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Duan, Gaigai ; Koehn-Serrano, Melissa ; Greiner, Andreas:
Highly Efficient Reusable Sponge‐Type Catalyst Carriers Based on Short Electrospun Fibers.
In: Macromolecular Rapid Communications.
Bd. 38
(2017)
Heft 3
.
- 1600511.
ISSN 1521-3927
DOI: https://doi.org/10.1002/marc.201600511
Abstract
This study reports on gold nanoparticles (AuNPs) immobilized in a sponge made of short electrospun fibers (Au‐sponge), which show surprisingly high reaction rates at extremely low gold amount. Au‐sponges are made by freeze‐drying of dispersions of short electrospun fibers with preimmobilization of AuNPs. The resulting Au‐sponges show very low densities around 7 mg cm⁻³ corresponding to a pore volume of about 150 mL g⁻¹, but low surface area and very low amount of AuNPs in the range of 0.29–3.56 wt%. In general, catalysts with immobilized AuNPs show much low reaction rates compared to systems with dispersed AuNPs. By contrast, the Au‐sponge catalyst with immobilized AuNPs is discerned here as an extremely efficient catalyst even superior to other systems with dispersed AuNPs. The fidelity of the Au‐sponges after reactions is good enough for manifold use and thereby provides a sustainable catalyst design as well.
Weitere Angaben
| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Institutionen der Universität: | Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie > Lehrstuhl Makromolekulare Chemie II Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie > Lehrstuhl Makromolekulare Chemie II > Lehrstuhl Makromolekulare Chemie II - Univ.-Prof. Dr. Andreas Greiner Fakultäten |
| Titel an der UBT entstanden: | Ja |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik > 540 Chemie |
| Eingestellt am: | 15 Aug 2018 07:19 |
| Letzte Änderung: | 21 Dec 2023 11:23 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/45473 |