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January 1, 2025Journal of Materials Chemistry AOpen Access

Controlled distribution of both Pt nanoparticles and ionomer in self-supported nanoporous carbon scaffolds significantly enhances oxygen reduction kinetics and stability

Marwa Atwa Shicheng Xu Xiaoan Li Samuel Dull Zhaoxuan Wang Haoyang Yu Rui Tang Timothy Goh Yunha Jung Mehrdad T. Kiani Markus Joakim Lid Hirotomo Nishihara Fritz B. Prinz Viola Birss

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Key Points

Remarkable oxygen reduction kinetics and stability are achieved by managing the microenvironments of Pt nanoparticles and ionomer.
The controlled placement of Pt nanoparticles in a unique scaffold boosts performance metrics significantly during operation.
Utilizing nanoporous carbon scaffolds allows for proper management and distribution of catalyst elements in the fuel cell design.
Findings suggest that specific arrangements in the cathode catalyst layer may lead to improved electrochemical performance.

Implication

Controlled distribution of Pt nanoparticles and ionomer in PEM fuel cells enhances ORR kinetics and stability.

Abstract

Keeping Pt NPs and Nafion in their own microenvironments in a PEM fuel cell cathode catalyst layer results in exceptional ORR kinetics and stability.

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Cite This Study

Atwa et al. (2025) studied this question.

synapsesocial.com/papers/68c198cd9b7b07f3a061ad7e https://doi.org/10.1039/d5ta04830c

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Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

1Ionomer-free Pt Microenvironment in Bimodal Carbon Scaffolds Generates Exceptional Oxygen Reduction Mass Activity in PEM Fuel Cells2024 · 1 citations
2Boosting Ionomer Oxygen Transport via Pore Confinement in Carbon Supports for Low-Pt Fuel CellsOriginal Research · 2026
3Strong Interaction between Titanium Carbonitride Embedded in Mesoporous Carbon Nanofibers and Pt Enables Durable Oxygen Reduction2024 · 21 citations
4Optimizing Ionomer Coverage in Solid Carbon-Supported Catalyst toward High Performance for Proton Exchange Membrane Fuel Cells2024 · 13 citations
5Durable Fuel Cell Cathode Enabled by Pt Embedded Nanoscale Carbon Network via a Scalable ProcessOriginal Research · 2026

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