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Core–Shell IrPt nanoalloy on La/Ni–Co3O4 for high‑performance bifunctional PEM electrolysis with ultralow noble metal loading

09.24.25 | Shanghai Jiao Tong University Journal Center

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Core–Shell IrPt Nanoalloy on La/Ni–Co3O4 for High-Performance Bifunctional PEM Electrolysis with Ultralow Noble Metal Loading
Core–shell IrPt nanoalloy on La/Ni–Co3O4achieves unprecedented bifunctional activity (2 A cm−2at 1.72 V) in proton exchange membrane water electrolysis (PEMWE) with ultralow loadings (0.075 mg cm−2Ir/Pt at both electrodes).646-h durability in PEMWE cell (5 μV h−1decay) via IrPt-core@IrPtOx-shell synergy, hierarchical pores, and oxygen vacancies for robust electron/mass transfer and active-site stability.In situ X-ray absorption spectroscopy combined with density functional theory unveils Ir–O–Pt Credit: Yifei Liu, Xinmeng Er, Xinyao Wang, Hangxing Ren, Wenchao Wang, Feng Cao, Taiyan Zhang, Pan Liu, Yakun Yuan, Fangbo Yu, Yang Ren, Fuqiang Huang, Wenjiang Ding, Lina Chong.

As green hydrogen scales toward gigawatt production, proton-exchange-membrane water electrolysis (PEMWE) is throttled by scarce, high-loading precious-metal catalysts. Now a Shanghai Jiao Tong University-led team (Profs. Fuqiang Huang, Wenjiang Ding & Lina Chong) reports a record-breaking bifunctional catalyst that slashes iridium and platinum use by >70 % while delivering multi-year durability in a real PEMWE cell.

Why Low-PGM Bifunctional Catalysts Matter

Innovative Design & Features

Applications & Future Outlook

This work proves that sub-0.1 mg cm -2 PGM loadings can still unlock multi-ampere electrolysis, offering an immediately translatable route to affordable, grid-scale green hydrogen. Stay tuned for pilot-scale stack tests from the Chong–Huang–Ding joint laboratory at SJTU!

Nano-Micro Letters

10.1007/s40820-025-01845-7

Experimental study

Core–Shell IrPt Nanoalloy on La/Ni–Co3O4 for High-Performance Bifunctional PEM Electrolysis with Ultralow Noble Metal Loading

14-Jul-2025

Keywords

Electrolysis

Article Information

Journal
Nano-Micro Letters
DOI
10.1007/s40820-025-01845-7
Method of Research
Experimental study
Article Publication Date
2025-07-14
Article Title
Core–Shell IrPt Nanoalloy on La/Ni–Co3O4 for High-Performance Bifunctional PEM Electrolysis with Ultralow Noble Metal Loading

Contact Information

Bowen Li
Shanghai Jiao Tong University Journal Center
qkzx@sjtu.edu.cn

Source

Original Source
https://link.springer.com/article/10.1007/s40820-025-01845-7

How to Cite This Article

APA:
Shanghai Jiao Tong University Journal Center. (2025, September 24). Core–Shell IrPt nanoalloy on La/Ni–Co3O4 for high‑performance bifunctional PEM electrolysis with ultralow noble metal loading. Brightsurf News. https://www.brightsurf.com/news/1ZZ0YK71/coreshell-irpt-nanoalloy-on-lanico3o4-for-highperformance-bifunctional-pem-electrolysis-with-ultralow-noble-metal-loading.html
MLA:
"Core–Shell IrPt nanoalloy on La/Ni–Co3O4 for high‑performance bifunctional PEM electrolysis with ultralow noble metal loading." Brightsurf News, Sep. 24 2025, https://www.brightsurf.com/news/1ZZ0YK71/coreshell-irpt-nanoalloy-on-lanico3o4-for-highperformance-bifunctional-pem-electrolysis-with-ultralow-noble-metal-loading.html.