Design of Co Nanoparticles‐Encapsulated by Boron and Nitrogen Co‐Doped Carbon Nanosheets as Highly Efficient Electrocatalyst for Oxygen Reduction Reaction
Abstract In this paper, for the first time, a rationally designed strategy for synthesis of Co nanoparticles encapsulated by boron and nitrogen co‐doped carbon nanosheets (CNs), namely B, N‐Co/CNs, as highly efficient electrocatalyst for oxygen reduction reaction (ORR) is demonstrated. The generated...
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2021-12-01
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| Series: | Advanced Materials Interfaces |
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| Online Access: | https://doi.org/10.1002/admi.202101454 |
| _version_ | 1797763918318272512 |
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| author | Wen‐Jun Niu Qiao‐Qiao Sun Ya‐Ping Wang Bing‐Ni Gu Ming‐Jin Liu Jin‐Zhong He Jiang‐Lei Chen Chia‐Chen Chung Wen‐Wu Liu Yu‐Lun Chueh |
| author_facet | Wen‐Jun Niu Qiao‐Qiao Sun Ya‐Ping Wang Bing‐Ni Gu Ming‐Jin Liu Jin‐Zhong He Jiang‐Lei Chen Chia‐Chen Chung Wen‐Wu Liu Yu‐Lun Chueh |
| author_sort | Wen‐Jun Niu |
| collection | DOAJ |
| description | Abstract In this paper, for the first time, a rationally designed strategy for synthesis of Co nanoparticles encapsulated by boron and nitrogen co‐doped carbon nanosheets (CNs), namely B, N‐Co/CNs, as highly efficient electrocatalyst for oxygen reduction reaction (ORR) is demonstrated. The generated Co nanoparticles not only create well‐defined heterointerfaces with high conductivity to overcome the poor ORR activity but also promote the formation of robust graphitic carbon. The co‐existence of boron and nitrogen atoms can increase the highest occupied molecular orbital energy of sp2 hybridization, activating π electrons in graphitic CNs, thereby enhancing the activity of the catalyst. The B, N‐Co/CNs exhibit a comparable half‐wave potential (E1/2 = 0.83 V) to that of commercial Pt/C catalyst (E1/2 = 0.85 V) with a larger current density for ORR. Importantly, the homemade disposable Zn‐air battery (ZAB) is able to deliver excellent performance, including a peak power density of 93.93 mW cm−2 and a specific capacity of 727.5 mAh g−1, outperforming the Pt/C catalyst. The findings highlight a new guideline for constructing B, N‐Co/CNs catalyst with a rationally designed structure toward superior property for advanced metal‐air cathode materials. |
| first_indexed | 2024-03-12T19:48:17Z |
| format | Article |
| id | doaj.art-80e3a7d2b8f84f918c0c75bfeeb0d12f |
| institution | Directory Open Access Journal |
| issn | 2196-7350 |
| language | English |
| last_indexed | 2024-03-12T19:48:17Z |
| publishDate | 2021-12-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Materials Interfaces |
| spelling | doaj.art-80e3a7d2b8f84f918c0c75bfeeb0d12f2023-08-02T03:24:30ZengWiley-VCHAdvanced Materials Interfaces2196-73502021-12-01824n/an/a10.1002/admi.202101454Design of Co Nanoparticles‐Encapsulated by Boron and Nitrogen Co‐Doped Carbon Nanosheets as Highly Efficient Electrocatalyst for Oxygen Reduction ReactionWen‐Jun Niu0Qiao‐Qiao Sun1Ya‐Ping Wang2Bing‐Ni Gu3Ming‐Jin Liu4Jin‐Zhong He5Jiang‐Lei Chen6Chia‐Chen Chung7Wen‐Wu Liu8Yu‐Lun Chueh9State Key Laboratory of Advanced Processing and Recycling of Non‐ferrous Metals Lanzhou University of Technology Lanzhou 730050 P. R. ChinaState Key Laboratory of Advanced Processing and Recycling of Non‐ferrous Metals Lanzhou University of Technology Lanzhou 730050 P. R. ChinaState Key Laboratory of Advanced Processing and Recycling of Non‐ferrous Metals Lanzhou University of Technology Lanzhou 730050 P. R. ChinaDepartment of Materials Science and Engineering National Tsing Hua University Hsinchu 30013 TaiwanDepartment