Boosting Formate Electrooxidation by Heterostructured PtPd Alloy and Oxides Nanowires
Abstract: Direct formate fuel cells (DFFCs) receive increasing attention as promising technologies for the future energy mix and environmental sustainability, as formate can be made from carbon dioxide utilization and is carbon neutral. Herein, heterostructured platinum‐palladium alloy and oxides nanowires (PtPd‐ox NWs) with abundant defect sites are synthesized through a facile self‐template method and demonstrated high activity toward formate electrooxidation reaction (FOR). The electronic tuning arising from the heterojunction between alloy and oxides influence the work function of PtPd‐ox NWs. The sample with optimal work function reveals the favorable adsorption behavior for intermediates and strong interaction in the d−p orbital hybridization between Pt site and oxygen in formate, favoring the FOR direct pathway with a low energy barrier. Besides the thermodynamic regulation, the heterostructure can also provide sufficient hydroxyl species to facilitate the formation of carbon dioxide due to the ability of combining absorbed hydrogen and carbon monoxide at adjacent active sites, which contributes to the improvement of FOR kinetics on PtPd‐ox NWs. Thus, heterostructured PtPd‐ox NWs achieve dual regulation of FOR thermodynamics and kinetics, exhibiting remarkable performance and demonstrating potential in practical systems.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Boosting Formate Electrooxidation by Heterostructured PtPd Alloy and Oxides Nanowires ; day:25 ; month:04 ; year:2024 ; extent:12
Advanced materials ; (25.04.2024) (gesamt 12)
- Creator
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Wang, Tian‐Jiao
Sun, Li‐Bo
Ai, Xuan
Chen, Pei
Chen, Yu
Wang, Xin
- DOI
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10.1002/adma.202403664
- URN
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urn:nbn:de:101:1-2404251443167.779737601540
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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14.08.2025, 10:50 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Wang, Tian‐Jiao
- Sun, Li‐Bo
- Ai, Xuan
- Chen, Pei
- Chen, Yu
- Wang, Xin
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