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@ARTICLE{Rincn:156425,
author = {Rincón, Rosalba A. and Ventosa, Edgar and Tietz, Frank and
Masa, Justus and Seisel, Sabine and Kuznetsov, Volodymyr and
Schuhmann, Wolfgang},
title = {{E}valuation of {P}erovskites as {E}lectrocatalysts for the
{O}xygen {E}volution {R}eaction},
journal = {ChemPhysChem},
volume = {15},
number = {13},
issn = {1439-4235},
address = {Weinheim},
publisher = {Wiley-VCH Verl.},
reportid = {FZJ-2014-05168},
pages = {2810 - 2816},
year = {2014},
abstract = {The oxygen evolution reaction (OER) is an enabling process
for technologies in the area of energy conversion and
storage, but its slow kinetics limits its efficiency. We
performed an electrochemical evaluation of 14 different
perovskites of variable composition and stoichiometry as OER
electrocatalysts in alkaline media. We particularly focused
on improved methods for a reliable comparison of catalyst
activity. From initial electrochemical results we selected
the most active samples for further optimization of
electrode preparation and testing. An inverted cell
configuration facilitated gas bubble detachment and thus
minimized blockage of the active surface area. We describe
parameters, such as the presence of specific cations,
stoichiometry, and conductivity, that are important for
obtaining electroactive perovskites for OER. Conductive
additives enhanced the current and decreased the apparent
overpotential of OER for one of the most active samples
(La0.58Sr0.4Fe0.8Co0.2O3).},
cin = {IEK-1},
ddc = {540},
cid = {I:(DE-Juel1)IEK-1-20101013},
pnm = {123 - Fuel Cells (POF2-123)},
pid = {G:(DE-HGF)POF2-123},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000341565600024},
pubmed = {pmid:25044985},
doi = {10.1002/cphc.201402137},
url = {https://juser.fz-juelich.de/record/156425},
}