Enhanced Performance of Sn@Pt Core-Shell Nanocatalysts Supported on Two Different Carbon Structures for the Hydrogen Oxidation Reaction in Acid Media
Sn@Pt core-shell nanocatalysts, supported on Vulcan XC-72 and home-developed nitrogen-doped graphene (Sn@Pt/C and Sn@Pt/NG, respectively), were evaluated for the hydrogen oxidation reaction (HOR) in acid electrolyte. The nanocatalysts were synthesized by the bromide anion exchange (BAE) method. TEM...
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2022/2982594 |
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| author | F. J. Rodríguez-Varela G. Hernández-Vázquez S. Dessources B. Escobar-Morales Aruna K. Kunhiraman M. A. Garcia-Lobato I. L. Alonso-Lemus |
| author_facet | F. J. Rodríguez-Varela G. Hernández-Vázquez S. Dessources B. Escobar-Morales Aruna K. Kunhiraman M. A. Garcia-Lobato I. L. Alonso-Lemus |
| author_sort | F. J. Rodríguez-Varela |
| collection | DOAJ |
| description | Sn@Pt core-shell nanocatalysts, supported on Vulcan XC-72 and home-developed nitrogen-doped graphene (Sn@Pt/C and Sn@Pt/NG, respectively), were evaluated for the hydrogen oxidation reaction (HOR) in acid electrolyte. The nanocatalysts were synthesized by the bromide anion exchange (BAE) method. TEM characterization confirmed the nanosize nature of Sn@Pt/C and Sn@Pt/NG, with an average particle size of 2.1 and 2.3 nm, respectively. Sn@Pt/C delivered a similar mass limiting current density (jl, m) of the HOR compared to Sn@Pt/NG, which was higher than those of Pt/C and Pt/NG (ca. 2 and 2.3-fold increase, respectively). Moreover, the Sn@Pt/C and Sn@Pt/NG core-shell nanocatalysts demonstrated a higher specific activity related to Pt/C and Pt/NG. Mass and specific Tafel slopes further demonstrated the improved catalytic activity of Sn@Pt/C for the HOR, followed by Sn@Pt/NG. The application of the nanocatalysts was proposed for polymer electrolyte membrane fuel cells (PEMFC). |
| format | Article |
| id | doaj-art-067bc7cc644a4d65b382b1ccdab54c0a |
| institution | Kabale University |
| issn | 2090-9071 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-067bc7cc644a4d65b382b1ccdab54c0a2025-08-20T03:55:23ZengWileyJournal of Chemistry2090-90712022-01-01202210.1155/2022/2982594Enhanced Performance of Sn@Pt Core-Shell Nanocatalysts Supported on Two Different Carbon Structures for the Hydrogen Oxidation Reaction in Acid MediaF. J. Rodríguez-Varela0G. Hernández-Vázquez1S. Dessources2B. Escobar-Morales3Aruna K. Kunhiraman4M. A. Garcia-Lobato5I. L. Alonso-Lemus6Sustentabilidad de Los Recursos Naturales y EnergíaSustentabilidad de Los Recursos Naturales y EnergíaLaboratoire des Sciences pour l’Environnement et l’Énergie (LS2E)CONACyTRathinam Research CenterFacultad de Ciencias QuímicasCONACyTSn@Pt core-shell nanocatalysts, supported on Vulcan XC-72 and home-developed nitrogen-doped graphene (Sn@Pt/C and Sn@Pt/NG, respectively), were evaluated for the hydrogen oxidation reaction (HOR) in acid electrolyte. The nanocatalysts were synthesized by the bromide anion exchange (BAE) method. TEM characterization confirmed the nanosize nature of Sn@Pt/C and Sn@Pt/NG, with an average particle size of 2.1 and 2.3 nm, respectively. Sn@Pt/C delivered a similar mass limiting current density (jl, m) of the HOR compared to Sn@Pt/NG, which was higher than those of Pt/C and Pt/NG (ca. 2 and 2.3-fold increase, respectively). Moreover, the Sn@Pt/C and Sn@Pt/NG core-shell nanocatalysts demonstrated a higher specific activity related to Pt/C and Pt/NG. Mass and specific Tafel slopes further demonstrated the improved catalytic activity of Sn@Pt/C for the HOR, followed by Sn@Pt/NG. The application of the nanocatalysts was proposed for polymer electrolyte membrane fuel cells (PEMFC).http://dx.doi.org/10.1155/2022/2982594 |
| spellingShingle | F. J. Rodríguez-Varela G. Hernández-Vázquez S. Dessources B. Escobar-Morales Aruna K. Kunhiraman M. A. Garcia-Lobato I. L. Alonso-Lemus Enhanced Performance of Sn@Pt Core-Shell Nanocatalysts Supported on Two Different Carbon Structures for the Hydrogen Oxidation Reaction in Acid Media Journal of Chemistry |
| title | Enhanced Performance of Sn@Pt Core-Shell Nanocatalysts Supported on Two Different Carbon Structures for the Hydrogen Oxidation Reaction in Acid Media |
| title_full | Enhanced Performance of Sn@Pt Core-Shell Nanocatalysts Supported on Two Different Carbon Structures for the Hydrogen Oxidation Reaction in Acid Media |
| title_fullStr | Enhanced Performance of Sn@Pt Core-Shell Nanocatalysts Supported on Two Different Carbon Structures for the Hydrogen Oxidation Reaction in Acid Media |
| title_full_unstemmed | Enhanced Performance of Sn@Pt Core-Shell Nanocatalysts Supported on Two Different Carbon Structures for the Hydrogen Oxidation Reaction in Acid Media |
| title_short | Enhanced Performance of Sn@Pt Core-Shell Nanocatalysts Supported on Two Different Carbon Structures for the Hydrogen Oxidation Reaction in Acid Media |
| title_sort | enhanced performance of sn pt core shell nanocatalysts supported on two different carbon structures for the hydrogen oxidation reaction in acid media |
| url | http://dx.doi.org/10.1155/2022/2982594 |
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