{
  "abstract": "Methane activation under mild conditions remains one of the most challenging targets in solar-to-chemical conversion. Here, we report a photovoltaic-photocatalyst hybrid strategy that integrates a (Ag,Cu)(In,Ga)Se 2 (ACIGS) solar-cell absorber with a well-documented Au/TiO 2 photocatalyst to enhance photocatalytic oxidative coupling of methane. The ACIGS layer serves as an efficient light harvester and charge supplier, promoting charge transfer to the Au/TiO 2 catalytic layer. The resulting interfacial charge pumping suppresses overall charge recombination, increases charge-carrier availability at the catalytic interface, and facilitates both lattice-oxygen activation and oxygen reduction processes involved in methane conversion. As a result, the Au/TiO 2 -ACIGS catalyst achieves markedly enhanced CH 4 -to-C 2 H 6 performance, delivering ~4-fold (0.69 mmol g -1 h -1 ) and ~3-fold (2.51 mmol g -1 h -1 ) enhancement in batch and flow operations, respectively, compared to bare Au/TiO 2 deposited on glass. The catalytic plate also demonstrates excellent operational stability, enabled by an in-situ oxygen-looping mechanism that continuously regenerates active surface oxygen species. This work highlights the potential of photovoltaic absorbers as active charge-generation platforms for photocatalysis, extending their role beyond conventional solar-energy harvesting. More broadly, the results further open avenues for next-generation solar-cell-assisted photocatalytic platforms for methane upgrading or other key solar-to-fuel reactions.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 10,
  "authors": [
    {
      "name": "Duc Manh Nguyen"
    },
    {
      "name": "Thanh Huyen Vuong"
    },
    {
      "name": "Thomas Tom"
    },
    {
      "name": "Alexandre Fadel"
    },
    {
      "name": "Thomas Roland"
    },
    {
      "name": "Vincent de Waele"
    },
    {
      "name": "Jean-François Guillemoles"
    },
    {
      "name": "Vitaly Ordomsky"
    },
    {
      "name": "Negar Naghavi Fleury"
    },
    {
      "name": "Andrei Khodakov"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/aqmbm8r4acjmy.bib",
  "cited_by": 0,
  "doi": "10.1016/j.apcatb.2026.127239",
  "fulltext_url": null,
  "id": "aqmbm8r4acjmy",
  "issns": [
    "0926-3373",
    "1873-3883"
  ],
  "landing_url": "https://hal.science/hal-05835218v1",
  "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": [
    [
      "hal",
      "0.chim"
    ],
    [
      "hal",
      "0.phys"
    ],
    [
      "hal",
      "1.chim.mate"
    ],
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      "hal",
      "1.chim.theo"
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      "1.phys.cond"
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    [
      "hal",
      "2.phys.cond.cm-ms"
    ],
    [
      "openalex",
      "2105|Advanced Photocatalysis Techniques"
    ]
  ],
  "openalex": "W7168246307",
  "pdf_url": "https://www.sciencedirect.com/science/article/pii/S0926337326008593/pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-22",
  "publisher": "Elsevier [1992-....]",
  "ris": "https://research.draconitic.com/paper/aqmbm8r4acjmy.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:01Z",
      "native_id": "hal-05835218",
      "source": "hal",
      "url": "https://hal.science/hal-05835218v1"
    },
    {
      "first_seen": "2026-11-02T12:20:44Z",
      "native_id": "hal-05847271",
      "source": "hal",
      "url": "https://hal.science/hal-05847271v1"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "hal:1.chim.mate",
      "subfield": "materials-polymers"
    },
    {
      "field": "chemistry",
      "origin": "hal:1.chim.theo",
      "subfield": "theoretical"
    },
    {
      "field": "physics",
      "origin": "hal:1.phys.cond",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Heterojunction engineering powered by CIGS solar cells for boosted photocatalytic methane coupling",
  "title_text": "Heterojunction engineering powered by CIGS solar cells for boosted photocatalytic methane coupling",
  "type": "peer-reviewed",
  "updated_at": "2026-11-03T12:20:17Z",
  "url": "https://research.draconitic.com/paper/aqmbm8r4acjmy",
  "venue": "Applied Catalysis B: Environmental",
  "versions": []
}