Simsek, Marcel and Hoecherl, Kilian and Schlosser, Marc and Baeumner, Antje J. and Wongkaew, Nongnoot (2020) Printable 3D Carbon Nanofiber Networks with Embedded Metal Nanocatalysts. ACS APPLIED MATERIALS & INTERFACES, 12 (35). pp. 39533-39540. ISSN 1944-8244, 1944-8252
Full text not available from this repository. (Request a copy)Abstract
Carbon nanofiber (CNF) nanocatalyst hybrids hold great promise in fields such as energy storage, synthetic chemistry, and sensors. Current strategies to generate such hybrids are laborious and utterly incompatible with miniaturization and large-scale production. Instead, this work demonstrates that Ni nanoparticles embedded in three-dimensional (3D) CNFs of any shape and design can be easily prepared using electrospinning, followed by laser carbonization under ambient conditions. Specifically, a solution of nickel acetylacetonate /polyimide is electrospun and subsequently a design is printed via CO2 laser (Ni-laser-induced carbon nanofiber (LCNFs)). This creates uniformly distributed small Ni nanoparticles (similar to 8 nm) very tightly adhered to the CNF network. Morphological and performance characteristics can be directly influenced by metal content and lasing power and hence adapted for the desired application. Here, Ni-LCNFs are optimized for nonenzymatic electrochemical sensing of glucose with great sensitivity of 2092 mu A mM(-1) cm(-2) and a detection limit down to 0.3 mu M. Its selectivity for glucose vs interfering species (ascorbic and uric acid) is essentially governed by the Ni content. Most importantly, this strategy can be adapted to a whole range of metal precursors and hence provide opportunities for such 3D CNF-nanocatalyst hybrids in point-of-care applications where high-performance but also sustainable and low-cost fabrications are of utmost importance.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ALLOY NANOPARTICLES; HYDROGEN-PEROXIDE; NICKEL-HYDROXIDE; NI NANOPARTICLES; GLUCOSE; ELECTRODE; EFFICIENT; FABRICATION; COMPOSITES; carbon nanofibers; electrochemical sensors; electrospinning; laser-induced carbonization; nanocatalysts |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Analytische Chemie, Chemo- und Biosensorik Chemistry and Pharmacy > Institut für Analytische Chemie, Chemo- und Biosensorik > Chemo- und Biosensorik (Prof. Antje J. Bäumner, formerly Prof. Wolfbeis) Chemistry and Pharmacy > Institut für Anorganische Chemie Chemistry and Pharmacy > Institut für Anorganische Chemie > Chair Prof. Dr. Arno Pfitzner |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 12 Mar 2021 08:04 |
| Last Modified: | 12 Mar 2021 08:04 |
| URI: | https://pred.uni-regensburg.de/id/eprint/43860 |
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