Citation

BibTex format

@article{Jackson:2020:10.1016/j.apcatb.2020.118734,
author = {Jackson, C and Raymakers, LFJM and Mulder, MJJ and Kucernak, ARJ},
doi = {10.1016/j.apcatb.2020.118734},
journal = {Applied Catalysis B: Environmental},
pages = {1--12},
title = {Assessing electrocatalyst hydrogen activity and CO tolerance: comparison of performance obtained using the high mass transport ‘floating electrode’ technique and in electrochemical hydrogen pumps},
url = {http://dx.doi.org/10.1016/j.apcatb.2020.118734},
volume = {268},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Current ex-situ electrochemical characterisation techniques for measuring the hydrogen reaction are insufficient to effectively characterise catalytic behaviour under CO containing environments. We show the high mass transport, floating electrode technique offers a solution as it adequately describes hydrogen oxidation (HOR) and evolution over a wide potential range, as needed for various electrochemical systems. The peak HOR mass activities measured on the floating electrode were 68–93 A.mgmetal-1 - significantly higher than achieved in an experimental setup of an electrochemical hydrogen pump (EHP, 6–12 A.mgmetal−1). This implies that the EHPs operate with a significant mass transport limitation. Additionally, poison tolerances of catalysts using low concentrations of 20ppm CO produced transient responses over ca. 500s which correctly followed the CO tolerances determined from EHPs (PtRu/C>Pt/C>PtNi/C). A model of the kinetic transient responses on the floating electrode is provided which aids in describing the catalytic behaviour in poisoned environments.
AU  - Jackson,C
AU  - Raymakers,LFJM
AU  - Mulder,MJJ
AU  - Kucernak,ARJ
DO  - 10.1016/j.apcatb.2020.118734
EP  - 12
PY  - 2020///
SN  - 0926-3373
SP  - 1
TI  - Assessing electrocatalyst hydrogen activity and CO tolerance: comparison of performance obtained using the high mass transport ‘floating electrode’ technique and in electrochemical hydrogen pumps
T2  - Applied Catalysis B: Environmental
UR  - http://dx.doi.org/10.1016/j.apcatb.2020.118734
UR  - https://www.sciencedirect.com/science/article/pii/S0926337320301491?via%3Dihub
UR  - http://hdl.handle.net/10044/1/76919
VL  - 268
ER  -
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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