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Self-supporting laser-induced graphene-based electrodes for efficient OER and 5-hydroxymethylfurfural oxidation

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2025, 35(6), pp.2703~2716
  • DOI : 10.1007/s42823-025-00948-w
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General
  • Received : May 16, 2025
  • Accepted : July 8, 2025
  • Published : December 11, 2025

Xiao Xinyu 1 Li Mingyue 2 Chen Guangmeng 2 Zhou Weihua 1 Zhao Weiwei 2 Liu Xiaoqing 2

1Nanchang University
2Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences

Accredited

ABSTRACT

Improving the oxygen evolution reaction (OER) performance or replacing OER with the value-added conversion of biomass is of great significance for the green hydrogen energy production. In this work, bimetallic species-decorated laser-induced graphene (LIG) was fabricated and demonstrated as the self-supported electrodes towards efficient OER and 5-hydroxymethylfurfural oxidation reaction (HMFOR). Three-dimensional LIG was obtained via one-step irradiation process under ambient conditions, and active metal species were then introduced through electrodeposition, with Ni-based catalyst as the primary catalytic material and Fe and Co as modified metals. Among, LIG-NiFe electrode achieved an extremely low overpotential of 241.7 mV at a current density of 20 mA/cm2 for OER and demonstrated long-term stability. This could be attributed to the promoted formation of Ni3+ active centers by Fe modified and the intrinsic porous structure of LIG providing an enhanced surface area. As for LIG-NiCo, due to the low onset potential of Co for HMF, it could achieve 99.6% HMF conversion and yielded value-added 2, 5-furandicarboxylic acid (FDCA) with a selectivity of 87.1%. Coupled with the merit of facile fabrication of LIG framework, this study demonstrates that LIG-based electrodes assume great practical application value in electrocatalytic reactions.

Citation status

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