Magic hybrid structure as multifunctional electrocatalyst surpassing benchmark Pt/C enables practical hydrazine fuel cell integrated with energy-saving H2 production
A hybrid catalyst structure can provide abundant active sites and tailored electronic properties, but the major challenge lies in achieving delicate control over its composition and architecture to improve the catalytic activity toward different electrochemical reactions simultaneously. Herein, we p...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co. Ltd.
2022-07-01
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| Series: | eScience |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667141722000763 |
| _version_ | 1797980255781126144 |
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| author | Ziyun Li Wentao Wang Qizhu Qian Yin Zhu Yafei Feng Yangyang Zhang Huaikun Zhang Mingyu Cheng Genqiang Zhang |
| author_facet | Ziyun Li Wentao Wang Qizhu Qian Yin Zhu Yafei Feng Yangyang Zhang Huaikun Zhang Mingyu Cheng Genqiang Zhang |
| author_sort | Ziyun Li |
| collection | DOAJ |
| description | A hybrid catalyst structure can provide abundant active sites and tailored electronic properties, but the major challenge lies in achieving delicate control over its composition and architecture to improve the catalytic activity toward different electrochemical reactions simultaneously. Herein, we present the rational design of a magic hybrid structure with low Pt loading (5.90 wt%), composed of CoPt3 and CoPt nanoparticles supported on N-doped carbon (CoPt3/CoPt⊂PLNC). Importantly, it shows superior multifunctional catalytic activity in alkaline conditions, requiring a low overpotential of 341 and 20 mV to achieve 10 mA cm−2 for the hydrazine oxidation reaction (HzOR)/hydrogen evolution reaction (HER), respectively, and it delivers a half-wave potential of 0.847 V for the oxygen reduction reaction (ORR). Theoretical calculations reveal that the metal–carbon hybrid modulates kinetic behavior and induces electron redistribution, achieving the energetic requirements for multiple electrocatalysis. We demonstrate sustainable H2 production utilizing solely the CoPt3/CoPt⊂PLNC catalyst, without external electric power input, suggesting its inspiring practical utility. |
| first_indexed | 2024-04-11T05:51:37Z |
| format | Article |
| id | doaj.art-ed8c6c95537d4686896c8d4d894f1297 |
| institution | Directory Open Access Journal |
| issn | 2667-1417 |
| language | English |
| last_indexed | 2024-04-11T05:51:37Z |
| publishDate | 2022-07-01 |
| publisher | KeAi Communications Co. Ltd. |
| record_format | Article |
| series | eScience |
| spelling | doaj.art-ed8c6c95537d4686896c8d4d894f12972022-12-22T04:42:03ZengKeAi Communications Co. Ltd.eScience2667-14172022-07-0124416427Magic hybrid structure as multifunctional electrocatalyst surpassing benchmark Pt/C enables practical hydrazine fuel cell integrated with energy-saving H2 productionZiyun Li0Wentao Wang1Qizhu Qian2Yin Zhu3Yafei Feng4Yangyang Zhang5Huaikun Zhang6Mingyu Cheng7Genqiang Zhang8Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, ChinaGuizhou Provincial Key Laboratory of Computational Nano-Material Science, Guizhou Education University, Guiyang, Guizhou, 550018, ChinaHefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, ChinaHefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, ChinaHefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, ChinaHefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, ChinaHefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, ChinaHefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, ChinaHefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China; Corresponding author.A hybrid catalyst structure can provide abundant active sites and tailored electronic properties, but the major challenge lies in achieving delicate control over its composition and architecture to improve the catalytic activity toward different electrochemical reactions simultaneously. Herein, we present the rational design of a magic hybrid structure with low Pt loading (5.90 wt%), composed of CoPt3 and CoPt nanoparticles supported on N-doped carbon (CoPt3/CoPt⊂PLNC). Importantly, it shows superior multifunctional catalytic activity in alkaline conditions, requiring a low overpotential of 341 and 20 mV to achieve 10 mA cm−2 for the hydrazine oxidation reaction (HzOR)/hydrogen evolution reaction (HER), respectively, and it delivers a half-wave potential of 0.847 V for the oxygen reduction reaction (ORR). Theoretical calculations reveal that the metal–carbon hybrid modulates kinetic behavior and induces electron redistribution, achieving the energetic requirements for multiple electrocatalysis. We demonstrate sustainable H2 production utilizing solely the CoPt3/CoPt⊂PLNC catalyst, without external electric power input, suggesting its inspiring practical utility.http://www.sciencedirect.com/science/article/pii/S2667141722000763ElectrocatalysisHybrid structureFuel cellHydrazine oxidationH2 production |
| spellingShingle | Ziyun Li Wentao Wang Qizhu Qian Yin Zhu Yafei Feng Yangyang Zhang Huaikun Zhang Mingyu Cheng Genqiang Zhang Magic hybrid structure as multifunctional electrocatalyst surpassing benchmark Pt/C enables practical hydrazine fuel cell integrated with energy-saving H2 production eScience Electrocatalysis Hybrid structure Fuel cell Hydrazine oxidation H2 production |
| title | Magic hybrid structure as multifunctional electrocatalyst surpassing benchmark Pt/C enables practical hydrazine fuel cell integrated with energy-saving H2 production |
| title_full | Magic hybrid structure as multifunctional electrocatalyst surpassing benchmark Pt/C enables practical hydrazine fuel cell integrated with energy-saving H2 production |
| title_fullStr | Magic hybrid structure as multifunctional electrocatalyst surpassing benchmark Pt/C enables practical hydrazine fuel cell integrated with energy-saving H2 production |
| title_full_unstemmed | Magic hybrid structure as multifunctional electrocatalyst surpassing benchmark Pt/C enables practical hydrazine fuel cell integrated with energy-saving H2 production |
| title_short | Magic hybrid structure as multifunctional electrocatalyst surpassing benchmark Pt/C enables practical hydrazine fuel cell integrated with energy-saving H2 production |
| title_sort | magic hybrid structure as multifunctional electrocatalyst surpassing benchmark pt c enables practical hydrazine fuel cell integrated with energy saving h2 production |
| topic | Electrocatalysis Hybrid structure Fuel cell Hydrazine oxidation H2 production |
| url | http://www.sciencedirect.com/science/article/pii/S2667141722000763 |
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