Citation

BibTex format

@article{Malko:2016:10.1038/ncomms13285,
author = {Malko, D and Kucernak, A and Lopes, T},
doi = {10.1038/ncomms13285},
journal = {Nature Communications},
pages = {1--7},
title = {In-situ electrochemical quantification of active sites in Fe-N/C non-precious metal catalysts},
url = {http://dx.doi.org/10.1038/ncomms13285},
volume = {7},
year = {2016}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - The economic viability of low temperature fuel cells as clean energy devices is enhanced by the development of inexpensive oxygen reduction reaction catalysts. Heat treated iron and nitrogen containing carbon based materials (Fe–N/C) have shown potential to replace expensive precious metals. Although significant improvements have recently been made, their activity and durability is still unsatisfactory. The further development and a rational design of these materials has stalled due to the lack of an in situ methodology to easily probe and quantify the active site. Here we demonstrate a protocol that allows the quantification of active centres, which operate under acidic conditions, by means of nitrite adsorption followed by reductive stripping, and show direct correlation to the catalytic activity. The method is demonstrated for two differently prepared materials. This approach may allow researchers to easily assess the active site density and turnover frequency of Fe–N/C catalysts.
AU - Malko,D
AU - Kucernak,A
AU - Lopes,T
DO - 10.1038/ncomms13285
EP - 7
PY - 2016///
SN - 2041-1723
SP - 1
TI - In-situ electrochemical quantification of active sites in Fe-N/C non-precious metal catalysts
T2 - Nature Communications
UR - http://dx.doi.org/10.1038/ncomms13285
UR - https://www.nature.com/articles/ncomms13285
UR - http://hdl.handle.net/10044/1/39810
VL - 7
ER -

Contact Details

Prof. Anthony Kucernak

G22B
Molecular Sciences Research Hub (MSRH)
Imperial College London
White City Campus
London
W12 0BZ
United Kingdom

Phone: +44 (0)20 7594 5831
Fax: +44 (0)20 7594 5804
Email: anthony@imperial.ac.uk