Multifunctional Core-Shell Microgels as Pd-Nanoparticle Containing Nanoreactors With Enhanced Catalytic Turnover

Sabadasch V, Dirksen M, Fandrich P, Hellweg T (2022)
Frontiers in chemistry 10: 889521.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
In this work, we present core-shell microgels with tailor-made architecture and properties for the incorporation of palladium nanoparticles. The microgel core consists of poly-N-isopropylacrylamide (PNIPAM) copolymerized with methacrylic acid (MAc) as anchor point for the incorporation of palladium nanoparticles. The microgel shell is prepared by copolymerization of NIPAM and the UV-sensitive comonomer 2-hydroxy-4-(methacryloyloxy)-benzophenone (HMABP). The obtained core-shell architecture was analyzed by means of photon correlation spectroscopy, while the incorporated amount of HMABP was further confirmed via Fourier transform infrared spectroscopy. Subsequently, the microgel system was used for loading with palladium nanoparticles and their size and localization were investigated by transmission electron microscopy. The catalytic activity of the monodisperse palladium nanoparticles was tested by reduction of 4-nitrophenol to 4-aminophenol. The obtained reaction rate constants for the core-shell system showed enhanced activity compared to the Pd-loaded bare core system. Furthermore, it was possible to recycle the catalyst several times. Analysis via transmission electron microscopy revealed, that the incorporated palladium nanoparticles emerged undamaged after the reaction and subsequent purification process since no aggregation or loss in size was observed. Copyright © 2022 Sabadasch, Dirksen, Fandrich and Hellweg.
Erscheinungsjahr
2022
Zeitschriftentitel
Frontiers in chemistry
Band
10
Art.-Nr.
889521
eISSN
2296-2646
Page URI
https://pub.uni-bielefeld.de/record/2963947

Zitieren

Sabadasch V, Dirksen M, Fandrich P, Hellweg T. Multifunctional Core-Shell Microgels as Pd-Nanoparticle Containing Nanoreactors With Enhanced Catalytic Turnover. Frontiers in chemistry. 2022;10: 889521.
Sabadasch, V., Dirksen, M., Fandrich, P., & Hellweg, T. (2022). Multifunctional Core-Shell Microgels as Pd-Nanoparticle Containing Nanoreactors With Enhanced Catalytic Turnover. Frontiers in chemistry, 10, 889521. https://doi.org/10.3389/fchem.2022.889521
Sabadasch, V., Dirksen, M., Fandrich, P., and Hellweg, T. (2022). Multifunctional Core-Shell Microgels as Pd-Nanoparticle Containing Nanoreactors With Enhanced Catalytic Turnover. Frontiers in chemistry 10:889521.
Sabadasch, V., et al., 2022. Multifunctional Core-Shell Microgels as Pd-Nanoparticle Containing Nanoreactors With Enhanced Catalytic Turnover. Frontiers in chemistry, 10: 889521.
V. Sabadasch, et al., “Multifunctional Core-Shell Microgels as Pd-Nanoparticle Containing Nanoreactors With Enhanced Catalytic Turnover”, Frontiers in chemistry, vol. 10, 2022, : 889521.
Sabadasch, V., Dirksen, M., Fandrich, P., Hellweg, T.: Multifunctional Core-Shell Microgels as Pd-Nanoparticle Containing Nanoreactors With Enhanced Catalytic Turnover. Frontiers in chemistry. 10, : 889521 (2022).
Sabadasch, Viktor, Dirksen, Maxim, Fandrich, Pascal, and Hellweg, Thomas. “Multifunctional Core-Shell Microgels as Pd-Nanoparticle Containing Nanoreactors With Enhanced Catalytic Turnover”. Frontiers in chemistry 10 (2022): 889521.
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2022-07-05T14:50:23Z
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