of Materials Science and Engineering National Tsing Hua University Hsinchu 30013 TaiwanState Key Laboratory of Advanced Processing and Recycling of Non‐ferrous Metals Lanzhou University of Technology Lanzhou 730050 P. R. ChinaState Key Laboratory of Advanced Processing and Recycling of Non‐ferrous Metals Lanzhou University of Technology Lanzhou 730050 P. R. ChinaDepartment of Materials Science and Engineering National Tsing Hua University Hsinchu 30013 TaiwanState Key Laboratory of Advanced Processing and Recycling of Non‐ferrous Metals Lanzhou University of Technology Lanzhou 730050 P. R. ChinaDepartment of Materials Science and Engineering National Tsing Hua University Hsinchu 30013 TaiwanAbstract In this paper, for the first time, a rationally designed strategy for synthesis of Co nanoparticles encapsulated by boron and nitrogen co‐doped carbon nanosheets (CNs), namely B, N‐Co/CNs, as highly efficient electrocatalyst for oxygen reduction reaction (ORR) is demonstrated. The generated Co nanoparticles not only create well‐defined heterointerfaces with high conductivity to overcome the poor ORR activity but also promote the formation of robust graphitic carbon. The co‐existence of boron and nitrogen atoms can increase the highest occupied molecular orbital energy of sp2 hybridization, activating π electrons in graphitic CNs, thereby enhancing the activity of the catalyst. The B, N‐Co/CNs exhibit a comparable half‐wave potential (E1/2 = 0.83 V) to that of commercial Pt/C catalyst (E1/2 = 0.85 V) with a larger current density for ORR. Importantly, the homemade disposable Zn‐air battery (ZAB) is able to deliver excellent performance, including a peak power density of 93.93 mW cm−2 and a specific capacity of 727.5 mAh g−1, outperforming the Pt/C catalyst. The findings highlight a new guideline for constructing B, N‐Co/CNs catalyst with a rationally designed structure toward superior property for advanced metal‐air cathode materials.https://doi.org/10.1002/admi.202101454carbon nanosheetsdisposable Zn‐air batteryheteroatom dopingM‐N/Coxygen reduction reaction |
| spellingShingle | Wen‐Jun Niu Qiao‐Qiao Sun Ya‐Ping Wang Bing‐Ni Gu Ming‐Jin Liu Jin‐Zhong He Jiang‐Lei Chen Chia‐Chen Chung Wen‐Wu Liu Yu‐Lun Chueh Design of Co Nanoparticles‐Encapsulated by Boron and Nitrogen Co‐Doped Carbon Nanosheets as Highly Efficient Electrocatalyst for Oxygen Reduction Reaction Advanced Materials Interfaces carbon nanosheets disposable Zn‐air battery heteroatom doping M‐N/C oxygen reduction reaction |
| title | Design of Co Nanoparticles‐Encapsulated by Boron and Nitrogen Co‐Doped Carbon Nanosheets as Highly Efficient Electrocatalyst for Oxygen Reduction Reaction |
| title_full | Design of Co Nanoparticles‐Encapsulated by Boron and Nitrogen Co‐Doped Carbon Nanosheets as Highly Efficient Electrocatalyst for Oxygen Reduction Reaction |
| title_fullStr | Design of Co Nanoparticles‐Encapsulated by Boron and Nitrogen Co‐Doped Carbon Nanosheets as Highly Efficient Electrocatalyst for Oxygen Reduction Reaction |
| title_full_unstemmed | Design of Co Nanoparticles‐Encapsulated by Boron and Nitrogen Co‐Doped Carbon Nanosheets as Highly Efficient Electrocatalyst for Oxygen Reduction Reaction |
| title_short | Design of Co Nanoparticles‐Encapsulated by Boron and Nitrogen Co‐Doped Carbon Nanosheets as Highly Efficient Electrocatalyst for Oxygen Reduction Reaction |
| title_sort | design of co nanoparticles encapsulated by boron and nitrogen co doped carbon nanosheets as highly efficient electrocatalyst for oxygen reduction reaction |
| topic | carbon nanosheets disposable Zn‐air battery heteroatom doping M‐N/C oxygen reduction reaction |
| url | https://doi.org/10.1002/admi.202101454 |
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