Advanced Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 13, 2024
Designing
palladium-based
formic
acid
oxidation
reaction
(FAOR)
catalysts
to
achieve
significant
breakthroughs
in
catalytic
activity,
pathway
selectivity,
and
toxicity
resistance
is
both
urgent
challenging.
Here,
these
challenges
are
addressed
by
pioneering
a
novel
catalyst
design
that
incorporates
topological
chemical
disorder,
developing
new
class
of
PdCuLaYMnW
high-entropy
amorphous
alloys
with
porous
network
(Net-Pd-HEAA)
as
highly
active,
selective,
stable
FAOR
electrocatalyst.
This
Net-Pd-HEAA
demonstrates
record-breaking
performance,
achieving
the
mass
specific
activities
5.94
A
mg
Advanced Science,
Journal Year:
2024,
Volume and Issue:
11(21)
Published: March 19, 2024
Abstract
The
generation
of
green
hydrogen
by
water
splitting
is
identified
as
a
key
strategic
energy
technology,
and
proton
exchange
membrane
electrolysis
(PEMWE)
one
the
desirable
technologies
for
converting
renewable
sources
into
hydrogen.
However,
harsh
anode
environment
PEMWE
oxygen
evolution
reaction
(OER)
involving
four‐electron
transfer
result
in
large
overpotential,
which
limits
overall
efficiency
production,
thus
efficient
electrocatalysts
are
needed
to
overcome
high
overpotential
slow
kinetic
process.
In
recent
years,
noble
metal‐based
(e.g.,
Ru/Ir‐based
metal/oxide
electrocatalysts)
have
received
much
attention
due
their
unique
catalytic
properties,
already
become
dominant
acidic
OER
process
applied
commercial
devices.
these
still
face
thorny
problem
conflicting
performance
cost.
this
review,
first,
metal
briefly
classified
according
forms
existence,
mechanisms
outlined.
Then,
focus
on
summarizing
improvement
strategies
with
respect
activity
stability
over
years.
Finally,
challenges
development
prospects
discussed.
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: July 23, 2024
Abstract
It
is
vital
to
explore
effective
ways
for
prolonging
electrode
lifespans
under
harsh
electrolysis
conditions,
such
as
high
current
densities,
acid
environment,
and
impure
water
source.
Here
we
report
alternating
approaches
that
realize
promptly
regularly
repair/maintenance
concurrent
bubble
evolution.
Electrode
are
improved
by
co-action
of
Fe
group
elemental
ions
alkali
metal
cations,
especially
a
unique
Co
2+
-Na
+
combo.
A
commercial
Ni
foam
sustains
ampere-level
densities
alternatingly
during
continuous
93.8
h
in
an
acidic
solution,
whereas
completely
dissolved
~2
conventional
conditions.
The
work
not
only
explores
electrolysis-based
system,
cation-based
catalytic
systems,
electrodeposition
techniques,
beyond,
but
demonstrates
the
possibility
prolonged
repeated
deposition-dissolution
processes.
With
enough
adjustable
experimental
variables,
upper
improvement
limit
lifespan
would
be
high.
Nano Letters,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 16, 2025
Efficient
oxygen
evolution
reaction
(OER)
catalysts
with
fast
kinetics,
high
efficiency,
and
stability
are
essential
for
scalable
green
production
of
hydrogen.
The
rational
design
fabrication
play
a
decisive
role
in
their
catalytic
behavior.
This
work
presents
high-entropy
catalyst,
FeCoNiCuMo-O,
synthesized
via
carbothermal
shock.
Synergistic
optimization
the
adsorption
mechanism
(AEM)
lattice
(LOM)
was
realized
demonstrated
through
combination
situ
spectra/mass
spectrometry
chemical
probe
analysis
FeCoNiCuMo-O.
Furthermore,
robust
is
reinforced
by
inherent
properties
conferred
design.
catalyst
exhibits
outstanding
performance
metrics,
featuring
an
exceptionally
low
Tafel
slope
41
mV
dec–1,
overpotential
272
at
10
mA
cm–2,
commendable
endurance
(a
mere
2.2%
voltage
decline
after
240-h
continuous
chronopotentiometry
test
cm–2).
study
advances
development
efficient,
durable
OER
electrocatalysts
sustainable
hydrogen
production.
