SusMat,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 7, 2024
ABSTRACT
As
for
the
high
sustainable
solar
hydrogen
production
via
water
splitting,
transition
metal
doping
on
an
oxide
photoanode
in
photoelectrochemical
(PEC)
cells
has
been
recognized
as
effective
approach.
However,
conventional
thermal‐diffusion‐mediated
strategies
face
challenge
of
resolving
sluggish
catalytic
kinetics
oxygen
evolution
reaction
(OER)
and
its
practical
utilization
synthesis
films.
Herein,
we
introduce
facile
ultrafast
flame‐boosted
Mo
into
a
BiVO
4
(FL
MoBVO)
film
20
s
to
achieve
efficient
PEC
OER.
elements
low‐valence
state
(i.e.,
6−
δ
)
6+
are
successfully
doped
photoanode,
which
manipulate
energy
band
structure,
facilitating
downward
shift
edges
promoting
surface
kinetics.
Consequently,
Mo‐doping
results
superior
performance
mild
environment
with
neutral
electrolyte
without
introducing
any
other
additives
or
co‐catalysts,
where
photocurrent
density
at
1.23
V
RHE
under
1
sun
illumination
pH
7
is
outstandingly
enhanced,
over
9‐fold
higher
than
that
pristine
.
The
induces
significantly
enhanced
photoexcited
charge
transport
performances
simultaneously.
Our
report
provides
strategy
boosting
both
thermodynamic
kinetic
migration
properties
materials.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 30, 2024
Abstract
Photoelectrochemical
solar
to
hydrogen
production
is
a
promising
way
achieve
carbon
neutrality,
but
severe
charge
recombination
in
photoanodes
limits
the
conversion
efficiency.
Herein,
Au
nanoparticles
and
Co(OH)
x
co‐sensitized
bismuth
vanadate
(BiVO
4
)
construct
AuCo(OH)
/BiVO
photoanode
for
significantly
enhancing
performance
of
photoelectrochemical
water
splitting.
This
process
improves
bulk
carrier
separation
efficiency,
surface
kinetics
oxidation,
electron
density
BiVO
through
plasmon
resonance
(SPR)
oxygen
evolution
catalysts
effect.
Additionally,
enhancement
*O
*OOH
generation
accelerate
reaction
kinetics.
Consequently,
constructed
demonstrates
an
excellent
photocurrent
6.2
mA
cm
−2
at
1.23
V
versus
reversible
electrode
stable
continuous
output
within
42
h.
work
contributes
developing
high‐efficiency
high‐stability
H
2
SPR
effect
catalysts.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 24, 2024
Abstract
Hydrogen
peroxide
(H
2
O
)
is
a
high‐value
chemical
widely
used
in
electronics,
textiles,
paper
bleaching,
medical
disinfection,
and
wastewater
treatment.
Traditional
production
methods,
such
as
the
anthraquinone
oxidation
process
direct
synthesis,
require
high
energy
consumption,
involve
risks
from
toxic
substances
explosions.
Researchers
are
now
exploring
photochemical,
electrochemical,
photoelectrochemical
synthesis
methods
to
reduce
use
pollution.
This
review
focuses
on
2‐electron
oxygen
reduction
reaction
(2e
−
ORR)
for
electrochemical
of
H
2,
discusses
how
catalyst
active
sites
influence
adsorption.
Strategies
enhance
selectivity
by
regulating
these
presented.
Catalysts
strong
adsorption
initiate
reactions
weak
*OOH
promote
formation.
The
also
covers
advances
single‐atom
catalysts
(SACs),
multi‐metal‐based
catalysts,
highlights
non‐noble
metal
oxides,
especially
perovskite
their
versatile
structures
potential
2e
ORR.
localized
surface
plasmon
resonance
(LSPR)
effects
performance
discussed.
In
conclusion,
emphasis
placed
optimizing
through
theoretical
experimental
achieve
efficient
selective
production,
aiming
sustainable
commercial
applications.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 27, 2025
Photoelectrochemical
(PEC)
water
splitting
is
a
top
green
tech
for
renewable
energy,
turning
solar
power
into
storable
hydrogen.
The
efficiency
of
PEC
constrained
by
charge
separation
and
surface
reactions.
While
traditional
material
modifications
like
heterojunction
design
defect
regulation
have
enhanced
efficiency,
they
are
limited
properties.
ferroelectric
provides
novel
strategy
to
address
these
limitations
in
splitting.
Ferroelectric
materials,
with
their
spontaneous
polarization,
can
enhance
regulate
reactions
via
internal
electric
fields.
This
paper
summarizes
the
mechanism
polarization
its
role
PEC,
especially
how
promotes
bulk
It
also
reviews
research
progress
made
recent
years
regarding
enhancement
performance
through
polarization.
includes
applications
two
main
aspects:
separation,
which
involves
pure
ferroelectrics,
ferroelectric-semiconductor
heterojunctions,
ferroelectric-plasmonic
structures;
reactions,
cover
electronic
structure
modification,
pH
regulation,
nanostructures.
Studies
shown
that
significantly
improve
optimize
reaction
kinetics
regulating
interfacial
energy
band
structure.
Finally,
future
development
this
promising
field
prospected.
