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@PHDTHESIS{Jiang:917469,
author = {Jiang, Wulyu},
title = {{N}i{F}e {L}ayered {D}ouble {H}ydroxide {C}atalysts for
{O}xygen {E}volution {R}eaction in {A}lkaline {W}ater
{E}lectrolysis},
volume = {590},
school = {RWTH Aachen University},
type = {Dissertation},
address = {Jülich},
publisher = {Forschungszentrum Jülich GmbH Zentralbibliothek Verlag},
reportid = {FZJ-2023-00682},
isbn = {978-3-95806-658-8},
series = {Schriften des Forschungszentrums Jülich Reihe Energie $\&$
Umwelt / Energy $\&$ Environment},
pages = {165},
year = {2022},
note = {Dissertation, RWTH Aachen University, 2022},
abstract = {Efficient and durable oxygen evolution reaction (OER)
catalysts for alkaline water electrolysis are highly
required for future energy storage and energy conversion
devices. However, objective evaluation and fair comparison
of different catalysts remain a challenge due to
differencesin OER measurements. The evaluation criteria and
the test protocol for the OER were investigated to compare
the activity and stability of the electrocatalysts in the
rotating disk electrode, and a standardized testing protocol
was determined. In the past decades, significant progress
has been made in improving the activity and durability of
catalysts by developing new materials. In particular, NiFe
layered double hydroxides (LDH) electrocatalysts have been
developed. Here, we synthesized NiFe LDH with tunable Ni/Fe
composition, which exhibits corresponding
dependentmorphology, layer structure, and chemical states.
The Ni3Fe LDH, resulting from the optimized local chemical
environment with more oxygen coordination and ordered atomic
structure, exhibits superior OER activity than most reported
NiFe LDHs on both half cell and singlecell tests. In situ
Raman spectra indicate the active species Ni(Fe)OOH at OER
conditions and the dynamic phase transition during the
cycling process. Different strategies have been applied to
further modulate the structure and improve the catalytical
performance of NiFe LDHs. Theintroduction of formamide and
permanganate ions into the interlayer could modify the layer
structure and enhance the stability to some extent, while
hydrothermal treatment can increase the crystallinity and
form well defined nanocrystal of NiFe LDH and other
NiFe-based catalysts},
cin = {IEK-14},
cid = {I:(DE-Juel1)IEK-14-20191129},
pnm = {1231 - Electrochemistry for Hydrogen (POF4-123)},
pid = {G:(DE-HGF)POF4-1231},
typ = {PUB:(DE-HGF)3 / PUB:(DE-HGF)11},
urn = {urn:nbn:de:0001-2023013123},
url = {https://juser.fz-juelich.de/record/917469},
}