Ultrafine CoPt3 nanoparticles encapsulated in nitrogen‐doped carbon nanospheres for efficient water electrolysis
Abstract Rational design of nanostructures with excellent activity and stability for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) to realize efficient hydrogen production is essential for renewable energy development and conversion. Here, we have designed a special pyrolysis...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2022-10-01
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| Series: | Electrochemical Science Advances |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/elsa.202100082 |
| _version_ | 1797741987217014784 |
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| author | Junlu Bi Xuejun Zhai Jingqi Chi Xueke Wu Shaojin Chen Xinping Wang Lei Wang |
| author_facet | Junlu Bi Xuejun Zhai Jingqi Chi Xueke Wu Shaojin Chen Xinping Wang Lei Wang |
| author_sort | Junlu Bi |
| collection | DOAJ |
| description | Abstract Rational design of nanostructures with excellent activity and stability for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) to realize efficient hydrogen production is essential for renewable energy development and conversion. Here, we have designed a special pyrolysis reduction method for the synthesis of CoPt3 nanoparticles (NPs) embedded in N‐doped carbon nanospheres (CoPt3@NC). In this process, a facile impregnation combined with pyrolysis reduction strategy is carried out to produce well‐dispersed CoPt3 nanoparticles within the N‐doped carbon, and the resulting CoPt3@NC nanospheres with trace Pt content exhibit superior HER and OER activity to pure Pt@NC, which needs an ultralow overpotential of 65 mV and 360 mV to drive 10 mA/cm2 in 1.0 M KOH, respectively, and also with excellent long‐term durability. The excellent HER and OER activities of CoPt3@NC nanospheres are mainly ascribed to the high surface area, N‐doping, and synergistic effect between catalyst and carrier. This work provides a feasible strategy to design carbon‐based heterostructures with high catalytic activity and stable properties. |
| first_indexed | 2024-03-12T14:34:32Z |
| format | Article |
| id | doaj.art-b03e3f37ffff402787b54a14c40efbca |
| institution | Directory Open Access Journal |
| issn | 2698-5977 |
| language | English |
| last_indexed | 2024-03-12T14:34:32Z |
| publishDate | 2022-10-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Electrochemical Science Advances |
| spelling | doaj.art-b03e3f37ffff402787b54a14c40efbca2023-08-17T12:00:55ZengWiley-VCHElectrochemical Science Advances2698-59772022-10-0125n/an/a10.1002/elsa.202100082Ultrafine CoPt3 nanoparticles encapsulated in nitrogen‐doped carbon nanospheres for efficient water electrolysisJunlu Bi0Xuejun Zhai1Jingqi Chi2Xueke Wu3Shaojin Chen4Xinping Wang5Lei Wang6Key Laboratory of Eco‐chemical Engineering Key Laboratory of Optic‐electric Sensing and Analytical Chemistry of Life Science, Taishan Scholar Advantage and Characteristic Discipline Team of Eco Chemical Process and Technology College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology Qingdao PR ChinaKey Laboratory of Eco‐chemical Engineering Key Laboratory of Optic‐electric Sensing and Analytical Chemistry of Life Science, Taishan Scholar Advantage and Characteristic Discipline Team of Eco Chemical Process and Technology College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology Qingdao PR ChinaKey Laboratory of Eco‐chemical Engineering Key Laboratory of Optic‐electric Sensing and Analytical Chemistry of Life Science, Taishan Scholar Advantage and Characteristic Discipline Team of Eco Chemical Process and Technology College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology Qingdao PR ChinaKey Laboratory of Eco‐chemical Engineering Key Laboratory of Optic‐electric Sensing and Analytical Chemistry of Life Science, Taishan Scholar Advantage and Characteristic Discipline Team of Eco Chemical Process and Technology College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology Qingdao PR ChinaKey Laboratory of Eco‐chemical Engineering Key Laboratory of Optic‐electric Sensing and Analytical Chemistry of Life Science, Taishan Scholar Advantage and Characteristic Discipline Team of Eco Chemical Process and Technology College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology Qingdao PR ChinaCollege of Marine Science and Biological Engineering Qingdao University of Science and Technology Qingdao PR ChinaKey Laboratory of Eco‐chemical Engineering Key Laboratory of Optic‐electric Sensing and Analytical Chemistry of Life Science, Taishan Scholar Advantage and Characteristic Discipline Team of Eco Chemical Process and Technology College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology Qingdao PR ChinaAbstract Rational design of nanostructures with excellent activity and stability for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) to realize efficient hydrogen production is essential for renewable energy development and conversion. Here, we have designed a special pyrolysis reduction method for the synthesis of CoPt3 nanoparticles (NPs) embedded in N‐doped carbon nanospheres (CoPt3@NC). In this process, a facile impregnation combined with pyrolysis reduction strategy is carried out to produce well‐dispersed CoPt3 nanoparticles within the N‐doped carbon, and the resulting CoPt3@NC nanospheres with trace Pt content exhibit superior HER and OER activity to pure Pt@NC, which needs an ultralow overpotential of 65 mV and 360 mV to drive 10 mA/cm2 in 1.0 M KOH, respectively, and also with excellent long‐term durability. The excellent HER and OER activities of CoPt3@NC nanospheres are mainly ascribed to the high surface area, N‐doping, and synergistic effect between catalyst and carrier. This work provides a feasible strategy to design carbon‐based heterostructures with high catalytic activity and stable properties.https://doi.org/10.1002/elsa.202100082CoPt3@NC nanosphereshydrogen evolution reactionoxygen evolution reactionwater splitting |
| spellingShingle | Junlu Bi Xuejun Zhai Jingqi Chi Xueke Wu Shaojin Chen Xinping Wang Lei Wang Ultrafine CoPt3 nanoparticles encapsulated in nitrogen‐doped carbon nanospheres for efficient water electrolysis Electrochemical Science Advances CoPt3@NC nanospheres hydrogen evolution reaction oxygen evolution reaction water splitting |
| title | Ultrafine CoPt3 nanoparticles encapsulated in nitrogen‐doped carbon nanospheres for efficient water electrolysis |
| title_full | Ultrafine CoPt3 nanoparticles encapsulated in nitrogen‐doped carbon nanospheres for efficient water electrolysis |
| title_fullStr | Ultrafine CoPt3 nanoparticles encapsulated in nitrogen‐doped carbon nanospheres for efficient water electrolysis |
| title_full_unstemmed | Ultrafine CoPt3 nanoparticles encapsulated in nitrogen‐doped carbon nanospheres for efficient water electrolysis |
| title_short | Ultrafine CoPt3 nanoparticles encapsulated in nitrogen‐doped carbon nanospheres for efficient water electrolysis |
| title_sort | ultrafine copt3 nanoparticles encapsulated in nitrogen doped carbon nanospheres for efficient water electrolysis |
| topic | CoPt3@NC nanospheres hydrogen evolution reaction oxygen evolution reaction water splitting |
| url | https://doi.org/10.1002/elsa.202100082 |
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