Nanomaterials,
Journal Year:
2024,
Volume and Issue:
14(23), P. 1914 - 1914
Published: Nov. 28, 2024
Solar-driven
hydrogen
generation
is
one
of
the
promising
technologies
developed
to
address
world’s
growing
energy
demand
in
an
sustainable
way.
While,
for
(otherwise
water
splitting),
photocatalytic,
photoelectrochemical,
and
PV-integrated
splitting
systems
employing
conventional
semiconductor
oxides
materials
their
electrodes
have
been
under
investigation
over
a
decade,
lead
(Pb)-
halide
perovskites
(HPs)
made
debut
2016.
Since
then,
exceptional
characteristics
these
materials,
such
as
tunable
optoelectronic
properties,
ease
processing,
high
absorption
coefficients,
long
diffusion
lengths,
positioned
them
highly
material
solar-driven
splitting.
Like
solar
photovoltaics,
field
also
dominated
by
Pb-HPs
with
ongoing
efforts
improve
stability
evolution/generation
rate
(HER).
Despite
this,
unveiling
potential
various
Pb-free
HP
compositions
photovoltaics
optoelectronics
researchers
were
inspired
explore
In
this
current
review,
we
outlined
fundamentals
splitting,
provided
summary
Pb
HPs
field,
associated
issues
are
presented.
Subsequently,
strategies
employed
improving
photocatalytic
and/or
electrochemical
activity
discussed
detail.
Finally,
review
presents
existing
future
lead-free
HPs,
which
show
enhancing
productivity
solar-to-hydrogen
conversion
technologies.
Energies,
Journal Year:
2025,
Volume and Issue:
18(2), P. 414 - 414
Published: Jan. 18, 2025
Apparent
kinetics
is
often
used
to
describe
a
variety
of
reactions
in
the
field
chemical
looping
and
solar
thermochemical
processes,
yet
rigorous
analytical
methodology
for
utilizing
such
has
been
lacking.
The
implementation
novel
approach
was
exemplified
ceria
cycle
producing
hydrogen,
specifically
H2O-driven
oxidation
step.
H2
production
rate
equation
derived,
rearranging
apparent
from
experimental
data
literature
into
more
suitable
form.
1D
model
integrates
heat
transfer,
fluid
dynamics,
redox
chemistry,
providing
description
directly
irradiated
receiver–reactor.
Model
robustness
ensured
through
oxygen
mass
balance
across
cycle,
comparison
against
shows
high
agreement.
can
be
useful
simulating
cycles
using
any
nonstoichiometric
oxide,
as
ceria-based
oxides
and,
most
importantly,
oxidation-limited
perovskites,
which
optimizing
step
terms
flow,
kinetics,
reaction
times
crucial.
proposed
applied
arbitrarily
complex
reactor
geometries.
inherently
local
nature
also
allows
spatial
distributions
material’s
conversion
utilization
obtained,
paving
way
optimization
strategies
reactor’s
design
operation.
Critical reviews in solid state and materials sciences/CRC critical reviews in solid state and materials sciences,
Journal Year:
2025,
Volume and Issue:
unknown, P. 1 - 29
IOP Conference Series Earth and Environmental Science,
Journal Year:
2025,
Volume and Issue:
1454(1), P. 012008 - 012008
Published: Feb. 1, 2025
Abstract
The
possibility
of
perovskite
materials
as
phase
change
(PCMs)
will
be
the
main
topic
this
brief
review.
In
recent
years,
there
has
been
a
great
deal
research
focused
on
perovskite-based
PCMs
in
development
energy
storage
materials.
Sol-gel
and
hydrothermal
synthesis
techniques
are
utilized
to
produce
high
crystallinity
homogenous
particle
size.
Some
special
properties
their
latent
heat
capacity,
good
thermal
stability,
capacity
switch
between
solid
liquid
phases
at
relatively
low
temperatures.
Due
its
properties,
is
an
excellent
option
for
applications,
particularly
solar
systems
energy-efficient
building.
