Wood-derived freestanding integrated electrode with robust interface-coupling effect boosted bifunctionality for rechargeable zinc-air batteries
Fabricating non-noble metal-based carbon air electrodes with highly efficient bifunctionality is big challenge owing to the sluggish kinetics of oxygen reduction/evolution reaction (ORR/OER). The efficient cathode catalyst is urgently needed to further improve the performance of rechargeable zinc-ai...
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KeAi Communications Co., Ltd.
2024-12-01
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| Series: | Green Energy & Environment |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468025723001620 |
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| author | Benji Zhou Nengneng Xu Liangcai Wu Dongqing Cai Eileen H. Yu Jinli Qiao |
| author_facet | Benji Zhou Nengneng Xu Liangcai Wu Dongqing Cai Eileen H. Yu Jinli Qiao |
| author_sort | Benji Zhou |
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| description | Fabricating non-noble metal-based carbon air electrodes with highly efficient bifunctionality is big challenge owing to the sluggish kinetics of oxygen reduction/evolution reaction (ORR/OER). The efficient cathode catalyst is urgently needed to further improve the performance of rechargeable zinc-air batteries. Herein, an activation-doping assisted interface modification strategy is demonstrated based on freestanding integrated carbon composite (CoNiLDH@NPC) composed of wood-based N and P doped active carbon (NPC) and CoNi layer double hydroxides (CoNiLDH). In the light of its large specific surface area and unique defective structure, CoNiLDH@NPC with strong interface-coupling effect in 2D-3D micro-nanostructure exhibits outstanding bifunctionality. Such carbon composites show half-wave potential of 0.85 V for ORR, overpotential of 320 mV with current density of 10 mA cm−2 for OER, and ultra-low gap of 0.70 V. Furthermore, highly-ordered open channels of wood provide enormous space to form abundant triple-phase boundary for accelerating the catalytic process. Consequently, zinc-air batteries using CoNiLDH@NPC show high power density (aqueous: 263 mW cm−2, quasi-solid-state: 65.8 mW cm−2) and long-term stability (aqueous: 500 h, quasi-solid-state: 120 h). This integrated protocol opens a new avenue for the rational design of efficient freestanding air electrode from biomass resources. |
| format | Article |
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| institution | Kabale University |
| issn | 2468-0257 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | KeAi Communications Co., Ltd. |
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| series | Green Energy & Environment |
| spelling | doaj-art-00cd5e8f03424dc3aef7b197cf7f0de02024-11-20T05:07:29ZengKeAi Communications Co., Ltd.Green Energy & Environment2468-02572024-12-0191218351846Wood-derived freestanding integrated electrode with robust interface-coupling effect boosted bifunctionality for rechargeable zinc-air batteriesBenji Zhou0Nengneng Xu1Liangcai Wu2Dongqing Cai3Eileen H. Yu4Jinli Qiao5State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Environmental Science and Engineering, Donghua University, 2999 Ren'min North Road, Shanghai, 201620, China; College of Science, Donghua University, 2999 Ren'min North Road, Shanghai, 201620, ChinaState Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Environmental Science and Engineering, Donghua University, 2999 Ren'min North Road, Shanghai, 201620, China; Shanghai Institute of Pollution Control and Ecological Security, 1515 North Zhongshan Road, Shanghai, 200092, ChinaCollege of Science, Donghua University, 2999 Ren'min North Road, Shanghai, 201620, China; Corresponding authors. State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Environmental Science and Engineering, Donghua University, 2999 Ren'min North Road, Shanghai, 201620, China.Shanghai Institute of Pollution Control and Ecological Security, 1515 North Zhongshan Road, Shanghai, 200092, China; Corresponding authors. State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Environmental Science and Engineering, Donghua University, 2999 Ren'min North Road, Shanghai, 201620, China.Department of Chemical Engineering, Loughborough University, Loughborough, LE11 3TU, UKState Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Environmental Science and Engineering, Donghua University, 2999 Ren'min North Road, Shanghai, 201620, China; Shanghai Institute of Pollution Control and Ecological Security, 1515 North Zhongshan Road, Shanghai, 200092, China; Corresponding authors. State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Environmental Science and Engineering, Donghua University, 2999 Ren'min North Road, Shanghai, 201620, China.Fabricating non-noble metal-based carbon air electrodes with highly efficient bifunctionality is big challenge owing to the sluggish kinetics of oxygen reduction/evolution reaction (ORR/OER). The efficient cathode catalyst is urgently needed to further improve the performance of rechargeable zinc-air batteries. Herein, an activation-doping assisted interface modification strategy is demonstrated based on freestanding integrated carbon composite (CoNiLDH@NPC) composed of wood-based N and P doped active carbon (NPC) and CoNi layer double hydroxides (CoNiLDH). In the light of its large specific surface area and unique defective structure, CoNiLDH@NPC with strong interface-coupling effect in 2D-3D micro-nanostructure exhibits outstanding bifunctionality. Such carbon composites show half-wave potential of 0.85 V for ORR, overpotential of 320 mV with current density of 10 mA cm−2 for OER, and ultra-low gap of 0.70 V. Furthermore, highly-ordered open channels of wood provide enormous space to form abundant triple-phase boundary for accelerating the catalytic process. Consequently, zinc-air batteries using CoNiLDH@NPC show high power density (aqueous: 263 mW cm−2, quasi-solid-state: 65.8 mW cm−2) and long-term stability (aqueous: 500 h, quasi-solid-state: 120 h). This integrated protocol opens a new avenue for the rational design of efficient freestanding air electrode from biomass resources.http://www.sciencedirect.com/science/article/pii/S2468025723001620Wood biomassBifunctional air electrodeFreestanding carbon compositeInterface-coupling effectZinc-air battery |
| spellingShingle | Benji Zhou Nengneng Xu Liangcai Wu Dongqing Cai Eileen H. Yu Jinli Qiao Wood-derived freestanding integrated electrode with robust interface-coupling effect boosted bifunctionality for rechargeable zinc-air batteries Green Energy & Environment Wood biomass Bifunctional air electrode Freestanding carbon composite Interface-coupling effect Zinc-air battery |
| title | Wood-derived freestanding integrated electrode with robust interface-coupling effect boosted bifunctionality for rechargeable zinc-air batteries |
| title_full | Wood-derived freestanding integrated electrode with robust interface-coupling effect boosted bifunctionality for rechargeable zinc-air batteries |
| title_fullStr | Wood-derived freestanding integrated electrode with robust interface-coupling effect boosted bifunctionality for rechargeable zinc-air batteries |
| title_full_unstemmed | Wood-derived freestanding integrated electrode with robust interface-coupling effect boosted bifunctionality for rechargeable zinc-air batteries |
| title_short | Wood-derived freestanding integrated electrode with robust interface-coupling effect boosted bifunctionality for rechargeable zinc-air batteries |
| title_sort | wood derived freestanding integrated electrode with robust interface coupling effect boosted bifunctionality for rechargeable zinc air batteries |
| topic | Wood biomass Bifunctional air electrode Freestanding carbon composite Interface-coupling effect Zinc-air battery |
| url | http://www.sciencedirect.com/science/article/pii/S2468025723001620 |
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