Discussion on standard measurement conditions for H2 pulse measurement! Recommended pretreatment conditions for H2 pulse measurement are also included.
The evaluation of the dispersion of metal-supported catalysts is generally conducted through CO or H2 pulse adsorption measurements. H2 has a weaker adsorption strength to precious metals compared to CO, and depending on the support, it may cause spillover phenomena, which is why it is not often chosen. However, due to its low toxicity and constant stoichiometric ratio, there are cases where H2 is used for pulse adsorption measurements. When H2 pulse measurements are conducted under the same conditions as CO pulse measurements, significantly lower dispersion may be obtained compared to CO pulse measurements. This document examines the causes of this phenomenon and its countermeasures, and reports on the standard measurement conditions for H2 pulse measurements. [Contents] ■ Overview ■ Experiment ■ Results and Discussion *For more details, please refer to the PDF document or feel free to contact us.
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