{
  "abstract": "Using potential pulses in Cu-catalyzed CO₂ electroreduction (CO₂RR) has recently shown great promise in steering product selectivity. However, the effect of these pulses on the catalyst structure and, therefore, the formation of C₁ and C₂ products remain unclear. Herein, we altered the applied potential of the anodic pulse and varied the duration of the cathodic CO₂RR pulse to investigate the effect of both the oxidation state and restructuring of an oxide-derived Cu nanoparticle catalyst on the CO₂RR. Shorter cathodic pulses and a higher anodic pulse potential led to a higher ethanol-to-ethylene Faradaic efficiency (FE) ratio, an increase in the C₁ FE, and a suppression of the hydrogen evolution reaction (HER). We tracked the structural evolution of the CuO catalyst by in situ X-ray absorption spectroscopy (XAS) during the (pulsed) CO₂RR. The CuO catalyst was fully reduced under potentiostatic conditions, whereas residual CuO x was detected during pulsed CO₂ electrolysis. Quasi-in situ X-ray photoelectron spectroscopy (XPS) further emphasized that the surface of the Cu catalyst was significantly impacted by the application of potential pulses, whereby a higher fraction of CuO x was observed with the application of shorter cathodic pulses and higher anodic pulse potentials. Moreover, X-ray diffraction (XRD) and transmission electron microscopy (TEM) showed that sintering and defect formation took place during pulsed CO₂RR, resulting in an irreversible morphological change, which was associated with the enhanced formation of C₁ products.",
  "abstract_shown": true,
  "affiliations": [
    "Laboratory of Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.",
    "Eindhoven Institute of Renewable Energy Systems (EIRES), Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands."
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 6,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Bianca Ligt"
    },
    {
      "affs": [
        0
      ],
      "name": "Jérôme F M Simons"
    },
    {
      "affs": [
        0
      ],
      "name": "Jason M J J Heinrichs",
      "orcid": "0000-0002-2128-8782"
    },
    {
      "affs": [
        0
      ],
      "name": "Laura B Donk",
      "orcid": "0000-0001-6342-9064"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Marta Costa Figueiredo",
      "orcid": "0000-0001-9612-8698"
    },
    {
      "affs": [
        0
      ],
      "name": "Emiel J M Hensen",
      "orcid": "0000-0002-9754-2417"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/4a9h8cg1kpckd.bib",
  "cited_by": 0,
  "doi": "10.1021/acs.jpcc.6c05013",
  "fulltext_url": "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13726460/?tool=EBI",
  "id": "4a9h8cg1kpckd",
  "issns": [
    "1932-7447",
    "1932-7455"
  ],
  "landing_url": "https://europepmc.org/article/PMC/PMC13726460",
  "language": "eng",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "heading",
      "Article"
    ],
    [
      "heading",
      "C: Chemical and Catalytic Reactivity at Interfaces"
    ],
    [
      "openalex",
      "2105|CO2 Reduction Techniques and Catalysts"
    ]
  ],
  "openalex": "W7222947854",
  "pdf_url": "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13726460/pdf/?tool=EBI",
  "pmcid": "PMC13726460",
  "pmid": "42974450",
  "published": "2026-10-19",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/4a9h8cg1kpckd.ris",
  "sources": [
    {
      "first_seen": "2026-11-03T15:20:51Z",
      "native_id": "PMC:PMC13726460",
      "source": "europepmc",
      "url": "https://europepmc.org/article/PMC/PMC13726460"
    },
    {
      "first_seen": "2026-11-04T15:20:48Z",
      "native_id": "MED:42974450",
      "source": "europepmc",
      "url": "https://europepmc.org/article/MED/42974450"
    },
    {
      "first_seen": "2026-11-05T12:22:48Z",
      "native_id": "PMC13726460",
      "source": "pmc",
      "url": "https://doi.org/10.1021/acs.jpcc.6c05013"
    }
  ],
  "subjects": [],
  "title": "Impact of Pulsed CO2 Electrolysis on Surface Structures and Product Distribution for Oxide-Derived Cu",
  "title_text": "Impact of Pulsed CO2 Electrolysis on Surface Structures and Product Distribution for Oxide-Derived Cu",
  "type": "peer-reviewed",
  "updated_at": "2026-11-06T12:22:25Z",
  "url": "https://research.draconitic.com/paper/4a9h8cg1kpckd",
  "venue": "The journal of physical chemistry. C, Nanomaterials and interfaces",
  "versions": []
}