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Related Concept Videos

Catalysis02:50

Catalysis

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The presence of a catalyst affects the rate of a chemical reaction. A catalyst is a substance that can increase the reaction rate without being consumed during the process. A basic comprehension of a catalysts’ role during chemical reactions can be understood from the concept of reaction mechanisms and energy diagrams.
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Accelerated Catalyst Development via Kinetically Controlled Solid-State Laser Synthesis and Automated Electrochemical

Mattis Goßler1,2, Huize Wang1,2, Joanna Przybysz1,3

  • 1Helmholtz Institute Erlangen-Nürnberg For Renewable Energy, Forschungszentrum Jülich GmbH, Erlangen, Germany.

Small (Weinheim an Der Bergstrasse, Germany)
|December 26, 2025
PubMed
Summary

A new laser-based method rapidly synthesizes supported metal nanoparticles at ambient conditions, offering precise control over size and distribution for enhanced catalytic performance. This approach accelerates catalyst discovery and screening.

Keywords:
accelerating catalyst developmentautomationelectrocatalysislaser‐induced synthesisnanoparticles

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Catalysis

Background:

  • Wet chemical methods for nanoparticle synthesis often require harsh conditions and large solvent volumes.
  • Precise control over nanoparticle size and distribution is crucial for catalytic activity and stability.

Purpose of the Study:

  • To develop a rapid, ambient-condition laser-based synthesis method for supported metal nanoparticles.
  • To demonstrate precise control over nanoparticle size and distribution homogeneity.
  • To enable high-throughput catalyst discovery and screening.

Main Methods:

  • Laser fluence tuning (power and scanning speed) to control crystallite size distribution of Pt, Pd, and Ir nanoparticles on carbon.
  • Automated Rietveld refinement of X-ray diffraction (XRD) data for rapid crystallite size analysis.
  • Scanning transmission electron microscopy (STEM) for validation.
  • Real-time thermal imaging to correlate laser parameters with nanoparticle formation dynamics.
  • Integration with automated scanning flow cell inductively coupled plasma mass spectrometry (SFC-ICP-MS) for high-throughput screening.

Main Results:

  • Demonstrated precise control over nanoparticle size and distribution homogeneity.
  • Systematic exploration of crystallite size distribution for Pt, Pd, and Ir nanoparticles.
  • Validation of automated XRD analysis with STEM.
  • Identification of material-specific decomposition thresholds.
  • Successful high-throughput electrochemical screening of Pt catalysts for oxygen reduction reaction (ORR) stability.

Conclusions:

  • The laser-based synthesis method is a scalable and generalizable route for rapid catalyst discovery.
  • This approach offers significant advantages over traditional wet chemical methods.
  • The integration with high-throughput screening platforms accelerates materials development for catalysis.