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<p>Industrial waste diesel distillate is a by-product rich in polycyclic aromatic hydrocarbons (PAHs). To address the valorization and environmental challenges associated with the industrial waste diesel distillate, this study aims to transform this low-value waste into high-performance materials. It reports a low-cost, low-temperature (750°C) catalytic method to synthesize graphene from waste diesel distillate using melamine sponge scaffolds impregnated with nickel hydroxide. When used as a supercapacitor electrode, the obtained material demonstrated excellent rate capability (55.63% retention) and outstanding cycling stability, retaining 78.9% of its capacitance after 10,000 cycles. This performance vastly surpasses the control (carbonized sponge without catalyst and diesel distillate, 19.98% retention), highlighting an efficient “waste-to-wealth” strategy for producing advanced and sustainable energy storage materials with significant environmental and economic benefits.</p> Graphical Abstract <p>The graphene preparation process from diesel distillate, material characterization and Schematic structure of graphene supercapacitor, with long cycle performance.</p> <p></p>

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Innovative Upcycling of Diesel Distillate to Graphene for Enhanced Supercapacitor Performance

  • 期刊论文

  • 发表日期：

    2025年11月10日

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  • Siyu Yang,
  • Hu Zou,
  • Wenlong Jiang,
  • Zhong Qi,
  • Yuxia Wang,
  • Rui Zhang,
  • Zhengchun Yang,
  • Junjun Shi,
  • Jie He,
  • Peng Pan,
  • Huayi Li

摘要

Industrial waste diesel distillate is a by-product rich in polycyclic aromatic hydrocarbons (PAHs). To address the valorization and environmental challenges associated with the industrial waste diesel distillate, this study aims to transform this low-value waste into high-performance materials. It reports a low-cost, low-temperature (750°C) catalytic method to synthesize graphene from waste diesel distillate using melamine sponge scaffolds impregnated with nickel hydroxide. When used as a supercapacitor electrode, the obtained material demonstrated excellent rate capability (55.63% retention) and outstanding cycling stability, retaining 78.9% of its capacitance after 10,000 cycles. This performance vastly surpasses the control (carbonized sponge without catalyst and diesel distillate, 19.98% retention), highlighting an efficient “waste-to-wealth” strategy for producing advanced and sustainable energy storage materials with significant environmental and economic benefits.

Graphical Abstract

The graphene preparation process from diesel distillate, material characterization and Schematic structure of graphene supercapacitor, with long cycle performance.