Triple‑Layer Porous Transport Layers with Ultra‑High Porosity for Enhanced Oxygen Transport and Catalyst Utilization in Water Electrolysis (IMAGE)

Shanghai Jiao Tong University Journal Center

Triple‑Layer Porous Transport Layers with Ultra‑High Porosity for Enhanced Oxygen Transport and Catalyst Utilization in Water Electrolysis

Caption

  • A novel triple-layer Ti-porous transport layer (PTL), fabricated using a practical and scalable tape casting and roll calendering process, enhances catalyst utilization by increasing interfacial contact area and the triple-phase boundary.
  • The ultra-high porosity (75%) backing layer and graded structure maximize oxygen transport, mitigate oxygen accumulation, and improve reactant accessibility.
  • Electrochemical evaluations demonstrate a 127 mV reduction in voltage at 2 A cm−2 compared to a commercial PTL, accelerating proton exchange membrane water electrolysis commercialization and supporting the transition to sustainable energy.

Credit

Seong Hyun Park, Young Je Park, Seungsoo Jang, Pilyoung Lee, Soobin Yoon, Young-June Park, Chi-Young Jung, Kang Taek Lee.

Usage Restrictions

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License

CC BY-NC-ND

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