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<p>Controlled synthesis of nanocatalytic materials is the cornerstone for better catalysis. In this work, a continuous flow synthesis strategy suitable for large-scale applications to modulate the size of Pt nanoparticles (NPs) via water/ethylene glycol (H<sub>2</sub>O/EG) mixed solvent is reported. The volume ratio of H2O/EG and the average particle size of Pt NPs show a clear linear relationship. By adjusting the mixed solvent volume ratio of H2O/EG, Pt NPs can be flexibly tuned within the range of 2–10&#xa0;nm. By optimizing the size of Pt NPs, the rated power density of membrane electrode assembly (MEA) prepared from Pt NPs catalysts increased by 32% at 0.65&#xa0;V. Better performance is obtained than commercial Pt/C catalysts. This simple, straightforward, and controllable synthesis strategy suitable for stable large-scale production is conducive to the efficient and cost-effective promotion of superior nanocatalytic materials to various catalytic applications in a wide range of fields.</p>

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A controllable synthesis strategy for Pt nanoparticles catalysts toward large-scale applications with water/ethylene glycol mixed solvent-controlled Pt nanoparticles size

  • 期刊论文

  • 发表日期：

    2026年4月22日

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  • Chengcheng Sang,
  • Zhuangzhi Liu,
  • Jiapeng Lu,
  • Cheng Wang,
  • Peng Wang,
  • Wanyi Zhou,
  • Ziyue Ding,
  • Xiaolong Yang

摘要

Controlled synthesis of nanocatalytic materials is the cornerstone for better catalysis. In this work, a continuous flow synthesis strategy suitable for large-scale applications to modulate the size of Pt nanoparticles (NPs) via water/ethylene glycol (H2O/EG) mixed solvent is reported. The volume ratio of H2O/EG and the average particle size of Pt NPs show a clear linear relationship. By adjusting the mixed solvent volume ratio of H2O/EG, Pt NPs can be flexibly tuned within the range of 2–10 nm. By optimizing the size of Pt NPs, the rated power density of membrane electrode assembly (MEA) prepared from Pt NPs catalysts increased by 32% at 0.65 V. Better performance is obtained than commercial Pt/C catalysts. This simple, straightforward, and controllable synthesis strategy suitable for stable large-scale production is conducive to the efficient and cost-effective promotion of superior nanocatalytic materials to various catalytic applications in a wide range of fields.