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Bimetallic AgPd/UiO-66 Hybrid Catalysts for Propylene Glycol Oxidation into Lactic Acid Full article

Journal Materials
ISSN: 1996-1944
Output data Year: 2020, Volume: 13, Number: 23, Article number : 5471, Pages count : 18 DOI: 10.3390/ma13235471
Tags Bimetallic nanoparticles; Cascade propylene glycol oxidation; Lactic acid; Metal-organic framework; Palladium; Silver
Authors Ten Sergey 1 , Torbina Viktoriia V. 1 , Zaikovskii Vladimir I. 2 , Kulinich Sergei A. 3,4 , Vodyankina Olga 1
Affiliations
1 Laboratory of Catalytic Research, Tomsk State University, 36 Lenin Ave., 634050 Tomsk, Russia
2 Boreskov Institute of Catalysis, 5, Lavrentiev Ave., 630090 Novosibirsk, Russia
3 Research Institute of Science & Technology, Tokai University, Kanagawa 259-1292, Japan
4 School of Natural Sciences, Far Eastern Federal University, 690091 Vladivostok, Russia

Funding (1)

1 Russian Science Foundation 19-73-30026 (АААА-А19-119052990037-6)

Abstract: Different methods (the wetness impregnation of Ag and Pd precursors dissolved in water or acetonitrile solution, and the double solvent impregnation technique) were employed to immobilize Ag–Pd nanoparticles (NPs) into the pores of the microporous zirconium-based metal-organic framework known as UiO-66. The obtained materials were characterized by using nitrogen adsorption-desorption at −196 °C, powder X-ray diffraction, UV-Vis diffusion reflectance spectroscopy, and transition electron microscopy measurements. Special attention was paid to the acid and redox properties of the obtained materials, which were studied by using temperature-programmed desorption of ammonia (TPD-NH3) and temperature-programmed reduction (TPR-H2) methods. The use of a drying procedure prior to reduction was found to result in metallic NPs which, most likely, formed on the external surface and were larger than corresponding voids of the metal-organic framework. The formation of Ag–Pd alloy or monometallic Ag and Pd depended on the nature of both metal precursors and the impregnation solvent used. Catalytic activity of the AgPd/UiO-66 materials in propylene glycol oxidation was found to be a result of synergistic interaction between the components in AgPd alloyed NPs immobilized in the pore space and on the external surface of UiO-66. The key factor for consistent transformation of propylene glycol into lactic acid was the proximity between redox and acid-base species.
Cite: Ten S. , Torbina V.V. , Zaikovskii V.I. , Kulinich S.A. , Vodyankina O.
Bimetallic AgPd/UiO-66 Hybrid Catalysts for Propylene Glycol Oxidation into Lactic Acid
Materials. 2020. V.13. N23. 5471 :1-18. DOI: 10.3390/ma13235471 WOS Scopus РИНЦ AN PMID OpenAlex
Files: Full text from publisher
Dates:
Submitted: Nov 12, 2020
Accepted: Nov 28, 2020
Published online: Nov 30, 2020
Published print: Dec 1, 2020
Identifiers:
Web of science: WOS:000597492700001
Scopus: 2-s2.0-85097007769
Elibrary: 45108377
Chemical Abstracts: 2020:2661828
PMID: 33266341
OpenAlex: W3109920093
Citing:
DB Citing
Scopus 11
Web of science 11
Elibrary 12
OpenAlex 12
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