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Updated: Dec 29, 2025

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Core-Shell Nanostructure-Enhanced Raman Spectroscopy for Surface Catalysis.

Hua Zhang1, Sai Duan2, Petar M Radjenovic1

  • 1College of Materials, Fujian Key Laboratory of Advanced Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Energy, Xiamen University, Xiamen 361005, China.

Accounts of Chemical Research
|February 8, 2020
PubMed
Summary
This summary is machine-generated.

Surface-enhanced Raman spectroscopy (SERS) limitations in catalysis were overcome using core-shell nanostructures. New methods enable in situ study of diverse catalytic materials and reactions, revealing molecular-level mechanisms.

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Area of Science:

  • Surface science
  • Spectroscopy
  • Catalysis research

Background:

  • Rational catalyst design requires understanding structure-activity relationships and reaction mechanisms.
  • In situ monitoring of dynamic reactions using surface-sensitive techniques is crucial.
  • Traditional Surface-Enhanced Raman Spectroscopy (SERS) is limited by material and morphology constraints, hindering its application in catalysis.

Purpose of the Study:

  • To overcome material and morphology limitations in SERS for catalysis studies.
  • To develop and apply novel SERS methodologies for in situ monitoring of catalytic processes.
  • To enable the study of transition metals, nonmetal materials, single crystals, and practical nanocatalysts using SERS.

Main Methods:

  • Utilizing core-shell nanostructures as versatile SERS substrates.
  • Developing and applying strategies like "borrowing", shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS), and SHINERS-satellite.
  • Combining SERS with density functional theory and other in situ techniques.

Main Results:

  • Successfully enabled in situ SERS tracking of catalysis on model single-crystal surfaces and practical nanocatalysts.
  • Obtained direct spectroscopic evidence of key catalytic intermediates previously undetectable.
  • Revealed molecular-level reaction mechanisms and structure-activity relationships for important reactions like ORR, HER, and CO oxidation.

Conclusions:

  • Core-shell nanostructure-enhanced Raman spectroscopies significantly advance SERS applications in catalysis.
  • These methods facilitate in situ studies across various catalytic systems, from model to practical, and different interfaces.
  • Future SERS in catalysis should focus on single-molecule/atom level in situ dynamic studies for deeper mechanistic insights.