ACS Nano,
Journal Year:
2024,
Volume and Issue:
18(20), P. 12672 - 12706
Published: May 8, 2024
Since
their
introduction
in
2004,
high
entropy
alloys
(HEAs)
have
attracted
significant
attention
due
to
exceptional
mechanical
and
functional
properties.
Advances
our
understanding
of
atomic-scale
ordering
phase
formation
HEAs
facilitated
the
development
fabrication
techniques
for
synthesizing
nanostructured
HEAs.
These
materials
hold
immense
potential
applications
various
fields
including
automobile
industries,
aerospace
engineering,
microelectronics,
clean
energy,
where
they
serve
as
either
structural
or
materials.
In
this
comprehensive
Review,
we
conduct
an
in-depth
analysis
properties
HEAs,
with
a
particular
emphasis
on
roles
different
nanostructures
modulating
these
To
begin,
explore
intrinsic
extrinsic
factors
that
influence
stability
Subsequently,
delve
into
examination
electrocatalytic
exhibited
by
bulk
three-dimensional
(3D)
well
nanosized
form
zero-dimensional
(0D)
nanoparticles,
one-dimensional
(1D)
nanowires,
two-dimensional
(2D)
nanosheets.
Finally,
present
outlook
current
research
landscape,
highlighting
challenges
opportunities
associated
nanostructure
design
structure-property
relationships
Advanced Science,
Journal Year:
2024,
Volume and Issue:
11(38)
Published: Aug. 9, 2024
Abstract
Hydrogen,
a
clean
resource
with
high
energy
density,
is
one
of
the
most
promising
alternatives
to
fossil.
Proton
exchange
membrane
water
electrolyzers
are
beneficial
for
hydrogen
production
because
their
current
facile
operation,
and
gas
purity.
However,
large‐scale
application
electrochemical
splitting
acidic
electrolytes
severely
limited
by
sluggish
kinetics
anodic
reaction
inadequate
development
corrosion‐
highly
oxidation‐resistant
anode
catalysts.
Therefore,
catalysts
excellent
performance
long‐term
durability
must
be
developed
oxygen
evolution
reactions
(OER)
in
media.
This
review
comprehensively
outlines
three
commonly
employed
strategies,
namely,
defect,
phase,
structure
engineering,
address
challenges
within
OER,
while
also
identifying
existing
limitations.
Accordingly,
correlation
between
material
design
strategies
catalytic
discussed
terms
contribution
activity
stability.
In
addition,
various
nanostructures
that
can
effectively
enhance
catalyst
at
mesoscale
summarized
from
perspective
engineering
technology,
thus
providing
suitable
satisfy
industrial
requirements.
Finally,
future
outlook
area
OER
presented.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 30, 2024
Abstract
Nanoparticles
(NPs)
of
high
entropy
materials
(HEMs)
have
attracted
significant
attention
due
to
their
versatility
and
wide
range
applications.
HEM
NPs
can
be
synthesized
by
fragmenting
bulk
HEMs
or
disintegrating
recrystallizing
them.
Alternatively,
directly
producing
in
NP
form
from
atomic/ionic/molecular
precursors
presents
a
challenge.
A
widely
adopted
strategy
involves
thermodynamically
driving
formation
leveraging
the
entropic
contribution
but
incorporating
strategies
limit
growth
at
elevated
temperatures
used
for
maximizing
entropy.
second
approach
is
kinetically
drive
promoting
rapid
reactions
homogeneous
reactant
mixtures
using
highly
diluted
precursor
dissolutions.
Additionally,
experimental
evidence
suggests
that
enthalpy
plays
role
processes
moderate
temperatures,
with
energy
cost
generating
additional
surfaces
interfaces
nanoscale
stabilizing
phase.
This
review
critically
assesses
various
synthesis
developed
preparation,
highlighting
key
illustrative
examples
offering
insights
into
underlying
mechanisms.
Such
are
critical
fine‐tuning
conditions
achieve
specific
outcomes,
ultimately
enabling
effective
optimized
generations
these
advanced
both
current
emerging
applications
across
scientific
technological
fields.
