Constructing FeS and ZnS Heterojunction on N,S-Codoped Carbon as Robust Electrocatalyst toward Oxygen Reduction Reaction
Highly active and cost-efficient electrocatalysts for oxygen reduction reaction (ORR) are significant for developing renewable energy conversion devices. Herein, a nanocomposite Fe/ZnS-SNC electrocatalyst with an FeS and ZnS heterojunction on N,S-codoped carbon has been fabricated via a facile one-step sulfonating of the pre-designed Zn- and Fe-organic frameworks. Benefitting from the electron transfer from FeS to adjacent ZnS at the heterointerfaces, the optimized Fe/ZnS-SNC900 catalyst exhibits excellent ORR performances, featuring the half-wave potentials of 0.94 V and 0.81 V in alkaline and acidic media, respectively, which is competitive with the commercial 20 wt.% Pt/C (0.87 and 0.76 V). The flexible Zn-air battery equipping Fe/ZnS-SNC900 affords a higher open-circuit voltage (1.45 V) and power density of 30.2 mW cm-2. Fuel cells assembled with Fe/ZnS-SNC900 as cathodic catalysts deliver a higher power output of 388.3 and 242.8 mW cm-2 in H2-O2 and -air conditions. This work proposes advanced heterostructured ORR electrocatalysts that effectively promote renewable energy conversions.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:13 |
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| Enthalten in: |
Nanomaterials (Basel, Switzerland) - 13(2023), 19 vom: 30. Sept. |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Pei, Fenglai [VerfasserIn] |
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| Links: |
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| Themen: |
Electron transfer |
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| Anmerkungen: |
Date Revised 20.10.2023 published: Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.3390/nano13192682 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM363292845 |
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| 245 | 1 | 0 | |a Constructing FeS and ZnS Heterojunction on N,S-Codoped Carbon as Robust Electrocatalyst toward Oxygen Reduction Reaction |
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| 500 | |a Date Revised 20.10.2023 | ||
| 500 | |a published: Electronic | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a Highly active and cost-efficient electrocatalysts for oxygen reduction reaction (ORR) are significant for developing renewable energy conversion devices. Herein, a nanocomposite Fe/ZnS-SNC electrocatalyst with an FeS and ZnS heterojunction on N,S-codoped carbon has been fabricated via a facile one-step sulfonating of the pre-designed Zn- and Fe-organic frameworks. Benefitting from the electron transfer from FeS to adjacent ZnS at the heterointerfaces, the optimized Fe/ZnS-SNC900 catalyst exhibits excellent ORR performances, featuring the half-wave potentials of 0.94 V and 0.81 V in alkaline and acidic media, respectively, which is competitive with the commercial 20 wt.% Pt/C (0.87 and 0.76 V). The flexible Zn-air battery equipping Fe/ZnS-SNC900 affords a higher open-circuit voltage (1.45 V) and power density of 30.2 mW cm-2. Fuel cells assembled with Fe/ZnS-SNC900 as cathodic catalysts deliver a higher power output of 388.3 and 242.8 mW cm-2 in H2-O2 and -air conditions. This work proposes advanced heterostructured ORR electrocatalysts that effectively promote renewable energy conversions | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a N,S codoped | |
| 650 | 4 | |a ZnS/FeS | |
| 650 | 4 | |a electron transfer | |
| 650 | 4 | |a heterostructure | |
| 650 | 4 | |a oxygen reduction reaction | |
| 700 | 1 | |a Li, Min |e verfasserin |4 aut | |
| 700 | 1 | |a Huang, Yifan |e verfasserin |4 aut | |
| 700 | 1 | |a Guo, Qiuyun |e verfasserin |4 aut | |
| 700 | 1 | |a Song, Kunming |e verfasserin |4 aut | |
| 700 | 1 | |a Kong, Fantao |e verfasserin |4 aut | |
| 700 | 1 | |a Cui, Xiangzhi |e verfasserin |4 aut | |
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