Platinum‐Decorated Laser‐Induced Graphene Electrodes: Optimizing Hydrogen Evolution Reaction Catalysis through Minimal Platinum Loading
The hydrogen evolution reaction (HER)represents a cornerstone process for sustainable hydrogen production. This study explores laser‐induced graphene (LIG) electrodes doped with platinum (Pt) nanoclusters deposited via magnetron sputtering, focusing on the relationship between deposition time, structural changes, and catalytic activity. The electrodes demonstrate superior HER performance, with Pt@LIG60s achieving an overpotential of 116 mV at −10 mA cm –2 and a mass activity of 14 A mg –1 at 100 mV, outperforming commercial Pt/C catalysts. Raman spectroscopy reveals an optimal defect density (I D /I G ≈ 1.17) and enhanced Pt‐LIG interactions at 60 s of deposition. XPS analysis confirms the presence of Pt 2+ species strongly anchored to LIG defect sites, facilitating efficient hydrogen adsorption and desorption. This study highlights the potential of minimal Pt loading on LIG substrates for cost‐effective and high efficiency HER catalysis.
Authors
- Giovanna Machado (ORCID: https://orcid.org/0000-0002-9058-3056)
- Otávio A. L. Alves (ORCID: https://orcid.org/0000-0002-7831-1533)
- Anderson Thesing (ORCID: https://orcid.org/0000-0002-3655-9936)
- Thiago A. S. Soares (ORCID: https://orcid.org/0000-0001-6383-5476)
- Emerson C. Kohlrausch (ORCID: https://orcid.org/0000-0001-5767-2076)
- Jesum Alves Fernandes (ORCID: https://orcid.org/0000-0002-0468-7343)
- Beatriz S. G. Xavier (ORCID: https://orcid.org/0009-0004-3650-5729)
Institutions
- Universidade Federal do Rio Grande do Sul (BR)
- University of Nottingham (GB)
- Universidade Federal de Pernambuco (BR)
- Centro de Tecnologias Estratégicas do Nordeste (BR)
- Center for Strategic Research (RU)
Publication Details
- Journal
- ChemNanoMat
- Published
- 2025-11-02
- DOI
- https://doi.org/10.1002/cnma.202500464
- Primary Topic
- Electrocatalysts for Energy Conversion
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
- Ministério da Ciência, Tecnologia e Inovação
- Conselho Nacional de Desenvolvimento Científico e Tecnológico
- Financiadora de Estudos e Projetos
- Fundação de Amparo à Ciência e Tecnologia do Estado de Pernambuco
- Centro de Tecnologias Estratégicas do Nordeste
- Engineering and Physical Sciences Research Council
- Laboratório Nacional de Luz Síncrotron