Active Salt/Silica‐Templated 2D Mesoporous FeCo‐Nx‐Carbon as Bifunctional Oxygen Electrodes for Zinc–Air Batteries
Two types of templates, an active metal salt and silica nanoparticles, are used concurrently to achieve the facile synthesis of hierarchical meso/microporous FeCo‐Nx‐carbon nanosheets (meso/micro‐FeCo‐Nx‐CN) with highly dispersed metal sites. The resulting meso/micro‐FeCo‐Nx‐CN shows high and revers...
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| Vydáno v: | Angewandte Chemie International Edition Ročník 57; číslo 7; s. 1856 - 1862 |
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| Médium: | Journal Article |
| Jazyk: | angličtina |
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Weinheim
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12.02.2018
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| Vydání: | International ed. in English |
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| ISSN: | 1433-7851, 1521-3773, 1521-3773 |
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| Abstract | Two types of templates, an active metal salt and silica nanoparticles, are used concurrently to achieve the facile synthesis of hierarchical meso/microporous FeCo‐Nx‐carbon nanosheets (meso/micro‐FeCo‐Nx‐CN) with highly dispersed metal sites. The resulting meso/micro‐FeCo‐Nx‐CN shows high and reversible oxygen electrocatalytic performances for both ORR and OER, thus having potential for applications in rechargeable Zn–air battery. Our approach creates a new pathway to fabricate 2D meso/microporous structured carbon architectures for bifunctional oxygen electrodes in rechargeable Zn–air battery as well as opens avenues to the scale‐up production of rationally designed heteroatom‐doped catalytic materials for a broad range of applications.
Meso/microporous Fe/Co‐Nx‐doped carbon nanosheets prepared by an active salt/silica nanoparticle templating approach achieve high performance as bifunctional oxygen electrodes. The FeCo‐Nx‐carbon has a well‐defined 2D morphology and homogenous metal‐atom doping, yielding enriched active sites for ORR‐OER. These features lead to excellent reversible oxygen electrocatalytic performance for Zn–air batteries. |
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| AbstractList | Two types of templates, an active metal salt and silica nanoparticles, are used concurrently to achieve the facile synthesis of hierarchical meso/microporous FeCo-Nx -carbon nanosheets (meso/micro-FeCo-Nx -CN) with highly dispersed metal sites. The resulting meso/micro-FeCo-Nx -CN shows high and reversible oxygen electrocatalytic performances for both ORR and OER, thus having potential for applications in rechargeable Zn-air battery. Our approach creates a new pathway to fabricate 2D meso/microporous structured carbon architectures for bifunctional oxygen electrodes in rechargeable Zn-air battery as well as opens avenues to the scale-up production of rationally designed heteroatom-doped catalytic materials for a broad range of applications.Two types of templates, an active metal salt and silica nanoparticles, are used concurrently to achieve the facile synthesis of hierarchical meso/microporous FeCo-Nx -carbon nanosheets (meso/micro-FeCo-Nx -CN) with highly dispersed metal sites. The resulting meso/micro-FeCo-Nx -CN shows high and reversible oxygen electrocatalytic performances for both ORR and OER, thus having potential for applications in rechargeable Zn-air battery. Our approach creates a new pathway to fabricate 2D meso/microporous structured carbon architectures for bifunctional oxygen electrodes in rechargeable Zn-air battery as well as opens avenues to the scale-up production of rationally designed heteroatom-doped catalytic materials for a broad range of applications. Two types of templates, an active metal salt and silica nanoparticles, are used concurrently to achieve the facile synthesis of hierarchical meso/microporous FeCo‐Nx‐carbon nanosheets (meso/micro‐FeCo‐Nx‐CN) with highly dispersed metal sites. The resulting meso/micro‐FeCo‐Nx‐CN shows high and reversible oxygen electrocatalytic performances for both ORR and OER, thus having potential for applications in rechargeable Zn–air battery. Our approach creates a new pathway to fabricate 2D meso/microporous structured carbon architectures for bifunctional oxygen electrodes in rechargeable Zn–air battery as well as opens avenues to the scale‐up production of rationally designed heteroatom‐doped catalytic materials for a broad range of applications. Meso/microporous Fe/Co‐Nx‐doped carbon nanosheets prepared by an active salt/silica nanoparticle templating approach achieve high performance as bifunctional oxygen electrodes. The FeCo‐Nx‐carbon has a well‐defined 2D morphology and homogenous metal‐atom doping, yielding enriched active sites for ORR‐OER. These features lead to excellent reversible oxygen electrocatalytic performance for Zn–air batteries. Two types of templates, an active metal salt and silica nanoparticles, are used concurrently to achieve the facile synthesis of hierarchical meso/microporous FeCo‐Nx‐carbon nanosheets (meso/micro‐FeCo‐Nx‐CN) with highly dispersed metal sites. The resulting meso/micro‐FeCo‐Nx‐CN shows high and reversible oxygen electrocatalytic performances for both ORR and OER, thus having potential for applications in rechargeable Zn–air battery. Our approach creates a new pathway to fabricate 2D meso/microporous structured carbon architectures for bifunctional oxygen electrodes in rechargeable Zn–air battery as well as opens avenues to the scale‐up production of rationally designed heteroatom‐doped catalytic materials for a broad range of applications. |
| Author | Cheng, Chong Zhao, Xiaojia Thomas, Arne Li, Shuang Schmidt, Johannes |
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| SubjectTerms | Carbon Catalysis Electrodes heteroatom doping meso/microstructured carbon Metal air batteries Nanoparticles Oxygen Rechargeable batteries reversible oxygen electrocatalysts Silica Silicon dioxide Zinc-oxygen batteries zinc–air batteries |
| Title | Active Salt/Silica‐Templated 2D Mesoporous FeCo‐Nx‐Carbon as Bifunctional Oxygen Electrodes for Zinc–Air Batteries |
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