Evolution of surface and bulk structure of supported palladium nanoparticles by in situ X-ray absorption and infrared spectroscopies: Effect of temperature, CO and CH4 gas

Oleg A. Usoltsev,Alina A. Skorynina,Bogdan O. Protsenko,Vlad Martin-Diaconescu,Riccardo Pellegrini,Alexander V. Soldatov,Jeroen van Bokhoven,Aram L. Bugaev

Applied Surface Science（2023）

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摘要

•Contraction of Pd-Pd distances occurs in Pd nanoparticles upon heating.•Disproportionation of CO on palladium leads to the formation of surface carbon deposits below 250 °C.•Bulk palladium carbide is formed in CO at 250 °C.•Bulk palladium carbide is formed in CH4 at 350 °C.

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关键词

Palladium nanoparticles,Palladium carbides,CO,XANES,DRIFTS

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