Synthesis and Oxygen Reduction Reaction Activity of Atomic and Nanoparticle Gold on Thiol-Functionalized Multiwall Carbon Nanotubes
We demonstrated the self-assembly of atomic Au on thiol-functionalized multiwall carbon nanotubes through covalent bonding and the formation of Au nanoparticles (NPs) upon a subsequent thermal treatment. Au NPs of 3.4 nm were found to exhibit higher ORR activity than that of 1.9 nm, which can be att...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | en_US |
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Electrochemical Society
2013
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| Online Access: | http://hdl.handle.net/1721.1/80812 |
| _version_ | 1826189542844006400 |
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| author | Kim, Junhyung Lee, Seung Woo Chen, Shuo Shao-Horn, Yang |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Kim, Junhyung Lee, Seung Woo Chen, Shuo Shao-Horn, Yang |
| author_sort | Kim, Junhyung |
| collection | MIT |
| description | We demonstrated the self-assembly of atomic Au on thiol-functionalized multiwall carbon nanotubes through covalent bonding and the formation of Au nanoparticles (NPs) upon a subsequent thermal treatment. Au NPs of 3.4 nm were found to exhibit higher ORR activity than that of 1.9 nm, which can be attributed to removal of thiols from Au NP surfaces. This hypothesis is supported by decreasing intrinsic ORR activity with increasing alkanethiol-coverage on polycrystalline-Au. The understanding on top of the novel synthetic route has led to the development of Au NPs less than 5 nm with the highest ORR activity reported to date. |
| first_indexed | 2024-09-23T08:16:30Z |
| format | Article |
| id | mit-1721.1/80812 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T08:16:30Z |
| publishDate | 2013 |
| publisher | Electrochemical Society |
| record_format | dspace |
| spelling | mit-1721.1/808122022-09-30T08:46:20Z Synthesis and Oxygen Reduction Reaction Activity of Atomic and Nanoparticle Gold on Thiol-Functionalized Multiwall Carbon Nanotubes Kim, Junhyung Lee, Seung Woo Chen, Shuo Shao-Horn, Yang Massachusetts Institute of Technology. Department of Mechanical Engineering Massachusetts Institute of Technology. Electrochemical Energy Laboratory Kim, Junhyung Lee, Seung Woo Chen, Shuo Shao-Horn, Yang We demonstrated the self-assembly of atomic Au on thiol-functionalized multiwall carbon nanotubes through covalent bonding and the formation of Au nanoparticles (NPs) upon a subsequent thermal treatment. Au NPs of 3.4 nm were found to exhibit higher ORR activity than that of 1.9 nm, which can be attributed to removal of thiols from Au NP surfaces. This hypothesis is supported by decreasing intrinsic ORR activity with increasing alkanethiol-coverage on polycrystalline-Au. The understanding on top of the novel synthetic route has led to the development of Au NPs less than 5 nm with the highest ORR activity reported to date. National Science Foundation (U.S.). Materials Research Science and Engineering Centers (Program) (Award DMR–0819762) United States. Dept. of Energy (DE-AC02-98CH10886) Brookhaven National Laboratory Samsung Foundation of Culture (Korea) (Scholarship) 2013-09-19T19:23:03Z 2013-09-19T19:23:03Z 2011-07 2011-06 Article http://purl.org/eprint/type/JournalArticle 10990062 http://hdl.handle.net/1721.1/80812 Kim, Junhyung, Seung Woo Lee, Shuo Chen, and Yang Shao-Horn. Synthesis and Oxygen Reduction Reaction Activity of Atomic and Nanoparticle Gold on Thiol-Functionalized Multiwall Carbon Nanotubes. Electrochemical and Solid-State Letters 14, no. 10 (2011): B105. Copyright © 2011 by ECS -- The Electrochemical Society en_US http://dx.doi.org/10.1149/1.3612270 Electrochemical and Solid-State Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf Electrochemical Society MIT web domain |
| spellingShingle | Kim, Junhyung Lee, Seung Woo Chen, Shuo Shao-Horn, Yang Synthesis and Oxygen Reduction Reaction Activity of Atomic and Nanoparticle Gold on Thiol-Functionalized Multiwall Carbon Nanotubes |
| title | Synthesis and Oxygen Reduction Reaction Activity of Atomic and Nanoparticle Gold on Thiol-Functionalized Multiwall Carbon Nanotubes |
| title_full | Synthesis and Oxygen Reduction Reaction Activity of Atomic and Nanoparticle Gold on Thiol-Functionalized Multiwall Carbon Nanotubes |
| title_fullStr | Synthesis and Oxygen Reduction Reaction Activity of Atomic and Nanoparticle Gold on Thiol-Functionalized Multiwall Carbon Nanotubes |
| title_full_unstemmed | Synthesis and Oxygen Reduction Reaction Activity of Atomic and Nanoparticle Gold on Thiol-Functionalized Multiwall Carbon Nanotubes |
| title_short | Synthesis and Oxygen Reduction Reaction Activity of Atomic and Nanoparticle Gold on Thiol-Functionalized Multiwall Carbon Nanotubes |
| title_sort | synthesis and oxygen reduction reaction activity of atomic and nanoparticle gold on thiol functionalized multiwall carbon nanotubes |
| url | http://hdl.handle.net/1721.1/80812 |
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