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@ARTICLE{Flegler:282893,
author = {Flegler, Andreas and Hartmann, Sarah and Weinrich, Henning
and Kapuschinski, Martina and Settelein, Jochen and
Lorrmann, Henning and Sextl, Gerhard},
title = {{M}anganese {O}xide {C}oated {C}arbon {M}aterials as
{H}ybrid {C}atalysts for the {A}pplication in {P}rimary
{A}queous {M}etal-{A}ir {B}atteries},
journal = {C $\–$ journal of carbon research},
volume = {2},
number = {1},
issn = {2313-0105},
address = {Basel},
publisher = {MDPI},
reportid = {FZJ-2016-01638},
pages = {4 -},
year = {2016},
note = {Missing Journal: C (C) = 2311-5629 (import from CrossRef)},
abstract = {One of the major challenges of metal-air batteries is the
impeded oxygen reduction reaction (ORR) during discharge
occurring at the gas diffusion electrode (GDE) of the
battery. Due to the impeded ORR, high overpotentials emerge
and result in a loss of energy efficiency. In order to
improve the latter, suitable catalysts have to be employed.
Transition metal oxides like manganese oxides (e.g., MnO2,
Mn2O3, Mn3O4, Mn5O8, MnOOH) [1,2] are known as good and
inexpensive materials for the ORR in alkaline media. A
drawback of manganese oxide catalysts is the poor electrical
conductivity. Hence, the approach presented in this work
aims to enhance the catalytic activity of Mn3O4 and
γ–MnO2 by the incorporation of conductive carbon material
into the pure manganese oxide. The resulting hybrid
catalysts are prepared either by impregnation of Super C 65,
Vulcan XC 72, and Kuraray YP 50F via a sol-gel technique
employing a MnO2 precursor sol or by direct precipitation of
Mn3O4 or γ–MnO2 particles in the presence of the carbon
materials mentioned above. Investigations by rotating disc
electrode (RDE) show a noticeably higher catalytic activity
of the hybrid catalysts than for the pure materials. For
verification of the results measured by RDE, screen printed
GDEs are prepared and tested in Zn-air full cells.},
cin = {IEK-9},
ddc = {570},
cid = {I:(DE-Juel1)IEK-9-20110218},
pnm = {131 - Electrochemical Storage (POF3-131) / HITEC -
Helmholtz Interdisciplinary Doctoral Training in Energy and
Climate Research (HITEC) (HITEC-20170406)},
pid = {G:(DE-HGF)POF3-131 / G:(DE-Juel1)HITEC-20170406},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000485080500004},
doi = {10.3390/c2010004},
url = {https://juser.fz-juelich.de/record/282893},
}