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Efficient Bifunctional Oxygen Electrocatalysts for Rechargeable Zinc–Air Battery: Fe 3 O 4 /N−C Nanoflowers Derived from Aromatic Polyamide
The development of low‐cost, high‐activity bifunctional oxygen electrocatalysts for rechargeable zinc–air batteries is highly desired. Herein, N‐doped carbon nanoflower embedded Fe 3 O 4 nanoparticles were prepared using a simple and scalable method. The obtained electrocatalyst exhibits excellent a...
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| Published in: | ChemCatChem 2022-02, Vol.14 (4) |
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| Main Authors: | , , , , , , |
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| Language: | English |
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| container_issue | 4 |
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| container_title | ChemCatChem |
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| creator | Liu, Yanping Qiao, Bin Jia, Nan Shi, Shufeng Chen, Xinbing An, Zhongwei Chen, Pei |
| description | The development of low‐cost, high‐activity bifunctional oxygen electrocatalysts for rechargeable zinc–air batteries is highly desired. Herein, N‐doped carbon nanoflower embedded Fe
3
O
4
nanoparticles were prepared using a simple and scalable method. The obtained electrocatalyst exhibits excellent activity and stability toward both oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), as well as a small potential gap of 0.72 V between the half‐wave potential of ORR and the onset potential of OER potential, which is superior to the most previously reported bifunctional ORR/OER catalysts. The corresponding zinc–air battery exhibits good charged/discharge cycle performance as well as excellent discharge property, with a power density of 136.8 mW cm
−2
at 200 mA cm
−2
outperforming commercial Pt/C (96.5mW cm
−2
). Experiment results and density functional theory demonstrate that the high catalysis activity is mainly caused by the surface oxygen vacancy of Fe
3
O
4
nanoparticles. This study sheds new light on the ORR/OER bifunctional electrocatalyst design. |
| doi_str_mv | 10.1002/cctc.202101523 |
| format | article |
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3
O
4
nanoparticles were prepared using a simple and scalable method. The obtained electrocatalyst exhibits excellent activity and stability toward both oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), as well as a small potential gap of 0.72 V between the half‐wave potential of ORR and the onset potential of OER potential, which is superior to the most previously reported bifunctional ORR/OER catalysts. The corresponding zinc–air battery exhibits good charged/discharge cycle performance as well as excellent discharge property, with a power density of 136.8 mW cm
−2
at 200 mA cm
−2
outperforming commercial Pt/C (96.5mW cm
−2
). Experiment results and density functional theory demonstrate that the high catalysis activity is mainly caused by the surface oxygen vacancy of Fe
3
O
4
nanoparticles. This study sheds new light on the ORR/OER bifunctional electrocatalyst design.</description><identifier>ISSN: 1867-3880</identifier><identifier>EISSN: 1867-3899</identifier><identifier>DOI: 10.1002/cctc.202101523</identifier><language>eng</language><ispartof>ChemCatChem, 2022-02, Vol.14 (4)</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c843-4e4d6ad268ead24b314cd9d8fca9ad035d672544ccac79b9f0c13c3af3e0be643</citedby><cites>FETCH-LOGICAL-c843-4e4d6ad268ead24b314cd9d8fca9ad035d672544ccac79b9f0c13c3af3e0be643</cites><orcidid>0000-0002-4317-3361</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Liu, Yanping</creatorcontrib><creatorcontrib>Qiao, Bin</creatorcontrib><creatorcontrib>Jia, Nan</creatorcontrib><creatorcontrib>Shi, Shufeng</creatorcontrib><creatorcontrib>Chen, Xinbing</creatorcontrib><creatorcontrib>An, Zhongwei</creatorcontrib><creatorcontrib>Chen, Pei</creatorcontrib><title>Efficient Bifunctional Oxygen Electrocatalysts for Rechargeable Zinc–Air Battery: Fe 3 O 4 /N−C Nanoflowers Derived from Aromatic Polyamide</title><title>ChemCatChem</title><description>The development of low‐cost, high‐activity bifunctional oxygen electrocatalysts for rechargeable zinc–air batteries is highly desired. Herein, N‐doped carbon nanoflower embedded Fe
3
O
4
nanoparticles were prepared using a simple and scalable method. The obtained electrocatalyst exhibits excellent activity and stability toward both oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), as well as a small potential gap of 0.72 V between the half‐wave potential of ORR and the onset potential of OER potential, which is superior to the most previously reported bifunctional ORR/OER catalysts. The corresponding zinc–air battery exhibits good charged/discharge cycle performance as well as excellent discharge property, with a power density of 136.8 mW cm
−2
at 200 mA cm
−2
outperforming commercial Pt/C (96.5mW cm
−2
). Experiment results and density functional theory demonstrate that the high catalysis activity is mainly caused by the surface oxygen vacancy of Fe
3
O
4
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3
O
4
nanoparticles were prepared using a simple and scalable method. The obtained electrocatalyst exhibits excellent activity and stability toward both oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), as well as a small potential gap of 0.72 V between the half‐wave potential of ORR and the onset potential of OER potential, which is superior to the most previously reported bifunctional ORR/OER catalysts. The corresponding zinc–air battery exhibits good charged/discharge cycle performance as well as excellent discharge property, with a power density of 136.8 mW cm
−2
at 200 mA cm
−2
outperforming commercial Pt/C (96.5mW cm
−2
). Experiment results and density functional theory demonstrate that the high catalysis activity is mainly caused by the surface oxygen vacancy of Fe
3
O
4
nanoparticles. This study sheds new light on the ORR/OER bifunctional electrocatalyst design.</abstract><doi>10.1002/cctc.202101523</doi><orcidid>https://orcid.org/0000-0002-4317-3361</orcidid></addata></record> |
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| language | eng |
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| source | Wiley-Blackwell Read & Publish Collection |
| title | Efficient Bifunctional Oxygen Electrocatalysts for Rechargeable Zinc–Air Battery: Fe 3 O 4 /N−C Nanoflowers Derived from Aromatic Polyamide |
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