Abstract: Preparation of catalysts with predesigned composition, structure and distribution of active species is an important challenge as such characteristics determine the catalytic performance. This work introduces a strategy to rationally design effective catalysts for the selective HMF oxidation to FDCA under mild conditions. We show the effect of the preparation technique (impregnation, deposition–precipitation, impregnation–reduction) on the active species formation in ZrO2-supported Au, Pd, and AuPd catalysts, discuss the effects of the metal dispersion and state on the catalyst performance and provide insight into reaction pathways of aerobic HMF oxidation over bimetallic AuPd/ZrO2 catalysts. The impregnation–reduction allows preparing the active mono- and bimetallic catalysts in contrast to other techniques used, with the bimetallic formulations featuring the enhanced catalyst performance caused by the synergistic effect. The alloyed Au0.56Pd0.44/ZrO2 catalyst shows a per-site TOF of 0.25 s−1 that is ∼4 times higher than the one for the Au/ZrO2 catalysts.

Cite: Kharlamova T.S. , Timofeev K.L. , Morilov D.P. , Salaev M.A. , Stadnichenko A.I. , Stonkus O.A. , Vodyankina O.V.
Design Strategy for Effective Supported Au-Pd Catalysts for Selective Oxidation of 5-Hydroxymethylfurfural under Mild Conditions
Reaction Chemistry & Engineering. 2024. V.9. N10. P.2691-2709. DOI: 10.1039/d4re00355a WOS Scopus OpenAlex

Dates:

Submitted:	Jul 19, 2024
Accepted:	Jul 26, 2024
Published online:	Jul 29, 2024
Published print:	Oct 24, 2024

Identifiers:

Web of science:	WOS:001283925700001
Scopus:	2-s2.0-85200885273
OpenAlex:	W4401094203

Citing: Пока нет цитирований

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