Advanced Sustainable Systems,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 12, 2024
Abstract
Photoelectrochemical
(PEC)
technology
is
one
of
the
most
promising
methods
for
converting
solar
energy
into
valuable
fuels
and
chemicals.
Silicon
(Si),
a
narrow
band
gap
semiconductor
with
high
carrier
mobility,
serves
as
competitive
material
photoelectrodes.
This
review
outlines
research
progress
Si‐based
photoanodes
photocathodes
in
diverse
economically
beneficial
PEC
redox
reactions,
extending
beyond
water
splitting
to
include
alcohol
oxidation,
carbon
dioxide
reduction,
ammonia
synthesis,
organic
degradation,
more.
To
address
key
barriers
achieving
efficient
conversion
–
such
slow
charge
dynamics,
sluggish
reaction
kinetics,
instability
photoelectrodes
mechanisms
implementation
fabricating
stable
are
thoroughly
discussed.
Finally,
challenges
faced
advancing
commercialization
processes
explored.
Journal of the American Chemical Society,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 8, 2025
The
dual-site
synergistic
catalytic
mechanism
on
NiFeOOH
suggests
weak
adsorption
of
Ni
sites
and
strong
Fe
limited
its
activity
toward
alkaline
oxygen
evolution
reaction
(OER).
Large-scale
density
functional
theory
(DFT)
calculations
confirm
that
Co
doping
can
increase
adsorption,
while
the
metal
vacancy
reduce
adsorption.
combined
two
factors
further
modulate
atomic
environment
optimize
free
energy
oxygen-containing
intermediates,
thus
enhancing
OER
activity.
Accordingly,
we
used
Cr
vacancies
to
fabricate
an
amorphous
catalyst
VCr,Co-NiFeOOH.
It
provides
overpotential
239
mV
at
100
mA
cm–2
high
stability
over
500
h
with
a
∼98%
potential
retention.
resulting
water
electrolyzer
based
anion
exchange
membrane
(AEM)
exhibits
remarkable
performance
1
A
1.68
V
in
M
KOH.
XPS,
soft-XAS,
XANES
Bader
charge
analysis
results
reveal
regulation
local
microenvironment
valence
state
by
doping,
improving
sites.
alleviate
DFT
effect
redistribute
Ni/Fe
sites,
d-band
center
Fe,
endow
Ni–Fe
dual
barrier
rate-determining
step.
Chemical Society Reviews,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
This
review
systematically
provides
various
insights
into
the
pH
effect
on
hydrogen
electrocatalysis,
and
thus
providing
a
reference
for
future
development
of
electrocatalysis
based
these
insights.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 15, 2024
Abstract
Process
intensification
engineering
of
electrocatalysts
is
crucial
to
facilitate
electrocatalytic
reaction,
while
its
cross‐scale
modulation
great
challenge.
Herein,
the
spindle
CuO
supported
tungsten
single‐atom
catalysts
(W
SACs)
with
tunable
mesoscale
electric
field
and
atomic‐scale
coordination
structure
are
reported
toward
enhanced
electrochemical
hydrogen
evolution
process.
Finite
element
analysis
indicates
can
be
by
tailoring
tip
angle
configuration
from
74°
27°,
enhancing
production
rate
5
times.
Based
on
density
functional
theory
calculations,
regulation
also
triggers
increase
number
W–O,
which
increases
charge
transfer
downshifts
d‐band
center,
stabilizing
W
sites
optimizing
desorption
The
optimized
SA
/CuO‐27
exhibits
much
better
activity
(η
100
=
94
mV)
stability
(200
mA
cm
−2
for
120
h)
than
as‐prepared
/CuO‐56
/CuO‐74
analogues.
Impressively,
anion
exchange
membrane
electrolyzer
fabricated
presents
excellent
comparable
that
commercial
electrocatalysts,
delivers
an
ultra‐low
attenuation
0.085
h
−1
at
300
after
continuous
electrocatalysis
h.
This
work
inspires
design
high‐efficiency
metal
synthesis
via
process
engineering.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 25, 2025
Abstract
To
overcome
the
challenges
of
low
catalytic
activity
and
instability,
a
molecular
weight
engineering
strategy
coupled
with
oxidative
ammonolysis
is
developed
to
synthesize
CoRu‐based
alloy
catalysts
distinct
morphologies
properties
from
biorefinery
lignin.
This
approach
effectively
modulates
intrinsic
active
sites
exposes
unsaturated
nitrogen‐oxygen
structures,
thereby
tailoring
morphology
defect
structure
carbon
layers
in
catalysts.
The
as‐synthesized
CoRu
lignin
precursors
varying
weights
are
designated
as
CoRu@OALC‐EtOAC,
CoRu@OALC‐EtOH,
CoRu@OALC‐Residual.
featuring
defect‐rich
graphitic
carbon‐coated
structure,
exhibited
exceptional
overall
water‐splitting
performance
(1.48
V
at
10
mA
cm
−2
),
significantly
surpassing
Pt/C
||
Ru/C
(1.58
).
In
contrast,
CoRu@OALC‐Residual,
its
amorphous
demonstrated
remarkable
stability
(350
h
100
vastly
outperforming
(6
In‐situ
Raman
spectroscopy
DFT
calculations
revealed
that
adsorb
*
H
intermediates,
accelerating
process.
strong
adsorption
also
induces
layer
rearrangement,
leading
dissolution
oxidation
metal
particles.
provides
universal
method
for
biomass‐derived
catalysts,
establishing
direct
relationship
between
weight,
catalyst
morphology,
electrocatalytic
performance.
RSC Advances,
Journal Year:
2025,
Volume and Issue:
15(11), P. 8420 - 8429
Published: Jan. 1, 2025
This
study
systematically
explores
how
variations
in
linker
chemistry
affect
metal-active
site
distribution,
stability,
and
reaction
kinetics,
providing
a
deeper
understanding
of
structure/morphological-performance
relationships.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(48)
Published: July 16, 2024
Abstract
Strong
metal‐support
interaction
(SMSI)
between
transition
metal
nanoparticles
and
carbon
matrix
offers
significant
structure
advantages
due
to
the
ability
modulate
electronic
of
nanoparticles,
increase
density
active
sites,
improve
conductivity
catalysts.
Here,
ultrafine
metallic
molybdenum
compounds
(MoP,
Mo
2
C,
MoS
)
strongly
coupled
with
mesoporous
CMK‐5
are
synthesized.
The
confinement
growth
in
pores
produces
encapsulated
affording
facilitated
electron
transfer,
enhancing
HER
activity
induced
by
SMSI
effect.
hierarchical
nanostructure
strong
interactions
substrate
molybdenum‐based
allow
efficient
mass/electron
transport
improving
catalytic
hydrogen
evolution
reaction
(HER)
activity.
effective
exchange
species
support
is
studied
X‐ray
photoelectron
spectroscopy
(XPS)
measurement,
confirming
presence
resulting
MoP/CMK‐5
catalyst
exhibits
outstanding
performance
alkaline
(65
mV@10
mA
cm
−2
),
acidic
(123
simulated
seawater
electrolytes
(103
making
it
one
most
promising
catalysts
reported
for
HER.
This
work
provides
guidance
on
designing
high‐performance
electrocatalysts
enhancement
electrochemical
reaction.
Inorganic Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 10, 2025
The
interaction
between
electrocatalytic
active
centers
and
their
support
is
essential
to
the
performance,
which
could
regulate
electronic
structure
of
metal
but
requires
precise
design.
Herein,
we
report
on
covalent
grafting
graphene
quantum
dots
(GQDs)
stepped
TiO
