One Dimensional AuAg Nanostructures as Anodic Catalysts in the Ethylene Glycol Oxidation
Direct alcohol fuel cells are highly promising as efficient power sources for various mobile and portable applications. However, for the further advancement of fuel cell technology it is necessary to develop new, cost-effective Pt-free electrocatalysts that could provide efficient alcohol oxidation...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-04-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/10/4/719 |
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| author | Daniel K. Kehoe Luis Romeral Ross Lundy Michael A. Morris Michael G. Lyons Yurii K. Gun’ko |
| author_facet | Daniel K. Kehoe Luis Romeral Ross Lundy Michael A. Morris Michael G. Lyons Yurii K. Gun’ko |
| author_sort | Daniel K. Kehoe |
| collection | DOAJ |
| description | Direct alcohol fuel cells are highly promising as efficient power sources for various mobile and portable applications. However, for the further advancement of fuel cell technology it is necessary to develop new, cost-effective Pt-free electrocatalysts that could provide efficient alcohol oxidation and also resist cross-over poisoning. Here, we report new electrocatalytic materials for ethylene glycol oxidation, which are based on AuAg linear nanostructures. We demonstrate a low temperature tunable synthesis that enables the preparation of one dimensional (1D) AuAg nanostructures ranging from nanowires to a new nano-necklace-like structure. Using a two-step method, we showed that, by aging the initial reaction mixture at various temperatures, we produced ultrathin AuAg nanowires with a diameter of 9.2 ± 2 and 3.8 ± 1.6 nm, respectively. These nanowires exhibited a high catalytic performance for the electro-oxidation of ethylene glycol with remarkable poisoning resistance. These results highlight the benefit of 1D metal alloy-based nanocatalysts for fuel cell applications and are expected to make an important contribution to the further development of fuel cell technology. |
| first_indexed | 2024-03-10T20:32:05Z |
| format | Article |
| id | doaj.art-95ded51eb85c4647ac4cb26a2bf24081 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T20:32:05Z |
| publishDate | 2020-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-95ded51eb85c4647ac4cb26a2bf240812023-11-19T21:17:53ZengMDPI AGNanomaterials2079-49912020-04-0110471910.3390/nano10040719One Dimensional AuAg Nanostructures as Anodic Catalysts in the Ethylene Glycol OxidationDaniel K. Kehoe0Luis Romeral1Ross Lundy2Michael A. Morris3Michael G. Lyons4Yurii K. Gun’ko5School of Chemistry, Trinity College Dublin, Dublin 2, IrelandSchool of Chemistry, Trinity College Dublin, Dublin 2, IrelandSchool of Chemistry, Trinity College Dublin, Dublin 2, IrelandSchool of Chemistry, Trinity College Dublin, Dublin 2, IrelandSchool of Chemistry, Trinity College Dublin, Dublin 2, IrelandSchool of Chemistry, Trinity College Dublin, Dublin 2, IrelandDirect alcohol fuel cells are highly promising as efficient power sources for various mobile and portable applications. However, for the further advancement of fuel cell technology it is necessary to develop new, cost-effective Pt-free electrocatalysts that could provide efficient alcohol oxidation and also resist cross-over poisoning. Here, we report new electrocatalytic materials for ethylene glycol oxidation, which are based on AuAg linear nanostructures. We demonstrate a low temperature tunable synthesis that enables the preparation of one dimensional (1D) AuAg nanostructures ranging from nanowires to a new nano-necklace-like structure. Using a two-step method, we showed that, by aging the initial reaction mixture at various temperatures, we produced ultrathin AuAg nanowires with a diameter of 9.2 ± 2 and 3.8 ± 1.6 nm, respectively. These nanowires exhibited a high catalytic performance for the electro-oxidation of ethylene glycol with remarkable poisoning resistance. These results highlight the benefit of 1D metal alloy-based nanocatalysts for fuel cell applications and are expected to make an important contribution to the further development of fuel cell technology.https://www.mdpi.com/2079-4991/10/4/719ultrathinnanowireanodic catalysttunable |
| spellingShingle | Daniel K. Kehoe Luis Romeral Ross Lundy Michael A. Morris Michael G. Lyons Yurii K. Gun’ko One Dimensional AuAg Nanostructures as Anodic Catalysts in the Ethylene Glycol Oxidation Nanomaterials ultrathin nanowire anodic catalyst tunable |
| title | One Dimensional AuAg Nanostructures as Anodic Catalysts in the Ethylene Glycol Oxidation |
| title_full | One Dimensional AuAg Nanostructures as Anodic Catalysts in the Ethylene Glycol Oxidation |
| title_fullStr | One Dimensional AuAg Nanostructures as Anodic Catalysts in the Ethylene Glycol Oxidation |
| title_full_unstemmed | One Dimensional AuAg Nanostructures as Anodic Catalysts in the Ethylene Glycol Oxidation |
| title_short | One Dimensional AuAg Nanostructures as Anodic Catalysts in the Ethylene Glycol Oxidation |
| title_sort | one dimensional auag nanostructures as anodic catalysts in the ethylene glycol oxidation |
| topic | ultrathin nanowire anodic catalyst tunable |
| url | https://www.mdpi.com/2079-4991/10/4/719 |
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