ACS Omega,
Год журнала:
2024,
Номер
9(6), С. 6128 - 6146
Опубликована: Янв. 31, 2024
Generation
of
hydrogen
is
one
the
most
promising
routes
to
harvest
solar
energy
for
its
sustainable
utilization.
Among
different
routes,
photoelectrochemical
(PEC)
process
split
water
using
light
produce
green
method
generate
hydrogen.
The
sluggish
kinetics
through
complicated
pathways
makes
oxygen
evolution
reaction
rate
limiting
step
overall
splitting
process.
Therefore,
development
an
efficient
photoanode
oxidation
challenging
in
PEC
low
conversion
efficiency
arises
from
slow
surface
kinetics,
poor
hole
diffusion,
and
fast
charge
recombination
processes.
There
have
been
strategies
improve
catalytic
performances
removal
such
detrimental
effects.
generation
engineered
surfaces
important
recently
adopted
enhancement
efficiencies.
present
review
has
focused
on
discussion
crystal
facet
engineering,
protective
layer,
passivation
atomic
layer
deposition
(ALD)
technique,
cocatalyst
modified
enhance
efficiency.
Some
parameters
defining
catalyst
performance
are
also
discussed
at
beginning
review.
Energy & Fuels,
Год журнала:
2024,
Номер
38(9), С. 7637 - 7664
Опубликована: Апрель 12, 2024
In
recent
decades,
a
great
interest
in
photocatalytic
water
splitting
has
been
due
to
the
importance
of
sunlight
hydrogen
production
as
renewable
energy
source
reduce
global
warming
effects.
The
applications
metal
sulfide
semiconductors
photocatalysts,
chalcogenide
compounds,
with
advantages
wide
range
for
light
harvesting
and
tunable
bandgap,
may
be
restricted
by
limited
active
sites,
poor
conductivity,
photo
corrosion,
charge
recombination.
sulfur
vacancy
(SV)
effectively
addresses
these
issues
generates
H2
O2
attaining
adequate
water-splitting
because
improved
optoelectronic
features.
This
review
article
aims
comprehensively
highlight
synergistic
roles
SV
sulfides
amended
overall
activity.
SV-modulated
sulfides'
features
are
deliberated,
followed
different
advanced
synthetic
techniques
effectual
defect
generation.
specific
aspects
refining
optical
range,
dynamics
carrier,
photoinduced
surface
chemical
reactions
deeply
described
applications.
Finally,
summarized
vouchsafing
outlooks
opportunities
confronting
S-vacancy
engineered
sulfides-based
photocatalysts
elucidated.
It
would
expected
hoped
that
this
will
help
researchers
design/fabricate
better
sulfide-based
systems.
Sustainable materials and technologies,
Год журнала:
2024,
Номер
40, С. e00972 - e00972
Опубликована: Май 13, 2024
As
the
commercialisation
of
two
contrasting
solar-powered
water
splitting
devices
with
lower
TRLs
proton
exchange
membrane
(PEM)
electrolyser
systems
and
photoelectrochemical
(PEC)
gains
momentum,
path
towards
a
sustainable
H2
economy
is
taking
shape.
Ongoing
pilot
projects
demonstration
plants
are
proving
feasibility
potential
these
technologies
in
real-world
applications.
However,
to
ensure
their
success,
we
must
confront
critical
challenges
cost
reduction
efficiency
enhancement,
making
green
economically
competitive
traditional
production
methods.
To
achieve
this,
collaborative
effort
among
academia,
industry,
policymakers
paramount.
This
comprehensive
review
begins
by
examining
electrolysis
methods,
focusing
on
through
electrochemical
splitting.
It
delves
into
crucial
components
advancements
PEM
systems,
addressing
related
catalysts,
membranes,
gas
diffusion
layers,
bipolar
plates.
The
also
explores
solar-driven
PEC
splitting,
emphasizing
significance
efficient
photoelectrodes
reactor
design.
Additionally,
it
discusses
integration
photovoltaic
cells
or
for
higher
yield.
Commercialisation
underway
this
endeavour
necessitates
approach,
active
involvement
from
policymakers.
collective
not
only
propels
us
greener
more
energy
solutions
but
represents
transformative
step
global
journey
environmentally
conscious
economy.
Energy & Fuels,
Год журнала:
2022,
Номер
36(17), С. 9932 - 9949
Опубликована: Авг. 15, 2022
Photoelectrochemical
(PEC)
water
splitting
has
been
considered
as
a
promising
technology
to
produce
hydrogen
clean
energy,
and
the
electrode
material
is
one
of
main
reasons
restricting
its
development.
Bismuth
vanadate
(BiVO4)
photoanode
for
PEC
oxidation
with
advantages
low
cost,
visible
light
absorption,
suitable
band
edge
location.
Since
BiVO4
was
reported,
tremendous
efforts
have
used
improve
performance,
significant
achievements
made.
This
minireview
first
briefly
introduces
theory
basic
properties
then
summarizes
effects
absorption
efficiency,
charge
separation
transfer
stability
on
performance
BiVO4-based
photoanodes.
Finally,
challenges
prospects
future
research
photoanodes
are
proposed
solar
energy
production.
ACS Applied Materials & Interfaces,
Год журнала:
2022,
Номер
14(23), С. 26642 - 26652
Опубликована: Май 31, 2022
Slow
water
oxidation
kinetics
and
poor
charge
transport
restrict
the
development
of
efficient
BiVO4
photoanodes
for
photoelectrochemical
(PEC)
splitting.
Oxygen
vacancy
as
an
effective
strategy
can
significantly
enhance
improve
conductivity
in
semiconductor
photoanodes.
Herein,
we
obtained
with
appropriate
oxygen
by
treating
them
hypophosphite,
which
improved
PEC
performance.
The
synthesized
photoanode
exhibits
a
remarkable
photocurrent
density
3.37
mA/cm2
at
1.23
V
vs
reversible
hydrogen
electrode
excellent
stability.
Interestingly,
performance
improvement
mainly
originates
from
rather
than
P
doping.
Our
study
provides
insights
understanding
role
splitting
strategies
designing
more
photoelectrodes.
Journal of Materials Chemistry A,
Год журнала:
2022,
Номер
10(42), С. 22561 - 22570
Опубликована: Янв. 1, 2022
In
this
work,
the
surface
band
edge
of
BiVO
4
photoanode
is
modulated
by
an
in
situ
gas-phase
cation
exchange
method,
which
some
Bi
atoms
on
are
replaced
V
to
form
a
V-rich
surface.
