Bimetallic phosphides-oxides heterostructures coupled heteroatom-doped carbon as bifunctional electrocatalysts for Zn-air batteries
Designing efficient bifunctional catalysts with multi-component composites is essential for the application of zinc-air batteries (ZABs). Herein, a bimetallic phosphides-oxides heterostructures coupled heteroatom-doped carbon (FeCoP-FeCo2O4@PNPC) was designed by in-situ growth of phosphor-oxide hete...
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Tsinghua University Press
2025-06-01
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| Series: | Nano Research Energy |
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| Online Access: | https://www.sciopen.com/article/10.26599/NRE.2024.9120151 |
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| author | Ruiyu Qi Yiliang Shi Wenhao Tang Tianli Liu Li Gao Kewei Teng Ruiping Liu |
| author_facet | Ruiyu Qi Yiliang Shi Wenhao Tang Tianli Liu Li Gao Kewei Teng Ruiping Liu |
| author_sort | Ruiyu Qi |
| collection | DOAJ |
| description | Designing efficient bifunctional catalysts with multi-component composites is essential for the application of zinc-air batteries (ZABs). Herein, a bimetallic phosphides-oxides heterostructures coupled heteroatom-doped carbon (FeCoP-FeCo2O4@PNPC) was designed by in-situ growth of phosphor-oxide heterostructures on heteroatom-doped carbon materials and employed as bifunctional electrocatalyst for ZABs. The heteroatom-doped carbon substrate with ORR active sites can effectively improve the conductivity and the double transition metal atoms can enhance the catalytic activity. The heterostructure adjusts the d-band center, making the material gain and loss of electrons are at a medium level, which is conducive to the material’s capture of raw materials and the release of products. is beneficial to electron transfer. The dense FeCo2O4 nanorods act as a protection layer to improve stability, and the oxide-phosphide heterostructure and synergistic coupling with the heteroatom-doped carbon substrate also contribute to the catalytic activity. The small ΔE of 0.765 V for catalyzing both OER and ORR, high power density of 121.6 mW·cm–2 and the extraordinary long-term stability of more than 240 h for liquid state rechargeable ZAB can be realized. The flexible solid-state rechargeable ZAB with FeCoP-FeCo2O4@PNPC also exhibits superior mechanical flexibility and cycling stability. |
| format | Article |
| id | doaj-art-dc5f4e0aaef44b31a6e0a7d16869316a |
| institution | DOAJ |
| issn | 2791-0091 2790-8119 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Tsinghua University Press |
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| series | Nano Research Energy |
| spelling | doaj-art-dc5f4e0aaef44b31a6e0a7d16869316a2025-08-20T03:05:42ZengTsinghua University PressNano Research Energy2791-00912790-81192025-06-0142e912015110.26599/NRE.2024.9120151Bimetallic phosphides-oxides heterostructures coupled heteroatom-doped carbon as bifunctional electrocatalysts for Zn-air batteriesRuiyu Qi0Yiliang Shi1Wenhao Tang2Tianli Liu3Li Gao4Kewei Teng5Ruiping Liu6School of Chemical & Environmental Engineering, China University of Mining & Technology (Beijing), Beijing 100083, ChinaSchool of Chemical & Environmental Engineering, China University of Mining & Technology (Beijing), Beijing 100083, ChinaSchool of Chemical & Environmental Engineering, China University of Mining & Technology (Beijing), Beijing 100083, ChinaSchool of Chemical & Environmental Engineering, China University of Mining & Technology (Beijing), Beijing 100083, ChinaSchool of Mechanical Engineering, Qinghai University, Xining 810016, ChinaSchool of Chemical & Environmental Engineering, China University of Mining & Technology (Beijing), Beijing 100083, ChinaSchool of Chemical & Environmental Engineering, China University of Mining & Technology (Beijing), Beijing 100083, ChinaDesigning efficient bifunctional catalysts with multi-component composites is essential for the application of zinc-air batteries (ZABs). Herein, a bimetallic phosphides-oxides heterostructures coupled heteroatom-doped carbon (FeCoP-FeCo2O4@PNPC) was designed by in-situ growth of phosphor-oxide heterostructures on heteroatom-doped carbon materials and employed as bifunctional electrocatalyst for ZABs. The heteroatom-doped carbon substrate with ORR active sites can effectively improve the conductivity and the double transition metal atoms can enhance the catalytic activity. The heterostructure adjusts the d-band center, making the material gain and loss of electrons are at a medium level, which is conducive to the material’s capture of raw materials and the release of products. is beneficial to electron transfer. The dense FeCo2O4 nanorods act as a protection layer to improve stability, and the oxide-phosphide heterostructure and synergistic coupling with the heteroatom-doped carbon substrate also contribute to the catalytic activity. The small ΔE of 0.765 V for catalyzing both OER and ORR, high power density of 121.6 mW·cm–2 and the extraordinary long-term stability of more than 240 h for liquid state rechargeable ZAB can be realized. The flexible solid-state rechargeable ZAB with FeCoP-FeCo2O4@PNPC also exhibits superior mechanical flexibility and cycling stability.https://www.sciopen.com/article/10.26599/NRE.2024.9120151bimetallic heterostructuresbifunctional electrocatalystheteroatom-doped carbonzinc-air batteries |
| spellingShingle | Ruiyu Qi Yiliang Shi Wenhao Tang Tianli Liu Li Gao Kewei Teng Ruiping Liu Bimetallic phosphides-oxides heterostructures coupled heteroatom-doped carbon as bifunctional electrocatalysts for Zn-air batteries Nano Research Energy bimetallic heterostructures bifunctional electrocatalyst heteroatom-doped carbon zinc-air batteries |
| title | Bimetallic phosphides-oxides heterostructures coupled heteroatom-doped carbon as bifunctional electrocatalysts for Zn-air batteries |
| title_full | Bimetallic phosphides-oxides heterostructures coupled heteroatom-doped carbon as bifunctional electrocatalysts for Zn-air batteries |
| title_fullStr | Bimetallic phosphides-oxides heterostructures coupled heteroatom-doped carbon as bifunctional electrocatalysts for Zn-air batteries |
| title_full_unstemmed | Bimetallic phosphides-oxides heterostructures coupled heteroatom-doped carbon as bifunctional electrocatalysts for Zn-air batteries |
| title_short | Bimetallic phosphides-oxides heterostructures coupled heteroatom-doped carbon as bifunctional electrocatalysts for Zn-air batteries |
| title_sort | bimetallic phosphides oxides heterostructures coupled heteroatom doped carbon as bifunctional electrocatalysts for zn air batteries |
| topic | bimetallic heterostructures bifunctional electrocatalyst heteroatom-doped carbon zinc-air batteries |
| url | https://www.sciopen.com/article/10.26599/NRE.2024.9120151 |
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