Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 6, 2025
Noble
metal
single
atoms
(NMSA)
offer
exceptional
atom
utilization
and
catalytic
activity
but
face
challenges
like
limited
stability,
low
atomic
loading,
complex
synthesis.
This
study
presents
an
innovative
entropy-driven
strategy
to
stabilize
Ru
(SA)
on
a
(CePrYZrHf)Ox
high-entropy
oxide
substrate
(Ruα%-HEO).
Due
their
defect-rich
structure
significant
lattice
distortion,
HEO
substrates
can
accommodate
more
SA
than
traditional
low-entropy
oxides
(LEO)
CeO2.
is
also
effective
for
achieving
high
loadings
of
other
NMSAs,
such
as
Pd
Pt.
Ru3%-HEO,
electrocatalyst
nitrate
reduction,
achieves
ammonia
yield
(5.79
mg
h-1
mgcat.
-1)
Faradaic
efficiency
(FE)
91.3%.
Density
functional
theory
(DFT)
calculations
reveal
that
Ru3%-HEO
exhibits
favorable
thermodynamics
with
lower
energy
barrier
the
rate-determining
step
first
hydrogenation
(*NO
+
H+
e⁻
→
*NOH)
stronger
intermediates
adsorption
compared
RuO2,
enhancing
its
efficiency.
As
cathode
material
in
zinc-nitrate
battery,
demonstrates
NH3
rate
(1.11
cm-2)
FE
value
(93.4%).
provides
efficient
produce
stable
high-loading
using
materials,
showcasing
broad
applicability
advanced
electrocatalysis.
Advanced Energy Materials,
Год журнала:
2024,
Номер
14(23)
Опубликована: Апрель 21, 2024
Abstract
Owing
to
the
presence
of
a
substantial
concentration
chlorine
in
seawater,
anode
still
faces
severe
corrosion,
especially
water
splitting
operated
at
high
current
densities.
Herein,
cost‐effective
and
scalable
NiFe
layered
double
hydroxides
with
carbonate
intercalation
(named
as
LDH_CO
3
2−
)
are
synthesized
utilizing
etching‐hydrolysis
ion
exchange
strategies
under
ambient
conditions.
Experimental
findings
demonstrate
that
shows
excellent
stability
500
1000
mA
cm
−2
for
h
alkaline
simulated
seawater.
Additionally,
two‐electrode
system
offers
great
densities
ranging
from
100
over
duration
400
This
remarkably
catalytic
can
be
ascribed
strategies.
The
strategy
leads
an
integrated
electrode
catalyst‐carrier,
enhancing
adhesion
between
them,
retarding
hence
divorce
catalysts
carrier.
Theoretical
calculations
suggest
weakens
adsorbability
on
hinders
coupling
metal
atoms
chlorine,
thereby
impeding
corrosion
caused
by
improving
stability.
More
importantly,
this
has
been
extended
preparation
other
intercalation.
Carbon Neutralization,
Год журнала:
2025,
Номер
4(1)
Опубликована: Янв. 1, 2025
ABSTRACT
Carbon‐based
nanomaterials
play
a
significant
role
in
the
field
of
electrochemistry
because
their
outstanding
electrical
conductivity,
chemical
and
thermal
resistance,
structural
flexibility,
so
on.
In
recent
years,
we
have
observed
rapid
rise
research
interest
high‐temperature
shock
(HTS)
method,
which
is
fast,
stable,
environmentally
friendly,
versatile.
The
HTS
method
offers
excellent
controllability
repeatability
while
tackling
challenges
limitations
traditional
preparation
methods,
providing
new
way
to
prepare
optimize
carbon‐based
for
electrochemical
applications.
During
synthesis,
reaction
driven
by
high
temperature
further
growth
obtained
nanoparticles
inhibited
heating
cooling
rates.
has
many
advantages,
including
controlled
carbon
vacancy
that
may
drive
phase
transformation,
precise
engineering
carbon,
other
defects
function
as
active
centers,
formation
preservation
metastable
owing
energy
cooling,
fine‐tuning
interaction
between
loaded
species
support
optimized
performance,
facile
doping
compounding
induce
synergy
different
constituents.
This
article
provides
comprehensive
review
various
prepared
applications
during
past
decade,
emphasizing
synthesis
principles
performance.
Studies
showcasing
merits
HTS‐derived
advancing
Lithium‐ion
batteries,
Lithium‐sulfur
Lithium‐air
water‐splitting
reaction,
oxygen
reduction
CO
2
nitrate
electrocatalytic
reactions,
fuel
cells
are
highlighted.
Finally,
prospects
recommended.
Journal of Materials Chemistry A,
Год журнала:
2024,
Номер
12(13), С. 7654 - 7662
Опубликована: Янв. 1, 2024
A
3D
porous
phosphorus
(P)-doped
Cu–Ni
alloy
are
constructed
through
a
one-step
electrodeposition
synthesis.
The
doped
P
promotes
the
hydrogenation
process
in
atomic
H*
path
and
effectively
accelerates
NRA
reaction
rate.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 1, 2024
Abstract
Electrochemical
nitrate
reduction
to
ammonia
(NRA)
is
a
promising
approach
for
alleviating
energy
crisis
and
water
pollution.
Current
NRA
catalysts
are
challenged
simultaneously
improve
the
rate
of
adsorption
desorption
processes
further
increase
total
activity
due
Brønsted−Evans−Polanyi
(BEP)
relationships.
Herein,
two‐step
Joule
heating
method
utilized
preparation
Ni
0.25
Cu
0.5
Sn
nanometallic
glass
containing
synergistic
catalytic
sites
enhance
processes.
Kelvin
probe
force
microscopy
reveals
pronounced
oscillatory
behavior
in
surface
potential
glass,
which
an
important
feature
site,
empirical
formula
proposed
quantitatively
characterize
its
characteristic.
In
situ
electrochemical
Raman
spectroscopy
indicates
promotion
nickel
tin
atoms
processes,
respectively.
DFT
calculations
demonstrated
that
presents
wide
range
distributions
favor
multisite
catalysis.
The
present
work
provides
new
ideas
design
understanding
highly
active
catalysts.
