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Related Concept Videos

Heterogeneous Catalysis01:22

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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Catalysis02:50

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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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Raman Spectroscopy: Overview01:20

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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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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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Related Experiment Video

Updated: Mar 22, 2026

Author Spotlight: Tracking Electrochemistry on Single Nanoparticles with Surface-Enhanced Raman Scattering Spectroscopy and Microscopy
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Surface- and Tip-Enhanced Raman Spectroscopy in Catalysis.

Thomas Hartman1, Caterina S Wondergem1, Naresh Kumar1,2

  • 1Faculty of Science, Debye Institute for Nanomaterials Science, Utrecht University , Universiteitsweg 99, 3584 CG Utrecht, The Netherlands.

The Journal of Physical Chemistry Letters
|April 15, 2016
PubMed
Summary

Surface- and tip-enhanced Raman spectroscopy (SERS and TERS) offer high chemical sensitivity for catalysis research. Advanced techniques like shell-isolated nanoparticle-enhanced Raman spectroscopy overcome limitations in substrate stability and signal enhancement.

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Area of Science:

  • Chemical Spectroscopy
  • Surface Science
  • Catalysis

Background:

  • Surface- and tip-enhanced Raman spectroscopy (SERS and TERS) provide highly localized chemical sensitivity.
  • These techniques are valuable for studying chemical reactions and processes occurring at catalytic surfaces.
  • They enable observation of catalyst structures, adsorbates, and intermediates at low concentrations within electromagnetic field hotspots.

Purpose of the Study:

  • To highlight the potential of SERS and TERS in elucidating catalytic reaction mechanisms.
  • To address the limitations hindering the application of SERS and TERS in catalysis.
  • To present advanced techniques for overcoming these challenges.

Main Methods:

  • Utilizing sophisticated colloidal synthesis methods.
  • Employing advanced techniques such as shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS).
  • Optimizing measurement conditions for enhanced signal and substrate stability.

Main Results:

  • Demonstrated the ability of SERS and TERS to observe low-quantity species at catalytic surfaces.
  • Showcased the potential of these techniques to trigger chemical reactions under specific conditions.
  • Overcame challenges related to substrate instability and insufficient signal enhancement.

Conclusions:

  • SERS and TERS are powerful tools for in-situ catalysis research, offering detailed mechanistic insights.
  • Advanced methodologies, particularly SHINERS, significantly enhance the applicability of Raman spectroscopy in catalysis.
  • Future research can leverage these improved techniques for more complex catalytic studies.