, Korea Institute of Science and Technology, Seoul, Korea",
    "Center for Ultrafast Phase Transformation, Department of Physics, Sogang University, Seoul, Korea. hkim@sogang.ac.kr",
    "Advanced Photon Source, Argonne National Laboratory, Lemont, IL, USA",
    "Advanced Analysis and Data Center, Korea Institute of Science and Technology, Seoul, Korea",
    "Department of Materials Science and Engineering, Seoul National University, Seoul, Korea",
    "Nanomaterials Science and Engineering, Korea University of Science and Technology (UST), KIST Campus, Seoul, Korea",
    "Center for Energy Materials Research, Korea Institute of Science and Technology, Seoul, Korea. hiji@kist.re.kr",
    "Nanomaterials Science and Engineering, Korea University of Science and Technology (UST), KIST Campus, Seoul, Korea. hiji@kist.re.kr",
    "Center for Energy Materials Research, Korea Institute of Science and Technology, Seoul, Korea. dkwon@kist.re.kr"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 14,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Sungwook Choi",
      "orcid": "0000-0001-9847-8755"
    },
    {
      "affs": [
        1
      ],
      "name": "Younghwan Lim"
    },
    {
      "affs": [
        1
      ],
      "name": "Puspendu Guha",
      "orcid": "0000-0001-8100-0819"
    },
    {
      "affs": [
        1,
        2
      ],
      "name": "Hayoung Kim"
    },
    {
      "affs": [
        0
      ],
      "name": "Sungwon Kim",
      "orcid": "0000-0001-8035-1721"
    },
    {
      "affs": [
        0
      ],
      "name": "Sungwon Kim",
      "orcid": "0000-0001-8035-1721"
    },
    {
      "affs": [
        3
      ],
      "name": "Ross Harder"
    },
    {
      "affs": [
        3
      ],
      "name": "Wonsuk Cha",
      "orcid": "0000-0001-8888-4258"
    },
    {
      "affs": [
        4
      ],
      "name": "Hoyoung Suh"
    },
    {
      "affs": [
        5
      ],
      "name": "Jinseok Ryu",
      "orcid": "0000-0002-9558-3469"
    },
    {
      "affs": [
        1,
        6
      ],
      "name": "Sungeun Yang",
      "orcid": "0000-0001-9202-930X"
    },
    {
      "affs": [
        7,
        8
      ],
      "name": "Ho‐Il Ji",
      "orcid": "0000-0002-6194-991X"
    },
    {
      "affs": [
        9
      ],
      "name": "Deok‐Hwang Kwon",
      "orcid": "0000-0002-8944-0883"
    },
    {
      "affs": [
        1,
        2
      ],
      "name": "Hyunjung Kim",
      "orcid": "0000-0001-6211-4888"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/dhpvynwm5rc63.bib",
  "cited_by": 5,
  "doi": "10.1038/s41467-026-73457-7",
  "fulltext_url": null,
  "id": "dhpvynwm5rc63",
  "issns": [
    "2041-1723"
  ],
  "landing_url": "https://doi.org/10.1038/s41467-026-73457-7",
  "language": "en",
  "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",
      "2505|Catalytic Processes in Materials Science"
    ]
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  "openalex": "W7162332442",
  "pdf_url": "https://www.nature.com/articles/s41467-026-73457-7_reference.pdf",
  "pmcid": "PMC13385905",
  "pmid": "42185323",
  "published": "2026-05-25",
  "publisher": "Nature Portfolio",
  "ris": "https://research.draconitic.com/paper/dhpvynwm5rc63.ris",
  "sources": [
    {
      "first_seen": "2026-11-04T13:21:20Z",
      "native_id": "W7162332442",
      "source": "openalex",
      "url": "https://doi.org/10.1038/s41467-026-73457-7"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2505|Catalytic Processes in Materials Science",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Dynamics of dislocation formations and their impacts on exsolution in Ru-doped perovskite oxide",
  "title_text": "Dynamics of dislocation formations and their impacts on exsolution in Ru-doped perovskite oxide",
  "type": "peer-reviewed",
  "updated_at": "2026-11-06T13:20:45Z",
  "url": "https://research.draconitic.com/paper/dhpvynwm5rc63",
  "venue": "Nature Communications",
  "versions": []
}