Interface-Engineered NiFe/Ni-S Nanoparticles for Reliable Alkaline Oxygen Production at Industrial Current : A Sulfur Source Confinement Strategy
© 2024 Wiley-VCH GmbH..
Using powder-based ink appears to be the most suitable candidate for commercializing the membrane electrode assembly (MEA), while research on the powder-based NPM catalyst for anion exchange membrane water electrolyzer (AEMWE) is currently insufficient, especially at high current density. Herein, a sulfur source (NiFe Layered double hydroxide adsorbed SO 4 2 - ${\mathrm{SO}}_4^{2 - }$ ) confinement strategy is developed to integrate Ni3 S2 onto the surface of amorphous/crystalline NiFe alloy nanoparticles (denoted NiFe/Ni-S), achieving advanced control over the sulfidation process for the formation of metal sulfides. The constructed interface under the sulfur source confinement strategy generates abundant active sites that increase electron transport at the electrode-electrolyte interface and improve ability over an extended period at a high current density. Consequently, the constructed NiFe/Ni-S delivers an ultra-low overpotential of 239 mV at 10 mA cm-2 and 0.66 mA cm ECSA - 2 ${\mathrm{cm}}_{{\mathrm{ECSA}}}^{ - 2}$ under an overpotential of 300 mV. The AEMWE with NiFe/Ni-S anode exhibits a cell voltage of 1.664 V 0.5 A cm-2 and a 400 h stability at 1.0 A cm-2.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - year:2024 |
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| Enthalten in: |
Small (Weinheim an der Bergstrasse, Germany) - (2024) vom: 23. Feb., Seite e2310737 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Chen, Bin [VerfasserIn] |
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| Links: |
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| Themen: |
Anion exchange membrane water electrolyzer |
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| Anmerkungen: |
Date Revised 24.02.2024 published: Print-Electronic Citation Status Publisher |
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| doi: |
10.1002/smll.202310737 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM368863522 |
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| 245 | 1 | 0 | |a Interface-Engineered NiFe/Ni-S Nanoparticles for Reliable Alkaline Oxygen Production at Industrial Current |b A Sulfur Source Confinement Strategy |
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| 500 | |a Date Revised 24.02.2024 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status Publisher | ||
| 520 | |a © 2024 Wiley-VCH GmbH. | ||
| 520 | |a Using powder-based ink appears to be the most suitable candidate for commercializing the membrane electrode assembly (MEA), while research on the powder-based NPM catalyst for anion exchange membrane water electrolyzer (AEMWE) is currently insufficient, especially at high current density. Herein, a sulfur source (NiFe Layered double hydroxide adsorbed SO 4 2 - ${\mathrm{SO}}_4^{2 - }$ ) confinement strategy is developed to integrate Ni3 S2 onto the surface of amorphous/crystalline NiFe alloy nanoparticles (denoted NiFe/Ni-S), achieving advanced control over the sulfidation process for the formation of metal sulfides. The constructed interface under the sulfur source confinement strategy generates abundant active sites that increase electron transport at the electrode-electrolyte interface and improve ability over an extended period at a high current density. Consequently, the constructed NiFe/Ni-S delivers an ultra-low overpotential of 239 mV at 10 mA cm-2 and 0.66 mA cm ECSA - 2 ${\mathrm{cm}}_{{\mathrm{ECSA}}}^{ - 2}$ under an overpotential of 300 mV. The AEMWE with NiFe/Ni-S anode exhibits a cell voltage of 1.664 V 0.5 A cm-2 and a 400 h stability at 1.0 A cm-2 | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a anion exchange membrane water electrolyzer | |
| 650 | 4 | |a confinement strategy | |
| 650 | 4 | |a nanoparticle | |
| 650 | 4 | |a oxygen evolution reaction | |
| 700 | 1 | |a Liu, Tao |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Junfeng |e verfasserin |4 aut | |
| 700 | 1 | |a Zhao, Shuo |e verfasserin |4 aut | |
| 700 | 1 | |a Yue, Runfei |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Sipu |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Lianqin |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Zhihao |e verfasserin |4 aut | |
| 700 | 1 | |a Feng, Yingjie |e verfasserin |4 aut | |
| 700 | 1 | |a Huang, Jun |e verfasserin |4 aut | |
| 700 | 1 | |a Yin, Yan |e verfasserin |4 aut | |
| 700 | 1 | |a Guiver, Michael D |e verfasserin |4 aut | |
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| 856 | 4 | 0 | |u http://dx.doi.org/10.1002/smll.202310737 |3 Volltext |
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