{
  "abstract": "Marine selective catalytic reduction (SCR) systems are widely used to comply with stringent NOx emission limits, yet the long-term deterioration of catalysts under traceable real-world ship operation remains insufficiently documented. In this study, V-based SCR catalysts were recovered from the generator-engine SCR system of the training ship T/S SEGERO after approximately 1000 and 3600 h of actual vessel operation and compared with a fresh reference. The field-aged catalysts were evaluated by visual inspection, pressure-drop measurements, SEM–EDS, ICP-OES, N2 physisorption, and laboratory NH3-SCR activity testing. After 3600 h, localized carbonaceous and inorganic deposits were observed together with an approximately 9–18% increase in pressure drop relative to the fresh catalyst. Ca, P, and Zn accumulation increased with field exposure, while Ca and S showed spatial co-localization at the catalyst surface. The BET surface area decreased by approximately 10% after 1000 h and 35% after 3600 h. Relative DeNOx activity remained close to that of the corresponding fresh reference after 1000 h but was lower after 3600 h, with mean reductions of 8.3–13.3% in the first layer and 2.0–5.9% in the second layer across 300–400 °C. These results demonstrate the value of a training vessel as a traceable longitudinal platform for linking marine operating history with catalyst deterioration.",
  "abstract_shown": true,
  "affiliations": [
    "Automotive and Environmental Catalyst Development Team, Heesung Catalysts Corporation, Siheung 15088, Republic of Korea",
    "Division of Coast Guard, Mokpo National Maritime University, Mokpo 58628, Republic of Korea"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 2,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Daekun Kim",
      "orcid": "0000-0003-2662-6741"
    },
    {
      "affs": [
        1
      ],
      "name": "Woo-Seok Jeon",
      "orcid": "0009-0005-6155-1492"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/2dsx0xx12gcwv.bib",
  "cited_by": 0,
  "doi": "10.3390/catal16110973",
  "fulltext_url": null,
  "id": "2dsx0xx12gcwv",
  "issns": [
    "2073-4344"
  ],
  "landing_url": "https://www.mdpi.com/2073-4344/16/11/973",
  "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": null,
  "pdf_url": null,
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-31",
  "publisher": "MDPI AG",
  "ris": "https://research.draconitic.com/paper/2dsx0xx12gcwv.ris",
  "sources": [
    {
      "first_seen": "2026-11-05T00:20:53Z",
      "native_id": "10.3390/catal16110973",
      "source": "crossref",
      "url": "https://www.mdpi.com/2073-4344/16/11/973"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "issn:2073-4344",
      "subfield": "catalysis"
    }
  ],
  "title": "Characterization of Field Deterioration in V-Based SCR Catalysts Retrieved from an Operating Marine Vessel",
  "title_text": "Characterization of Field Deterioration in V-Based SCR Catalysts Retrieved from an Operating Marine Vessel",
  "type": "peer-reviewed",
  "updated_at": "2026-11-06T00:21:09Z",
  "url": "https://research.draconitic.com/paper/2dsx0xx12gcwv",
  "venue": "Catalysts",
  "versions": []
}