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Incorporation of Cu/Ni in Ordered Mesoporous Co‐Based Spinels to Facilitate Oxygen Evolution and Reduction Reactions in Alkaline Media and Aprotic Li−O(2) Batteries
Ordered mesoporous CuNiCo oxides were prepared via nanocasting with varied Cu/Ni ratio to establish its impact on the electrochemical performance of the catalysts. Physicochemical properties were determined along with the electrocatalytic activities toward oxygen evolution/reduction reactions (OER/O...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9303656/ https://www.ncbi.nlm.nih.gov/pubmed/34905292 http://dx.doi.org/10.1002/cssc.202102404 |
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author | Priamushko, Tatiana Budiyanto, Eko Eshraghi, Nicolas Weidenthaler, Claudia Kahr, Jürgen Jahn, Marcus Tüysüz, Harun Kleitz, Freddy |
author_facet | Priamushko, Tatiana Budiyanto, Eko Eshraghi, Nicolas Weidenthaler, Claudia Kahr, Jürgen Jahn, Marcus Tüysüz, Harun Kleitz, Freddy |
author_sort | Priamushko, Tatiana |
collection | PubMed |
description | Ordered mesoporous CuNiCo oxides were prepared via nanocasting with varied Cu/Ni ratio to establish its impact on the electrochemical performance of the catalysts. Physicochemical properties were determined along with the electrocatalytic activities toward oxygen evolution/reduction reactions (OER/ORR). Combining Cu, Ni, and Co allowed creating active and stable bifunctional electrocatalysts. CuNiCo oxide (Cu/Ni≈1 : 4) exhibited the highest current density of 411 mA cm(−2) at 1.7 V vs. reversible hydrogen electrode (RHE) and required the lowest overpotential of 312 mV to reach 10 mA cm(−2) in 1 m KOH after 200 cyclic voltammograms. OER measurements were also conducted in the purified 1 m KOH, where CuNiCo oxide (Cu/Ni≈1 : 4) also outperformed NiCo oxide and showed excellent chemical and catalytic stability. For ORR, Cu/Ni incorporation provided higher current density, better kinetics, and facilitated the 4e(−) pathway of the oxygen reduction reaction. The tests in Li−O(2) cells highlighted that CuNiCo oxide can effectively promote ORR and OER at a lower overpotential. |
format | Online Article Text |
id | pubmed-9303656 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-93036562022-07-28 Incorporation of Cu/Ni in Ordered Mesoporous Co‐Based Spinels to Facilitate Oxygen Evolution and Reduction Reactions in Alkaline Media and Aprotic Li−O(2) Batteries Priamushko, Tatiana Budiyanto, Eko Eshraghi, Nicolas Weidenthaler, Claudia Kahr, Jürgen Jahn, Marcus Tüysüz, Harun Kleitz, Freddy ChemSusChem Research Articles Ordered mesoporous CuNiCo oxides were prepared via nanocasting with varied Cu/Ni ratio to establish its impact on the electrochemical performance of the catalysts. Physicochemical properties were determined along with the electrocatalytic activities toward oxygen evolution/reduction reactions (OER/ORR). Combining Cu, Ni, and Co allowed creating active and stable bifunctional electrocatalysts. CuNiCo oxide (Cu/Ni≈1 : 4) exhibited the highest current density of 411 mA cm(−2) at 1.7 V vs. reversible hydrogen electrode (RHE) and required the lowest overpotential of 312 mV to reach 10 mA cm(−2) in 1 m KOH after 200 cyclic voltammograms. OER measurements were also conducted in the purified 1 m KOH, where CuNiCo oxide (Cu/Ni≈1 : 4) also outperformed NiCo oxide and showed excellent chemical and catalytic stability. For ORR, Cu/Ni incorporation provided higher current density, better kinetics, and facilitated the 4e(−) pathway of the oxygen reduction reaction. The tests in Li−O(2) cells highlighted that CuNiCo oxide can effectively promote ORR and OER at a lower overpotential. John Wiley and Sons Inc. 2022-01-20 2022-03-08 /pmc/articles/PMC9303656/ /pubmed/34905292 http://dx.doi.org/10.1002/cssc.202102404 Text en © 2021 The Authors. ChemSusChem published by Wiley-VCH GmbH https://creativecommons.org/licenses/by-nc/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ (https://creativecommons.org/licenses/by-nc/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes. |
spellingShingle | Research Articles Priamushko, Tatiana Budiyanto, Eko Eshraghi, Nicolas Weidenthaler, Claudia Kahr, Jürgen Jahn, Marcus Tüysüz, Harun Kleitz, Freddy Incorporation of Cu/Ni in Ordered Mesoporous Co‐Based Spinels to Facilitate Oxygen Evolution and Reduction Reactions in Alkaline Media and Aprotic Li−O(2) Batteries |
title | Incorporation of Cu/Ni in Ordered Mesoporous Co‐Based Spinels to Facilitate Oxygen Evolution and Reduction Reactions in Alkaline Media and Aprotic Li−O(2) Batteries |
title_full | Incorporation of Cu/Ni in Ordered Mesoporous Co‐Based Spinels to Facilitate Oxygen Evolution and Reduction Reactions in Alkaline Media and Aprotic Li−O(2) Batteries |
title_fullStr | Incorporation of Cu/Ni in Ordered Mesoporous Co‐Based Spinels to Facilitate Oxygen Evolution and Reduction Reactions in Alkaline Media and Aprotic Li−O(2) Batteries |
title_full_unstemmed | Incorporation of Cu/Ni in Ordered Mesoporous Co‐Based Spinels to Facilitate Oxygen Evolution and Reduction Reactions in Alkaline Media and Aprotic Li−O(2) Batteries |
title_short | Incorporation of Cu/Ni in Ordered Mesoporous Co‐Based Spinels to Facilitate Oxygen Evolution and Reduction Reactions in Alkaline Media and Aprotic Li−O(2) Batteries |
title_sort | incorporation of cu/ni in ordered mesoporous co‐based spinels to facilitate oxygen evolution and reduction reactions in alkaline media and aprotic li−o(2) batteries |
topic | Research Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9303656/ https://www.ncbi.nlm.nih.gov/pubmed/34905292 http://dx.doi.org/10.1002/cssc.202102404 |
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