International Journal of Hydrogen Energy· 2026Q1
Thermally driven Pt/TiOx interfacial evolution enhances the stability of ultrathin Pt coatings in PEM water electrolyzers
- 0citations
- Q1SCImago
- 2026year
Short summary
Heat-treating ultrathin Pt coatings on Ti substrates enhances their stability in PEM water electrolyzers, reducing cell voltage by 35 mV at 2.0 A cm⁻² and maintaining stable operation for 50 hours.
AI-generated from the title and abstract; the full text is not read.
Key points
- Heat treatment of ultrathin Pt coatings on Ti substrates enhances their electrochemical stability and durability.
- The modified coating reduced cell voltage by 35 mV at 2.0 A cm⁻² and operated stably for 50 hours.
- Heat treatment induces Pt, Ti, and O redistribution, forming a stable interfacial transition region.
- This stable interface facilitates electron transport and suppresses coating degradation.
AI-generated from the title and abstract; the full text is not read.
Abstract
Ultrathin Pt coatings represent a promising strategy for reducing Pt consumption in Ti transport layers for proton exchange membrane water electrolyzers (PEMWE), but their durability is limited by the instability of the Pt/TiO x interface. Herein, a heat-treatment strategy was developed to regulate the Pt/TiO x interface through thermally induced elemental redistribution. Ultrathin Pt coatings were deposited on Ti substrates by magnetron sputtering and heat-treated at different temperatures. Ex-situ characterizations and electrochemical measurements demonstrate that heat treatment significantly enhances the electrochemical stability and durability of the coatings. The modified coating reduces the cell voltage by 35 mV at 2.0 A cm −2 and maintains stable operation for 50 h. Heat treatment promotes Pt, Ti, and O redistribution across the interface, forming a stable interfacial transition region that facilitates electron transport and suppresses coating degradation. This work provides an effective strategy for improving the stability of ultrathin Pt-coated Ti transport layers for PEMWE.
The authors' abstract, as published at the source. International Journal of Hydrogen Energy, 2026 · DOI ↗
Continue with a free account
Ask the paper: 3 free questions a day about this paper; save it, get its citation, new summaries every day for your field. Takeaways are Premium.
Continue free on the webSign in with Google or Apple; no card needed. You come back to this paper.
On your phone:
Field: Renewable Energy, Sustainability and the Environment
Renewable Energy, Sustainability and the EnvironmentEnergy