{
  "abstract": "The selective oxidation of biomass-derived 5-hydroxymethylfurfural (HMF) into highvalue intermediates and 2,5-furandicarboxylic acid (FDCA) is a key process in sustainable polymer manufacturing. However, conventional thermal processes often require harsh conditions that promote non-selective degradation or high-energy demand. Herein, we establish a comprehensive structure-light-reactivity relationship for the photo-assisted oxidation of HMF in water by systematically comparing zirconia-supported Au-Pd alloy and core-shell nanoarchitectures under thermal and photocatalytic conditions. Monochromatic irradiation at 365, 450, and 523 nm was employed to decouple the contributions of UV photolysis, visible-light activation, and localized surface plasmon resonance (LSPR) of gold. We identify the surface Pd density as the primary structural descriptor governing oxidation depth, while the nanoarchitecture dictates the light-harvesting mechanism. Under thermal conditions, the alloy configuration dominates through synergistic electronic and geometric ensemble effects. Intriguingly, this catalytic ranking undergoes a fundamental reversal under 450 nm irradiation, with the Pd-rich core-shell architecture (AuPd500@ZrO2) outperforming the alloy and achieving near-complete HMF conversion (99.1%), together with significant selectivity toward FDCA (24.9%) and FFCA (25.9%). At 523 nm, close to the Au LSPR maximum, the ranking reverses again in favor of the alloy configuration. This double reversal demonstrated a wavelength-gated reaction steering mechanism where, for a fixed Au-Pd composition, nanoarchitecture alone determines the activity and selectivity. Crucially, the wavelength-dependent response enables precise, external control over product distributions without altering the baseline reaction parameters. Operating in an aqueous medium under mild conditions with low precious-metal loadings, this work demonstrates that combining rational nanostructure design with targeted spectral inputs offers a powerful tool for overcoming conventional thermal Sabatier limitations in renewable carbon upgrading.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 8,
  "authors": [
    {
      "name": "Filippo Pieretti"
    },
    {
      "name": "Leonardo Agnolon"
    },
    {
      "name": "Arthur Reymond"
    },
    {
      "name": "Ibrahim Abdelsalam"
    },
    {
      "name": "Almudena Marti"
    },
    {
      "name": "Nikolaos Dimitratos"
    },
    {
      "name": "Pedro H.C. Camargo"
    },
    {
      "name": "Robert Wojcieszak"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/6d8q4wr9n4q4a.bib",
  "cited_by": 0,
  "doi": "10.1016/j.mtcomm.2026.116309",
  "fulltext_url": null,
  "id": "6d8q4wr9n4q4a",
  "issns": [
    "2352-4928"
  ],
  "landing_url": "https://hal.science/hal-05779576v1",
  "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"
    ],
    [
      "openalex",
      "2105|Advanced Photocatalysis Techniques"
    ]
  ],
  "openalex": "W7220362269",
  "pdf_url": "https://hal.science/hal-05779576/document",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-05",
  "publisher": "Elsevier",
  "ris": "https://research.draconitic.com/paper/6d8q4wr9n4q4a.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:48Z",
      "native_id": "hal-05779576",
      "source": "hal",
      "url": "https://hal.science/hal-05779576v1"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "hal:0.chim",
      "subfield": "general"
    }
  ],
  "title": "Spectral-architectural tuning of Au–Pd nanocatalysts for on-demand photocatalytic HMF oxidation",
  "title_text": "Spectral-architectural tuning of Au–Pd nanocatalysts for on-demand photocatalytic HMF oxidation",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:48Z",
  "url": "https://research.draconitic.com/paper/6d8q4wr9n4q4a",
  "venue": "Materials Today Communications",
  "versions": []
}