{
  "abstract": "Tailoring the surface morphology of electrocatalysts is one potential opportunity for improving the hydrogen evolution reaction (HER) in alkaline media. Direct laser interference patterning (DLIP) emerged as a promising surface engineering technique for enhancing the HER performance of nickel electrocatalysts in alkaline media. In this study, DLIP is employed to fabricate periodic line-like microstructures on Ni electrodes using a picosecond-pulsed laser system (λ = 1064 nm, τ = 70 ps). By varying cumulated laser fluence up to 2.4 kJ cm⁻², a maximum structure depth of 2.35 ± 0.04 μm and interfacial area ratio up to 87% is reached. HER is evaluated by linear sweep voltammetry (LSV) and electrochemical impedance spectroscopy (EIS) at 22 and 60 °C. The DLIP-structured electrodes exhibit significantly enhanced HER activity compared with untreated Ni, showing overpotential reductions of up to 28% at 22 °C and 53% at 60 °C, in conjunction with an increase in electrochemically active surface area (ECSA) from 2.24 to 31.04 cm² at 22 °C and from 1.95 to 74.84 cm² at 60 °C, respectively. These findings highlight the favorable interplay between DLIP-induced surface modification and thermally enhanced HER kinetics.",
  "abstract_shown": true,
  "affiliations": [
    "Institut für Fertigungstechnik Technische Universität Dresden Dresden Germany.",
    "Fraunhofer-Institut für Werkstoff- und Strahltechnik IWS Dresden Germany."
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 4,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Mayla Selene Barrientos",
      "orcid": "0009-0002-7246-5977"
    },
    {
      "affs": [
        0
      ],
      "name": "Lis Geraldine Zschach",
      "orcid": "0000-0002-9509-7487"
    },
    {
      "affs": [
        0
      ],
      "name": "Robert Baumann",
      "orcid": "0000-0002-8589-4685"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Andrés Fabián Lasagni",
      "orcid": "0000-0003-4333-4636"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/8nzjd2n4159y3.bib",
  "cited_by": 0,
  "doi": "10.1002/smsc.70426",
  "fulltext_url": "https://europepmc.org/articles/PMC13696023",
  "id": "8nzjd2n4159y3",
  "issns": [
    "2688-4046"
  ],
  "landing_url": "https://europepmc.org/article/MED/42928922",
  "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": [
    [
      "openalex",
      "2105|Electrocatalysts for Energy Conversion"
    ]
  ],
  "openalex": "W7223571228",
  "pdf_url": "https://europepmc.org/articles/PMC13696023?pdf=render",
  "pmcid": "PMC13696023",
  "pmid": "42928922",
  "published": "2026-10-25",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/8nzjd2n4159y3.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:21:18Z",
      "native_id": "MED:42928922",
      "source": "europepmc",
      "url": "https://europepmc.org/article/MED/42928922"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2105|Electrocatalysts for Energy Conversion",
      "subfield": "electrochemistry-energy"
    }
  ],
  "title": "Laser-Structured Nickel Electrodes for Enhanced Hydrogen Evolution Kinetics in Alkaline Media at Elevated Temperature.",
  "title_text": "Laser-Structured Nickel Electrodes for Enhanced Hydrogen Evolution Kinetics in Alkaline Media at Elevated Temperature.",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:21:18Z",
  "url": "https://research.draconitic.com/paper/8nzjd2n4159y3",
  "venue": "Small science",
  "versions": []
}