What question did this study set out to answer?

This research investigates how elemental phosphorus affects the properties of palladium catalysts during the hydrogenation of 2-ethyl-9,10-anthraquinone.

May 28, 2026

Reasons for the Modifying Effect of Elemental Phosphorus on the Properties of Palladium Catalysts in the Hydrogenation of 2-Ethyl-9,10-anthraquinone

Key Points

This research investigates how elemental phosphorus affects the properties of palladium catalysts during the hydrogenation of 2-ethyl-9,10-anthraquinone.
Conducted a formal kinetic study of 2-ethyl-9,10-anthraquinone hydrogenation over 3% Pd/NZSM-5 and 3% Pd–1.0P/NZSM-5 catalysts.
Determined the qualitative and quantitative composition of the catalysts using X-ray photoelectron spectroscopy.
Analyzed metal dispersion and specific activity to elucidate phosphorus's modifying effects.
Identified the qualitative and quantitative surface composition of the Pd–P catalysts.
Evaluated the metal dispersion and specific activity, finding significant differences compared to the Pd/NZSM-5 catalysts.
Elucidated the primary reasons for phosphorus's modifying effect on palladium properties.

Abstract

A formal kinetic study of 2-ethyl-9,10-anthraquinone hydrogenation was carried out over 3% Pd/НZSM-5 and 3% Pd–1.0Р/НZSM-5 catalysts. The qualitative and quantitative composition of the surface layer of the 3% Pd–1.0Р/НZSM-5 sample was determined by X-ray photoelectron spectroscopy. Based on the analysis of metal dispersion, specific activity in 2-ethyl-9,10-anthraquinone hydrogenation, and the concentration of surface Pd(0) atoms in the Pd–P catalysts, the main reasons for the modifying effect of phosphorus were elucidated.

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