Boosting formate electrooxidation by heterostructured PtPd alloy and oxides nanowires
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 (P...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
2024
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| Online Access: | https://hdl.handle.net/10356/180118 |
| _version_ | 1811686301071572992 |
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| author | Wang, Tian-Jiao Sun, Li-Bo Ai, Xuan Chen, Pei Chen, Yu Wang, Xin |
| author2 | School of Chemistry, Chemical Engineering and Biotechnology |
| author_facet | School of Chemistry, Chemical Engineering and Biotechnology Wang, Tian-Jiao Sun, Li-Bo Ai, Xuan Chen, Pei Chen, Yu Wang, Xin |
| author_sort | Wang, Tian-Jiao |
| collection | NTU |
| description | 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. |
| first_indexed | 2024-10-01T04:58:14Z |
| format | Journal Article |
| id | ntu-10356/180118 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:58:14Z |
| publishDate | 2024 |
| record_format | dspace |
| spelling | ntu-10356/1801182024-09-20T15:31:40Z Boosting formate electrooxidation by heterostructured PtPd alloy and oxides nanowires Wang, Tian-Jiao Sun, Li-Bo Ai, Xuan Chen, Pei Chen, Yu Wang, Xin School of Chemistry, Chemical Engineering and Biotechnology Cambridge Centre for Advanced Research and Education in Singapore Ltd Chemistry Direct formate fuel cells Formate electrooxidation 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. Published version This project was supported by the National Natural Science Foundation of China (No. 22272103), Science and Technology Innovation Team of Shaanxi Province (No. 2023-CX-TD-27), Fundamental Research Funds for the Central Universities (No. GK202202001), the 111 Project (No. B14041), and Sanqin scholars innovation teams in Shaanxi Province, China. X.W. acknowledged the startup grant by City University of Hong Kong (Grant No. 9020005), ITF-RTH – Global STEM Professorship (No.9446008), and Hong Kong Branch of National Precious Metals Material Engineering Research Center – ITC Fund. 2024-09-18T00:42:16Z 2024-09-18T00:42:16Z 2024 Journal Article Wang, T., Sun, L., Ai, X., Chen, P., Chen, Y. & Wang, X. (2024). Boosting formate electrooxidation by heterostructured PtPd alloy and oxides nanowires. Advanced Materials, 36(27), e2403664-. https://dx.doi.org/10.1002/adma.202403664 0935-9648 https://hdl.handle.net/10356/180118 10.1002/adma.202403664 38625813 2-s2.0-85191330508 27 36 e2403664 en Advanced Materials © 2024 The Authors. Advanced Materials published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes. application/pdf |
| spellingShingle | Chemistry Direct formate fuel cells Formate electrooxidation Wang, Tian-Jiao Sun, Li-Bo Ai, Xuan Chen, Pei Chen, Yu Wang, Xin Boosting formate electrooxidation by heterostructured PtPd alloy and oxides nanowires |
| title | Boosting formate electrooxidation by heterostructured PtPd alloy and oxides nanowires |
| title_full | Boosting formate electrooxidation by heterostructured PtPd alloy and oxides nanowires |
| title_fullStr | Boosting formate electrooxidation by heterostructured PtPd alloy and oxides nanowires |
| title_full_unstemmed | Boosting formate electrooxidation by heterostructured PtPd alloy and oxides nanowires |
| title_short | Boosting formate electrooxidation by heterostructured PtPd alloy and oxides nanowires |
| title_sort | boosting formate electrooxidation by heterostructured ptpd alloy and oxides nanowires |
| topic | Chemistry Direct formate fuel cells Formate electrooxidation |
| url | https://hdl.handle.net/10356/180118 |
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