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Related Concept Videos

Raman Spectroscopy Instrumentation: Overview01:26

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A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
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The underlying principle of Raman spectroscopy is based on the interaction between light and matter, specifically molecules' inelastic scattering of photons. When a monochromatic beam of light, typically from a laser source, interacts with a sample, most scattered light has the same frequency as the incident light. This is known as Rayleigh scattering.
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Heterogeneous Catalysis

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Heterogeneous catalysis involves a catalyst in a different phase from the reactants. It is a process where the catalyst and the reactants are in distinct phases, typically solid and gas or liquid.Most heterogeneous catalysts are metals, metal oxides, or acids. The list includes transition metals like iron (Fe), cobalt (Co), nickel (Ni), palladium (Pd), platinum (Pt), chromium (Cr), manganese (Mn), tungsten (W), silver (Ag), and copper (Cu). These metals possess partially vacant d orbitals that...
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Updated: May 2, 2026

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Probing Heterogeneous Catalytic Reactions via Tip-Enhanced Raman Spectroscopy: Recent Progress and Future

Yusheng Zhang1, Yuqin Xu1, Jing-Juan Xu1

  • 1State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People's Republic of China.

Chemical & Biomedical Imaging
|May 1, 2026
PubMed
Summary
This summary is machine-generated.

Tip-enhanced Raman spectroscopy (TERS) offers nanoscale chemical insights into heterogeneous catalysis, crucial for developing efficient catalysts and energy technologies. This review explores TERS principles and applications in catalysis research.

Keywords:
activation pathwayactive siteschemical selectivityelectrocatalysisheterogeneous catalysisoperando studiesspatial resolutiontip-enhanced Raman spectroscopy

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Area of Science:

  • Chemistry
  • Materials Science
  • Nanotechnology

Background:

  • Heterogeneous catalysis is vital for chemical industries and energy conversion.
  • Understanding catalytic processes at the molecular level is key to catalyst development.
  • Tip-enhanced Raman spectroscopy (TERS) offers high-resolution chemical and topographic data.

Purpose of the Study:

  • To review the fundamental principles of TERS.
  • To highlight TERS applications in heterogeneous catalysis.
  • To discuss challenges and future directions for TERS in catalysis.

Main Methods:

  • TERS combines scanning probe microscopy with plasmon-enhanced Raman spectroscopy.
  • Provides simultaneous chemical and topographic information.
  • Achieves nanoscale spatial resolution and high sensitivity.

Main Results:

  • TERS enables nanoscale chemical characterization of solid catalysts.
  • Facilitates direct structure-performance correlations.
  • Applicable to studying active sites, molecular pathways, efficiency, and selectivity.

Conclusions:

  • TERS is a powerful tool for probing heterogeneous catalysis at the nanoscale.
  • Advancements in TERS can further enhance catalyst design and energy technologies.
  • Future work should focus on overcoming current challenges to expand TERS applications.