On-Demand Webinar: Chemisorption Techniques for Industrial Catalyst Evaluation Using ChemiSorb Auto.

On-demand recording webinar

This streaming content is a recorded version of the webinar held in November. You can watch it as many times as you like during the streaming period. On-demand period: January 26, 2026 – February 28, 2026 Below is the content from the original live session. This webinar showcases the capabilities of the ChemiSorb Auto and highlights the importance of chemisorption techniques, which are widely used in catalyst characterization. First, the influence of experimental parameters on the temperature‑programmed reduction (TPR) profile was examined. For the Fe₃O₄ TPR profile, inappropriate parameter selection caused hydrogen depletion, resulting in distorted profiles. Three different flow rates (F) of 10, 25, and 50 standard cubic centimeters per minute (sccm) were tested, and a flow rate of 50 sccm provided a complete TPR profile. The pulse chemisorption technique was employed to quantify the fractional coverage of platinum on an alumina support using H₂ gas under atmospheric pressure conditions. Additionally, the effect of catalyst activation behavior on fractional coverage calculations was investigated. For Pt/Al₂O₃, activation at lower temperatures underestimated fractional coverage compared with activation at higher temperatures, though still below the calcination temperature. The desorption mechanism of zeolite CBV‑5524 was studied using the temperature‑programmed desorption (TPD) technique. The ZSM‑5 sample exhibited two distinct desorption mechanisms corresponding to weak and strong binding sites. Furthermore, activation energies were determined based on the peak temperatures.