ArticleNature communications2024
Resolving optimal ionomer interaction in fuel cell electrodes via operando X-ray absorption spectroscopy.
Article in Nature communications, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Microenvironment Engineering as a Design Principle for Suppressing Catalyst Metal Loss.Angewandte Chemie (International ed. in English) · 2026Article
- Carbon Catalyst Supports for Pt-Based Polymer Electrolyte Membrane Fuel Cells: Porosity, Graphitization, and Chemical Modifications.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Review
- Poly(ionic liquid) Ionomers Help Prevent Active Site Aggregation, in Single-Site Oxygen Reduction Catalysts.ACS catalysis · 2024Article
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Authors and funding
7 authors.
Funding
Abstract
To bridge the gap between oxygen reduction electrocatalysts development and their implementation in real proton exchange membrane fuel cell electrodes, an important aspect to be understood is the interaction between the carbon support, the active sites, and the proton conductive ionomer as it greatly affects the local transportations to the catalyst surface. Here we show that three Pt/C catalysts, synthesized using the polyol method with different carbon supports (low surface area Vulcan, high surface area Ketjenblack, and biomass-derived highly ordered mesoporous carbon), revealed significant variations in ionomer-catalyst interactions. The Pt/C catalysts supported on ordered mesoporous carbon derived from biomass showed the best performance under the gas diffusion electrode configuration. Through a unique approach of operando X-ray Absorption Spectroscopy combined with gas sorption analysis, we were able to demonstrate the beneficial effect of mesopore presence for optimal ionomer-catalyst interaction at both molecular and structural level.
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Registered trials
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