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Nanoscale electrocatalysis : visualizing oxygen reduction at pristine, kinked, and oxidized sites on individual carbon nanotubes
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Byers, Joshua C., Güell, Aleix G. and Unwin, Patrick R. (2014) Nanoscale electrocatalysis : visualizing oxygen reduction at pristine, kinked, and oxidized sites on individual carbon nanotubes. Journal of the American Chemical Society, Volume 136 (Number 32). pp. 11252-11255. doi:10.1021/ja505708y ISSN 0002-7863.
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Official URL: http://dx.doi.org/10.1021/ja505708y
Abstract
There is a prevailing and widely adopted view that carbon nanotubes, which are finding considerable application in energy, healthcare, and electronics applications, are highly (electro)catalytically inert unless modified, doped, or defected. By visualizing the electrochemical reduction of oxygen (hydrogen peroxide generation) at high resolution along pristine (defect-free) regions of individual single-walled carbon nanotubes, we show that there is, in fact, significant activity comparable to that of standard gold electrocatalysts. Moreover, the activity is greatly enhanced at strained (kinked) sites and regions modified by oxidation. Single-walled carbon nanotubes are thus effective electrocatalysts in their own right and not just supports for other materials.
Item Type: | Journal Article | ||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | ||||||
Journal or Publication Title: | Journal of the American Chemical Society | ||||||
Publisher: | American Chemical Society | ||||||
ISSN: | 0002-7863 | ||||||
Official Date: | 25 July 2014 | ||||||
Dates: |
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Volume: | Volume 136 | ||||||
Number: | Number 32 | ||||||
Page Range: | pp. 11252-11255 | ||||||
DOI: | 10.1021/ja505708y | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||
Funder: | European Research Council (ERC) | ||||||
Grant number: | ERC-2009-AdG247143-QUANTIF |
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