In situ electrochemical quantification of active sites in Fe–N/C non-precious metal catalysts

In situ electrochemical quantification of active sites in Fe–N/C non-precious metal catalysts

Fe-N/C catalysts show surprising activity towards oxygen reduction in fuel cells. However, there is significant uncertainty as to the structure of the active site. Here, the authors quantify the number and turnover frequency of the active sites by reversibly blocking those sites with nitrite (NO2¯)....

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Bibliographic Details
Main Authors: Daniel Malko, Anthony Kucernak, Thiago Lopes
Format: Article
Language:English
Published: Nature Publishing Group 2016-10-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/ncomms13285
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spelling doaj-14944471b88f4a40a6a957c3c921c2672021-05-11T10:39:48ZengNature Publishing GroupNature Communications2041-17232016-10-01711710.1038/ncomms13285In situ electrochemical quantification of active sites in Fe–N/C non-precious metal catalystsDaniel Malko0Anthony Kucernak1Thiago Lopes2Department of Chemistry, Imperial College London, South Kensington CampusDepartment of Chemistry, Imperial College London, South Kensington CampusFuel Cells and Hydrogen Centre, Nuclear and Energy Research Institute, IPEN-CNEN/SP, Sao Paulo 05508-000, BrazilFe-N/C catalysts show surprising activity towards oxygen reduction in fuel cells. However, there is significant uncertainty as to the structure of the active site. Here, the authors quantify the number and turnover frequency of the active sites by reversibly blocking those sites with nitrite (NO2¯).https://doi.org/10.1038/ncomms13285
collection DOAJ
language English
format Article
sources DOAJ
author Daniel Malko
Anthony Kucernak
Thiago Lopes
spellingShingle Daniel Malko
Anthony Kucernak
Thiago Lopes
In situ electrochemical quantification of active sites in Fe–N/C non-precious metal catalysts
Nature Communications
author_facet Daniel Malko
Anthony Kucernak
Thiago Lopes
author_sort Daniel Malko
title In situ electrochemical quantification of active sites in Fe–N/C non-precious metal catalysts
title_short In situ electrochemical quantification of active sites in Fe–N/C non-precious metal catalysts
title_full In situ electrochemical quantification of active sites in Fe–N/C non-precious metal catalysts
title_fullStr In situ electrochemical quantification of active sites in Fe–N/C non-precious metal catalysts
title_full_unstemmed In situ electrochemical quantification of active sites in Fe–N/C non-precious metal catalysts
title_sort in situ electrochemical quantification of active sites in fe–n/c non-precious metal catalysts
publisher Nature Publishing Group
series Nature Communications
issn 2041-1723
publishDate 2016-10-01
description Fe-N/C catalysts show surprising activity towards oxygen reduction in fuel cells. However, there is significant uncertainty as to the structure of the active site. Here, the authors quantify the number and turnover frequency of the active sites by reversibly blocking those sites with nitrite (NO2¯).
url https://doi.org/10.1038/ncomms13285
work_keys_str_mv AT danielmalko insituelectrochemicalquantificationofactivesitesinfencnonpreciousmetalcatalysts
AT anthonykucernak insituelectrochemicalquantificationofactivesitesinfencnonpreciousmetalcatalysts
AT thiagolopes insituelectrochemicalquantificationofactivesitesinfencnonpreciousmetalcatalysts
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