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@ARTICLE{Wilke:1037407,
author = {Wilke, Vincent and Rivera, Marco and Morawietz, Tobias and
Sata, Noriko and Mues, Lukas and Hegelheimer, Manuel and
Maljusch, Artjom and Borowski, Patrick and Schmid, Günter
and Thum, Chen Yie and Klingenhof, Malte and Strasser, Peter
and Karl, André and Basak, Shibabrata and Poc, Jean-Pierre
and Eichel, Rüdiger-A. and Gago, Aldo Saul and Friedrich,
Kaspar Andreas},
title = {{N}ovel {A}tmospherically {P}lasma {S}prayed {M}icro
{P}orous {L}ayer for {A}nion {E}xchange {M}embrane {W}ater
{E}lectrolysis {O}perating {W}ith {S}upporting
{E}lectrolyte},
journal = {Electrochemical science advances},
volume = {5},
number = {3},
issn = {2698-5977},
address = {Weinheim},
publisher = {Wiley-VCH Verlag GmbH $\&$ Co KGaA},
reportid = {FZJ-2025-00711},
pages = {e202400036},
year = {2025},
abstract = {Anion exchange membrane water electrolysis (AEMWE) is one
of the most promising candidates for green hydrogen
productionneeded for the de-fossilization of the global
economy. As AEMWE can operate at high efficiency without
expensive PlatinumGroup Metal (PGM) catalysts or titanium
cell components, required in state-of-the-art proton
exchange membrane electrolysis(PEMWE), AEMWE has the
potential to become a cheaper alternative in large-scale
production of green hydrogen. In AEMWE,the porous transport
layer and/or micro porous layer (PTL/MPL) has to balance
several important tasks. It is responsible formanaging
transport of electrolyte and/or liquid water to the catalyst
layers (CLs), transport of evolving gas bubbles away from
theCLs and establishing thermal and electrical connection
between the CLs and bipolar plates (BPPs). Furthermore,
especially incase the CL is directly deposited onto the MPL,
forming a catalyst-coated substrate (CCS), the MPL surface
properties significantlyimpact CL stability. Thus, the MPL
is one of the key performance-defining components in AEMWE.
In this study, we employed theflexible and easily upscaled
technique of atmospheric plasma spraying (APS) to deposit
spherical nickel coated graphite directly ona low-cost mesh
PTL. Followed by oxidative carbon removal, a nickel-based
MPL with superior structural parameters comparedto a
state-of-art nickel felt MPL was produced. Due to a higher
activity of the nickel APS-MPL itself, as well as improved
catalystutilization, a reduction in cell voltage of 63 mV at
2 A cm−2 was achieved in an AEMWE operating with 1 M KOH
electrolyte. Thisimprovement was enabled by the high
internal surface area and the unique pore structure of the
APS-MPL with a broad pore sizedistribution as well as the
finely structured surface providing a large contacting area
to the CLs.},
cin = {IET-1},
ddc = {540},
cid = {I:(DE-Juel1)IET-1-20110218},
pnm = {1231 - Electrochemistry for Hydrogen (POF4-123) /
AEM-Direkt - $H2Giga_NG5_AEM-Direkt$ - Direktbeschichtung
von anionenleitenden Membranen für großskalige
Wasserelektrolyseure (BMBF-03HY130F)},
pid = {G:(DE-HGF)POF4-1231 / G:(DE-Juel1)BMBF-03HY130F},
typ = {PUB:(DE-HGF)16},
UT = {WOS:001379927400001},
doi = {10.1002/elsa.202400036},
url = {https://juser.fz-juelich.de/record/1037407},
}