ResourceSpectroscopy

Pulse chemisorption using a low-volume DRIFTS reactor

28 Sept 2026

Transient spectroscopy requires rapid, controlled changes to the gas environment around a catalyst. Excess dead volume can slow gas exchange and limit the study of fast surface processes.

Explore a practical approach to transient catalyst characterization using DRIFTS in this application note from Specac. It demonstrates pulse chemisorption using a low-volume, high-temperature reaction chamber. Discover how sequential CO pulses over a Pt/SiO₂ catalyst enable measurement of surface-site density and visualization of different adsorption sites.

Resource details

  • Resource type: Application note
  • Page count: 2 pages
  • Read time: 5 mins

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