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Mechanically Interlocked Carbon Nanotubes as a Stable Electrocatalytic Platform for Oxygen Reduction
[Image: see text] Mechanically interlocking redox-active anthraquinone onto single-walled carbon nanotubes (AQ-MINT) gives a new and advanced example of a noncovalent architecture for an electrochemical platform. Electrochemical studies of AQ-MINT as an electrode reveal enhanced electrochemical stab...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American
Chemical Society
2020
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7383929/ https://www.ncbi.nlm.nih.gov/pubmed/32573248 http://dx.doi.org/10.1021/acsami.0c06516 |
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author | Wielend, Dominik Vera-Hidalgo, Mariano Seelajaroen, Hathaichanok Sariciftci, Niyazi Serdar Pérez, Emilio M. Whang, Dong Ryeol |
author_facet | Wielend, Dominik Vera-Hidalgo, Mariano Seelajaroen, Hathaichanok Sariciftci, Niyazi Serdar Pérez, Emilio M. Whang, Dong Ryeol |
author_sort | Wielend, Dominik |
collection | PubMed |
description | [Image: see text] Mechanically interlocking redox-active anthraquinone onto single-walled carbon nanotubes (AQ-MINT) gives a new and advanced example of a noncovalent architecture for an electrochemical platform. Electrochemical studies of AQ-MINT as an electrode reveal enhanced electrochemical stability in both aqueous and organic solvents compared to physisorbed AQ-based electrodes. While maintaining the electrochemical properties of the parent anthraquinone molecules, we observe a stable oxygen reduction reaction to hydrogen peroxide (H(2)O(2)). Using such AQ-MINT electrodes, 7 and 2 μmol of H(2)O(2) are produced over 8 h under basic and neutral conditions, while the control system of SWCNTs produces 2.2 and 0.5 μmol, respectively. These results reveal the potential of this rotaxane-type immobilization approach for heterogenized electrocatalysis. |
format | Online Article Text |
id | pubmed-7383929 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | American
Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-73839292020-07-28 Mechanically Interlocked Carbon Nanotubes as a Stable Electrocatalytic Platform for Oxygen Reduction Wielend, Dominik Vera-Hidalgo, Mariano Seelajaroen, Hathaichanok Sariciftci, Niyazi Serdar Pérez, Emilio M. Whang, Dong Ryeol ACS Appl Mater Interfaces [Image: see text] Mechanically interlocking redox-active anthraquinone onto single-walled carbon nanotubes (AQ-MINT) gives a new and advanced example of a noncovalent architecture for an electrochemical platform. Electrochemical studies of AQ-MINT as an electrode reveal enhanced electrochemical stability in both aqueous and organic solvents compared to physisorbed AQ-based electrodes. While maintaining the electrochemical properties of the parent anthraquinone molecules, we observe a stable oxygen reduction reaction to hydrogen peroxide (H(2)O(2)). Using such AQ-MINT electrodes, 7 and 2 μmol of H(2)O(2) are produced over 8 h under basic and neutral conditions, while the control system of SWCNTs produces 2.2 and 0.5 μmol, respectively. These results reveal the potential of this rotaxane-type immobilization approach for heterogenized electrocatalysis. American Chemical Society 2020-06-23 2020-07-22 /pmc/articles/PMC7383929/ /pubmed/32573248 http://dx.doi.org/10.1021/acsami.0c06516 Text en Copyright © 2020 American Chemical Society This is an open access article published under a Creative Commons Attribution (CC-BY) License (http://pubs.acs.org/page/policy/authorchoice_ccby_termsofuse.html) , which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited. |
spellingShingle | Wielend, Dominik Vera-Hidalgo, Mariano Seelajaroen, Hathaichanok Sariciftci, Niyazi Serdar Pérez, Emilio M. Whang, Dong Ryeol Mechanically Interlocked Carbon Nanotubes as a Stable Electrocatalytic Platform for Oxygen Reduction |
title | Mechanically
Interlocked Carbon Nanotubes as a Stable
Electrocatalytic Platform for Oxygen Reduction |
title_full | Mechanically
Interlocked Carbon Nanotubes as a Stable
Electrocatalytic Platform for Oxygen Reduction |
title_fullStr | Mechanically
Interlocked Carbon Nanotubes as a Stable
Electrocatalytic Platform for Oxygen Reduction |
title_full_unstemmed | Mechanically
Interlocked Carbon Nanotubes as a Stable
Electrocatalytic Platform for Oxygen Reduction |
title_short | Mechanically
Interlocked Carbon Nanotubes as a Stable
Electrocatalytic Platform for Oxygen Reduction |
title_sort | mechanically
interlocked carbon nanotubes as a stable
electrocatalytic platform for oxygen reduction |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7383929/ https://www.ncbi.nlm.nih.gov/pubmed/32573248 http://dx.doi.org/10.1021/acsami.0c06516 |
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