Periodic Assembly of Diblock Pt-Au Heteronanowires for the Methanol Oxidation Reaction
Periodic assembly of heterogeneous nanoparticles provides a strategy for integrating distinct nanocatalyst blocks where their synergic effects can be explored for diverse applications. To achieve the synergistic enhancement, an intimate clean interface is preferred which however is usually plagued by the bulky surfactant molecules used in the synthesis and assembly process. Herein, we showed the creation of one-dimensional Pt-Au nanowires (NWs) with periodic alternating Pt and Au nanoblocks, by assembling Pt-Au Janus nanoparticles with the assistance of peptide T7 (Ac-TLTTLTN-CONH2). It is demonstrated that the Pt-Au NWs showed much-improved performance in the methanol oxidation reaction (MOR), exhibiting 5.3 times higher specific activity and 2.5 times higher mass activity than the current state-of-the-art commercial Pt/C catalyst. In addition, the periodic heterostructure also improves the stability of Pt-Au NWs in the MOR, where the Pt-Au NWs retained 93.9% of their initial mass activity much higher than commercial Pt/C (30.6%).
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:23 |
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| Enthalten in: |
Nano letters - 23(2023), 7 vom: 12. Apr., Seite 2758-2763 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Liu, Yang [VerfasserIn] |
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| Links: |
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| Themen: |
Diblock assembly |
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| Anmerkungen: |
Date Completed 12.04.2023 Date Revised 12.04.2023 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1021/acs.nanolett.3c00029 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM354765248 |
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| 500 | |a Date Revised 12.04.2023 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a Periodic assembly of heterogeneous nanoparticles provides a strategy for integrating distinct nanocatalyst blocks where their synergic effects can be explored for diverse applications. To achieve the synergistic enhancement, an intimate clean interface is preferred which however is usually plagued by the bulky surfactant molecules used in the synthesis and assembly process. Herein, we showed the creation of one-dimensional Pt-Au nanowires (NWs) with periodic alternating Pt and Au nanoblocks, by assembling Pt-Au Janus nanoparticles with the assistance of peptide T7 (Ac-TLTTLTN-CONH2). It is demonstrated that the Pt-Au NWs showed much-improved performance in the methanol oxidation reaction (MOR), exhibiting 5.3 times higher specific activity and 2.5 times higher mass activity than the current state-of-the-art commercial Pt/C catalyst. In addition, the periodic heterostructure also improves the stability of Pt-Au NWs in the MOR, where the Pt-Au NWs retained 93.9% of their initial mass activity much higher than commercial Pt/C (30.6%) | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Pt−Au heteronanowires | |
| 650 | 4 | |a diblock assembly | |
| 650 | 4 | |a methanol oxidation reaction | |
| 700 | 1 | |a Zhu, Enbo |e verfasserin |4 aut | |
| 700 | 1 | |a Huang, Jin |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Ao |e verfasserin |4 aut | |
| 700 | 1 | |a Shah, Aamir Hassan |e verfasserin |4 aut | |
| 700 | 1 | |a Jia, Qingying |e verfasserin |4 aut | |
| 700 | 1 | |a Xu, Mingjie |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Ershuai |e verfasserin |4 aut | |
| 700 | 1 | |a Sun, Qiang |e verfasserin |4 aut | |
| 700 | 1 | |a Duan, Xiangfeng |e verfasserin |4 aut | |
| 700 | 1 | |a Huang, Yu |e verfasserin |4 aut | |
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