Advanced Materials,
Год журнала:
2022,
Номер
35(7)
Опубликована: Ноя. 19, 2022
NiOOH
is
considered
as
the
most
active
intermediate
during
electrochemical
oxidation
reaction,
however,
it
hard
to
directly
synthesize
due
high
energy.
Herein,
theoretical
calculations
predict
that
α-FeOOH
enables
a
decline
in
formation
energy
and
an
improvement
stabilization
of
NiFe-based
layered
double
hydroxide
(LDH).
Inspiringly,
composite
composed
LDH
well-designed
successfully
fabricated
hydrothermal
treatment
by
adding
extra
Fe3+
resource,
stable
obtained
following
electro-oxidation
method.
Benefiting
from
strong
electron-capturing
capability
α-FeOOH,
efficiently
promotes
charge
redistribution
around
Ni/Fe
sites
activates
Ni
atoms
LDH,
verified
X-ray
photoelectron
spectra
(XPS)
absorption
(XAS).
The
d-band
center
optimized
balances
desorption
energy,
thus
Gibbs
free
barrier
lowered
dramatically
toward
oxygen
evolution
reaction
(OER)
urea
(UOR),
finally
showing
outstanding
overpotential
195
mV
potential
1.35
V
at
10
mA
cm-2
,
respectively.
This
study
provides
novel
strategy
construct
highly
efficient
catalysts
via
introduction
new
phase
for
complex
multiple-electron
reactions.
Advanced Materials,
Год журнала:
2021,
Номер
33(31)
Опубликована: Июнь 12, 2021
Abstract
Hydrogen
economy
has
emerged
as
a
very
promising
alternative
to
the
current
hydrocarbon
economy,
which
involves
process
of
harvesting
renewable
energy
split
water
into
hydrogen
and
oxygen
then
further
utilization
clean
fuel.
The
production
by
electrolysis
is
an
essential
prerequisite
with
zero
carbon
emission.
Among
various
technologies,
alkaline
splitting
been
commercialized
for
more
than
100
years,
representing
most
mature
economic
technology.
Here,
historic
development
overviewed,
several
critical
electrochemical
parameters
are
discussed.
After
that,
advanced
nonprecious
metal
electrocatalysts
that
recently
negotiating
evolution
reaction
(OER)
(HER)
discussed,
including
transition
oxides,
(oxy)hydroxides,
chalcogenides,
phosphides,
nitrides
OER,
well
alloys,
carbides
HER.
In
this
section,
particular
attention
paid
catalyst
synthesis,
activity
stability
challenges,
performance
improvement,
industry‐relevant
developments.
Some
recent
works
about
scaled‐up
novel
electrode
designs,
seawater
also
spotlighted.
Finally,
outlook
on
future
challenges
opportunities
offered,
potential
directions
speculated.
Chemical Society Reviews,
Год журнала:
2022,
Номер
51(11), С. 4583 - 4762
Опубликована: Янв. 1, 2022
Replacing
fossil
fuels
with
energy
sources
and
carriers
that
are
sustainable,
environmentally
benign,
affordable
is
amongst
the
most
pressing
challenges
for
future
socio-economic
development.
Chemical Society Reviews,
Год журнала:
2021,
Номер
50(15), С. 8428 - 8469
Опубликована: Янв. 1, 2021
The
recent
progress
in
activating
surface
reconstruction
by
integrating
advanced
characterizations
with
theoretical
calculations
for
high-efficiency
oxygen
evolution
reaction
is
reviewed.
Advanced Energy Materials,
Год журнала:
2019,
Номер
9(17)
Опубликована: Март 3, 2019
Abstract
The
oxygen
evolution
reaction
(OER)
has
aroused
extensive
interest
from
materials
scientists
in
the
past
decade
by
virtue
of
its
great
significance
energy
storage/conversion
systems
such
as
water
splitting,
rechargeable
metal–air
batteries,
carbon
dioxide
(CO
2
)
reduction,
and
fuel
cells.
Among
all
capable
catalyzing
OER,
layered
double
hydroxides
(LDHs)
stand
out
one
most
effective
electrocatalysts
owing
to
their
compositional
structural
flexibility
well
tenability
simplicity
preparation
process.
For
this
reason,
numerous
efforts
have
been
dedicated
adjusting
structure,
forming
well‐defined
morphology,
developing
methods
LDHs
promote
electrocatalytic
performance.
In
article,
recent
advances
rational
design
LDH‐based
toward
OER
are
summarized.
Specifically,
various
tactics
for
synthetic
methods,
composition
regulations
LDHs,
further
highlighted,
followed
a
discussion
on
influential
factors
Finally,
remaining
challenges
investigate
improve
ability
LDH
stated
indicate
possible
future
development
LDHs.
Chemical Society Reviews,
Год журнала:
2020,
Номер
49(24), С. 9154 - 9196
Опубликована: Янв. 1, 2020
Advances
of
non-precious-metal
catalysts
for
alkaline
water
electrolysis
are
reviewed,
highlighting
operando
techniques
and
theoretical
calculations
in
their
development.
Nature Communications,
Год журнала:
2019,
Номер
10(1)
Опубликована: Авг. 29, 2019
Abstract
Herein,
ruthenium
(Ru)
and
iridium
(Ir)
are
introduced
to
tailor
the
atomic
electronic
structure
of
self-supported
nickel-vanadium
(NiV)
layered
double
hydroxide
accelerate
water
splitting
kinetics,
origin
high
hydrogen
evolution
reaction
(HER)
oxygen
(OER)
activities
analyzed
at
level.
X-ray
photoelectron
spectroscopy
absorption
near-edge
studies
reveal
synergistic
interactions
among
Ni,
V,
Ru
cations.
Raman
spectra
Fourier
wavelet
transform
analyses
extended
fine
indicate
modulated
local
coordination
environments
around
Ni
V
cations,
existence
vacancies.
The
Debye–Waller
factor
suggests
a
severely
distorted
octahedral
environment
caused
by
incorporation
Ir.
Theoretical
calculations
further
confirm
that
or
Ir
doping
could
optimize
adsorption
energy
intermediates
in
Volmer
Heyrovsky
steps
for
HER
whole
kinetic
process
OER.
ACS Catalysis,
Год журнала:
2020,
Номер
10(7), С. 4019 - 4047
Опубликована: Фев. 26, 2020
Electrocatalytic
oxygen
evolution
reaction
(OER)
is
a
core
responsible
for
converting
renewable
electricity
into
storable
fuels;
yet,
it
kinetically
challenging,
because
of
the
complex
proton-coupled
multielectron
transfer
process.
Transition-metal-based
electrocatalysts,
which
provide
possibility
realization
low-cost,
high-activity,
and
stable
OER
in
alkaline
solution,
therefore
have
attracted
significant
research
interest
recent
years.
A
fundamental
understanding
composition–structure–activity
relationships
these
electrocatalysts
essential
to
guide
design
practical
industrial
applications.
With
more
advanced
ex
situ
techniques
determine
active
sites,
there
has
been
increasing
evidence
revealing
critical
role
Fe
high
performance
Fe-containing
transition
metal-based
electrocatalysts.
Here,
we
present
review
progress
OER,
highlighting
enhancing
activity.
We
outline
historical
development
summarize
conflicting
viewpoints
on
catalytic
offer
guidelines
rigorous
identification.
The
synthesis
major
challenges
improving
intrinsic
activity
stability
are
discussed.
Finally,
perspective
regarding
emerging
issues
yet
be
explored
developing
applications
also
provided.
