Tuning Pt d-band states for highly performing propane dehydrogenation catalysts
收藏ESRF Portal2028-01-01 更新2026-04-23 收录
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https://doi.esrf.fr/10.15151/ESRF-ES-2013923939
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资源简介：
Direct propane dehydrogenation (PDH) has emerged as one of the most promising approaches to produce propylene. Pt is a commercially used metal for PDH and Sn is the most commonly used promoter for Pt catalysts. The PDH reaction requires the activation of the C-H bond, meaning its kinetics depend on the electronic structure of the Pt. However, the energy levels of the d-states in Pt and Pt-containing alloys, which play a crucial role in directing bond formation, have rarely been directly measured experimentally. We have developed PtSn loaded Al2O3 catalysts with various Pt:Sn ratio, which showed very different propylene formation rate and deactivation rate. Here we apply for the Pt L3 edge RIXS study to measure the d-band of Pt and Pt-C bond strength after H2 activation, propane dehydrogenation and regeneration. Compared with different Pt:Sn ratio will determine the optimal electronic structure of Pt, providing fundamental descriptor in C-H activation.
提供机构：
Utrecht University, Inorganic Chemistry and Catalysis Department, David de Wiedgebouw Debye Institute Universiteitweg 99, 3584 CG , Utrecht, NL; Utrecht University, Dept of Inorganic Chemistry & Catalysis, Debye Institute for Nanomaterials Science Universiteitsweg 99, 3584 CG, Utrecht, NL; University College London, Material and Catalysis Lab, LB18, Roberts building, Torrington place, WC1E7JE, London, GB; University College London, Chemical Engineering, Roberts Building, Torrington Place, Wc1e 7je London, United Kingdom
创建时间：
2028-01-01
