Single‐atom Pt on carbon nanotubes for selective electrocatalysis
Abstract Utilizing supported single atoms as catalysts presents an opportunity to reduce the usage of critical raw materials such as platinum, which are essential for electrochemical reactions such as hydrogen oxidation reaction (HOR). Herein, we describe the synthesis of a Pt single electrocatalyst...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2024-01-01
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| Series: | Carbon Energy |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/cey2.409 |
| _version_ | 1797337759542673408 |
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| author | Samuel S. Hardisty Xiaoqian Lin Anthony R. J. Kucernak David Zitoun |
| author_facet | Samuel S. Hardisty Xiaoqian Lin Anthony R. J. Kucernak David Zitoun |
| author_sort | Samuel S. Hardisty |
| collection | DOAJ |
| description | Abstract Utilizing supported single atoms as catalysts presents an opportunity to reduce the usage of critical raw materials such as platinum, which are essential for electrochemical reactions such as hydrogen oxidation reaction (HOR). Herein, we describe the synthesis of a Pt single electrocatalyst inside single‐walled carbon nanotubes (SWCNTs) via a redox reaction. Characterizations via electron microscopy, X‐ray photoelectron microscopy, and X‐ray absorption spectroscopy show the single‐atom nature of the Pt. The electrochemical behavior of the sample to hydrogen and oxygen was investigated using the advanced floating electrode technique, which minimizes mass transport limitations and gives a thorough insight into the activity of the electrocatalyst. The single‐atom samples showed higher HOR activity than state‐of‐the‐art 30% Pt/C while almost no oxygen reduction reaction activity in the proton exchange membrane fuel cell operating range. The selective activity toward HOR arose as the main fingerprint of the catalyst confinement in the SWCNTs. |
| first_indexed | 2024-03-08T09:18:18Z |
| format | Article |
| id | doaj.art-a0202fb69fd74db1b893b8a204e44b3a |
| institution | Directory Open Access Journal |
| issn | 2637-9368 |
| language | English |
| last_indexed | 2024-03-08T09:18:18Z |
| publishDate | 2024-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Carbon Energy |
| spelling | doaj.art-a0202fb69fd74db1b893b8a204e44b3a2024-01-31T13:56:25ZengWileyCarbon Energy2637-93682024-01-0161n/an/a10.1002/cey2.409Single‐atom Pt on carbon nanotubes for selective electrocatalysisSamuel S. Hardisty0Xiaoqian Lin1Anthony R. J. Kucernak2David Zitoun3Department of Chemistry, Bar Ilan Institute of Nanotechnology and Advanced Materials (BINA) Bar Ilan University Ramat Gan IsraelDepartment of Chemistry, Molecular Science Research Hub, Imperial College London London UKDepartment of Chemistry, Molecular Science Research Hub, Imperial College London London UKDepartment of Chemistry, Bar Ilan Institute of Nanotechnology and Advanced Materials (BINA) Bar Ilan University Ramat Gan IsraelAbstract Utilizing supported single atoms as catalysts presents an opportunity to reduce the usage of critical raw materials such as platinum, which are essential for electrochemical reactions such as hydrogen oxidation reaction (HOR). Herein, we describe the synthesis of a Pt single electrocatalyst inside single‐walled carbon nanotubes (SWCNTs) via a redox reaction. Characterizations via electron microscopy, X‐ray photoelectron microscopy, and X‐ray absorption spectroscopy show the single‐atom nature of the Pt. The electrochemical behavior of the sample to hydrogen and oxygen was investigated using the advanced floating electrode technique, which minimizes mass transport limitations and gives a thorough insight into the activity of the electrocatalyst. The single‐atom samples showed higher HOR activity than state‐of‐the‐art 30% Pt/C while almost no oxygen reduction reaction activity in the proton exchange membrane fuel cell operating range. The selective activity toward HOR arose as the main fingerprint of the catalyst confinement in the SWCNTs.https://doi.org/10.1002/cey2.409confinementelectrocatalysishydrogenplatinumsingle atom catalysts |
| spellingShingle | Samuel S. Hardisty Xiaoqian Lin Anthony R. J. Kucernak David Zitoun Single‐atom Pt on carbon nanotubes for selective electrocatalysis Carbon Energy confinement electrocatalysis hydrogen platinum single atom catalysts |
| title | Single‐atom Pt on carbon nanotubes for selective electrocatalysis |
| title_full | Single‐atom Pt on carbon nanotubes for selective electrocatalysis |
| title_fullStr | Single‐atom Pt on carbon nanotubes for selective electrocatalysis |
| title_full_unstemmed | Single‐atom Pt on carbon nanotubes for selective electrocatalysis |
| title_short | Single‐atom Pt on carbon nanotubes for selective electrocatalysis |
| title_sort | single atom pt on carbon nanotubes for selective electrocatalysis |
| topic | confinement electrocatalysis hydrogen platinum single atom catalysts |
| url | https://doi.org/10.1002/cey2.409 |
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