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Updated: Apr 14, 2026
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Hydrogen Production and Utilization in a Membrane Reactor
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Ultra-Low Loading Pseudo-Single-Crystal Mesoporous PtPd Catalysts for High-Performance Hydrogen Gas Batteries
Guili Zhao1,2, Hongxu Liu2, Chuye Pan3
1Guangdong Provincial Key Laboratory of New Energy Materials Service Safety, Shenzhen Key Laboratory of Energy Electrocatalytic Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, P. R. China.
Advanced Materials (Deerfield Beach, Fla.)
|April 13, 2026
Summary
Researchers developed a novel pseudo-single-crystal mesoporous Platinum-Palladium (PSCM-PtPd) catalyst for rechargeable hydrogen gas batteries. This cost-effective catalyst significantly improves hydrogen oxidation/evolution reactions, enhancing battery performance and durability for large-scale energy storage.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Rechargeable hydrogen gas batteries offer promising large-scale energy storage solutions due to safety, efficiency, and longevity.
- High cost of catalysts for hydrogen oxidation/evolution reactions (HOR/HER) limits the practical application of these batteries.
Purpose of the Study:
- To develop a cost-effective catalyst with high bifunctional HOR/HER activity for high-performance hydrogen gas batteries.
- To investigate the performance and stability of a novel pseudo-single-crystal mesoporous Platinum-Palladium (PSCM-PtPd) catalyst.
Main Methods:
- Synthesis of a pseudo-single-crystal mesoporous (PSCM) PtPd catalyst.
- Electrochemical characterization of the catalyst's HOR/HER activity.
- Assembly and testing of Ni-H2 batteries using the PSCM-PtPd catalyst at various loadings.
Main Results:
- The PSCM-PtPd catalyst demonstrated superior HOR activity (3.10 A mg-1) and HER performance (34.8 mV overpotential) compared to commercial Pt/C.
- Ni-H2 batteries with PSCM-PtPd achieved high energy efficiency (~85%) and cycling stability (>1000 cycles) even at low catalyst loadings (~10 µg cm-2).
- The PSCM-PtPd based battery achieved a cell cost of ~$105 kWh-1, significantly lower than Pt/C-based batteries (>$700 kWh-1).
Conclusions:
- The PSCM-PtPd catalyst's enhanced activity is attributed to charge transfer and lattice distortion, while stability arises from reduced grain boundaries.
- This novel catalyst offers a viable pathway for developing cost-effective and scalable hydrogen gas batteries for energy storage.
- The findings pave the way for practical, large-scale implementation of advanced energy storage technologies.
Keywords:
HOR/HERPtPd catalysthydrogen gas batterypseudo‐single‐crystal mesoporous structureultra‐low loadingMore Related Videos
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