Journal Article PUBDB-2025-01675

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Molecularly modified aluminum phosphates as support materials for Ru nanoparticles in selective hydrogenation

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2025
Elsevier Amsterdam [u.a.]

Journal of catalysis 442, 115911 () [10.1016/j.jcat.2024.115911]
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Abstract: Modified aluminum phosphate (APO-5) proved suitable as zeotype support for the preparation of imidazolium-based supported ionic liquid phase material, i.e. SILP(APO-5). The successful chemisorption of ionic liquid-like modifiers at the APO-5 surface was demonstrated by solid- state $^{31}$P and $^{13}$C nuclear magnetic resonance (NMR) spectroscopy. The immobilization of Ru nanoparticles (NPs) on SILP(APO-5) was achieved following an organometallic approach, producing well-dispersed Ru NPs with a mean average size of 1.4 nm on the support. The resulting Ru@SILP(APO-5) material was thoroughly characterized using multiple techniques, e.g., solid-state NMR, transmission electron microscopy (TEM), infrared (IR) spectroscopy, X-ray absorption spectroscopy (XAS), and applied as a catalyst for the hydrogenation of biomass-derived furfural acetone with molecular hydrogen. The ionic liquid-like layer was found beneficial for the stabilization of the Ru NPs as well as of the APO-5 material. A temperature-controlled selectivity switch between olefinic, carbonyl or furan ring hydrogenation could be achieved with this new material with the APO-5 facilitating activation of the olefinic bond, while the carbonyl bond was remarkably deactivated. The demonstrated suitability of aluminum phosphate materials to produce molecularly modified surfaces offers a new control parameter for the systematic design and optimization of zeotype-based catalysts.

Classification:

Contributing Institute(s):
  1. FS DOOR-User (FS DOOR-User)
Research Program(s):
  1. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
  2. DFG project G:(GEPRIS)390919832 - EXC 2186: Das Fuel Science Center – Adaptive Umwandlungssysteme für erneuerbare Energie- und Kohlenstoffquellen (390919832) (390919832)
Experiment(s):
  1. PETRA Beamline P65 (PETRA III)

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 Record created 2025-05-15, last modified 2025-07-23


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