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@ARTICLE{Jiang:910343,
author = {Jiang, Wulyu and Faid, Alaa Y. and Gomes, Bruna Ferreira
and Galkina, Irina and Xia, Lu and Lobo, Carlos Manuel Silva
and Desmau, Morgane and Borowski, Patrick and Hartmann,
Heinrich and Maljusch, Artjom and Besmehn, Astrid and Roth,
Christina and Sunde, Svein and Lehnert, Werner and Shviro,
Meital},
title = {{C}omposition‐{D}ependent {M}orphology, {S}tructure, and
{C}atalytical {P}erformance of {N}ickel–{I}ron {L}ayered
{D}ouble {H}ydroxide as {H}ighly‐{E}fficient and {S}table
{A}node {C}atalyst in {A}nion {E}xchange {M}embrane {W}ater
{E}lectrolysis},
journal = {Advanced functional materials},
volume = {32},
number = {38},
issn = {1057-9257},
address = {Weinheim},
publisher = {Wiley-VCH},
reportid = {FZJ-2022-03762},
pages = {2203520 -},
year = {2022},
abstract = {Water splitting is an environmentally friendly strategy to
produce hydrogen but is limited by the oxygen evolution
reaction (OER). Therefore, there is an urgent need to
develop highly efficient electrocatalysts. Here, NiFe
layered double hydroxides (NiFe LDH) with tunable Ni/Fe
composition exhibit corresponding dependent morphology,
layered structure, and chemical states, leading to higher
activity and better stability than that of conventional NiFe
LDH-based catalysts. The characterization data show that the
low overpotentials (249 mV at 10 mA cm–2), ultrasmall
Tafel slopes (24 mV dec–1), and high current densities of
Ni3Fe LDH result from the larger fraction of trivalent Fe3+
and the optimized local chemical environment with more
oxygen coordination and ordered atomic structure for the
metal site. Owing to the active intermediate species,
Ni(Fe)OOH, under OER conditions and a reversible dynamic
phase transition during the cycling process, the Ni3Fe LDH
achieves a high current density of over 2 A cm–2 at 2.0 V,
and durability of 400 h at 1 A cm–2 in a single cell test.
This work provides insights into the relationship between
the composition, electronic structure of the layer, and
electrocatalytic performance, and offers a scalable and
efficient strategy for developing promising catalysts to
support the development of the future hydrogen economy.},
cin = {IEK-14 / ZEA-3},
ddc = {530},
cid = {I:(DE-Juel1)IEK-14-20191129 / I:(DE-Juel1)ZEA-3-20090406},
pnm = {1231 - Electrochemistry for Hydrogen (POF4-123)},
pid = {G:(DE-HGF)POF4-1231},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000823996200001},
doi = {10.1002/adfm.202203520},
url = {https://juser.fz-juelich.de/record/910343},
}