Haller, Steffen ; Gridin, Vladislav ; Hofmann, Kathrin ; Stark, Robert W. ; Albert, Barbara ; Kramm, Ulrike I. (2023)
Application of Non‐Precious Bifunctional Catalysts for Metal‐Air Batteries.
In: Energy Technology, 2021, 9 (7)
doi: 10.26083/tuprints-00020138
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Item Type: | Article |
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Type of entry: | Secondary publication |
Title: | Application of Non‐Precious Bifunctional Catalysts for Metal‐Air Batteries |
Language: | English |
Date: | 22 December 2023 |
Place of Publication: | Darmstadt |
Year of primary publication: | 2021 |
Place of primary publication: | Weinheim |
Publisher: | Wiley-VCH |
Journal or Publication Title: | Energy Technology |
Volume of the journal: | 9 |
Issue Number: | 7 |
Collation: | 9 Seiten |
DOI: | 10.26083/tuprints-00020138 |
Corresponding Links: | |
Origin: | Secondary publication DeepGreen |
Abstract: | Zinc‐air batteries have several advantages in comparison with the lithium‐ion technology as they enable the use of earth‐abundant elements, work at low cost, are lightweight, and are also much safer in application. In addition to the chemistry related to the zinc electrode, efficient and stable bifunctional catalysts are required for oxygen reduction reaction (ORR, for discharging) and oxygen evolution reaction (OER, for charging) on the air‐electrode side. Herein, a family of non‐precious metal catalysts is investigated as possible bifunctional composite: metal–nitrogen–carbon (MNC) catalysts for ORR, and metal oxyhydroxides as OER catalysts (Ox). The effect of transition metal and metal loading in these composite MNC + Ox catalysts on ORR and OER activities in half‐cell measurements is discussed. The catalysts were characterized using X‐ray diffraction and Raman spectroscopy to identify their phase composition. For the most active material, a potential gap of 0.79 V between OER and ORR was obtained, respectively. In a zinc‐air cell, this catalyst moreover showed a peak power density of 62 mW cm⁻² and a charge–discharge gap of 0.94 V after 26 h of charge–discharge cycling. |
Uncontrolled Keywords: | bifunctional catalysts, metal-air batteries, nonprecious metal catalysts, oxygen reduction reaction, polypyrrole |
Identification Number: | 2001106 |
Status: | Publisher's Version |
URN: | urn:nbn:de:tuda-tuprints-201384 |
Classification DDC: | 500 Science and mathematics > 530 Physics 500 Science and mathematics > 540 Chemistry |
Divisions: | 07 Department of Chemistry > Eduard Zintl-Institut > Fachgebiet Anorganische Chemie > Catalysts and Electrocatalysts 11 Department of Materials and Earth Sciences > Material Science > Physics of Surfaces |
Date Deposited: | 22 Dec 2023 13:30 |
Last Modified: | 07 Mar 2024 12:22 |
SWORD Depositor: | Deep Green |
URI: | https://tuprints.ulb.tu-darmstadt.de/id/eprint/20138 |
PPN: | 516053396 |
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