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Highly Efficient Reusable Sponge‐Type Catalyst Carriers Based on Short Electrospun Fibers

Title data

Duan, Gaigai ; Koehn-Serrano, Melissa ; Greiner, Andreas:
Highly Efficient Reusable Sponge‐Type Catalyst Carriers Based on Short Electrospun Fibers.
In: Macromolecular Rapid Communications. Vol. 38 (February 2017) Issue 3 .
ISSN 1521-3927
DOI: https://doi.org/10.1002/marc.201600511

Abstract in another language

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.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II > Chair Macromolecular Chemistry II - Univ.-Prof. Dr. Andreas Greiner
Faculties
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 15 Aug 2018 07:19
Last Modified: 15 Aug 2018 07:19
URI: https://eref.uni-bayreuth.de/id/eprint/45473