Nature Communications,
Год журнала:
2022,
Номер
13(1)
Опубликована: Сен. 28, 2022
Efficient
water
vapor
splitting
opens
a
new
strategy
to
develop
scalable
and
corrosion-free
solar-energy-harvesting
systems.
This
study
demonstrates
highly
efficient
overall
under
feeding
using
Al-doped
SrTiO3
(SrTiO3:Al)-based
photocatalyst
decorated
homogeneously
with
nano-membrane
TiOx
or
TaOx
thin
layers
(<3
nm).
Here,
we
show
the
hygroscopic
nature
of
metal
(hydr)oxide
layer
provides
liquid
reaction
environment
vapor,
thus
achieving
an
AQY
54
±
4%,
which
is
comparable
reaction.
coated,
CoOOH/Rh
loaded
SrTiO3:Al
works
for
over
100
h,
high
pressure
(0.3
MPa),
no
problems
simulated
seawater
as
supply
source.
concept
innovative
high-pressure-tolerant
photoreactor
may
have
value
large-scale
applications.
It
allows
uniform
distribution
reactant
into
reactor
system
without
potential
risk
removing
powders
eluting
some
dissolved
ions
from
reactor.
Chemical Society Reviews,
Год журнала:
2021,
Номер
50(24), С. 13692 - 13729
Опубликована: Янв. 1, 2021
Recent
progress
of
earth-abundant,
nontoxic
perovskite
oxides,
halides
and
oxyhalides
for
photocatalysis
is
discussed
related
to
composition
structure.
Advanced Energy Materials,
Год журнала:
2020,
Номер
10(39)
Опубликована: Сен. 2, 2020
Abstract
The
photocatalytic
synthesis
of
solar
fuels
such
as
hydrogen
and
methane
from
water
carbon
dioxide
is
a
promising
strategy
to
store
abundant
energy
in
order
overcome
its
intermittency.
Although
this
approach
has
been
studied
for
decades
using
inorganic
semiconductor
photocatalysts,
organic
semiconductors
have
only
recently
gained
notable
attention.
tunable
levels
can
enable
the
design
photocatalysts
with
optimized
light
utilization.
However,
conversion
efficiency
so
far
limited
by
their
low
quantum
efficiencies.
To
address
issue,
various
photocatalyst
strategies
including
level
optimization,
surface
modification,
fabrication
heterojunctions
applied,
resulting
substantial
increases
efficiency.
This
progress
report
systematically
describes
employed
increase
generation
dioxide.
Particular
attention
given
describing
enhance
efficiency,
insights
are
provided
on
mechanisms
underlying
success
aid
rational
future
photocatalysts.
Perspectives
challenges
research
directions
efficient
also
provided.
Carbon Energy,
Год журнала:
2022,
Номер
4(3), С. 294 - 331
Опубликована: Апрель 11, 2022
Abstract
With
continuous
consumption
of
nonrenewable
energy,
solar
energy
has
been
predicted
to
play
an
essential
role
in
meeting
the
demands
and
mitigating
environmental
issues
future.
Despite
being
green,
clean
pollution‐free
cannot
be
adopted
directly
as
it
provide
sufficiently
high
density
work
absence
machinery.
Thus,
is
necessary
develop
effective
strategy
convert
store
into
chemical
achieve
social
sustainable
development
using
main
power
source.
Photocatalysis,
which
semiconductor
photocatalysts
a
key
role,
one
most
promising
candidates
for
realising
utilisation
sunlight
low‐cost
environmentally
friendly
method.
The
photocatalytic
efficiency
considerably
influenced
by
their
compositions.
Among
various
heterostructures,
Z‐scheme
heterojunction
interesting
architecture
due
its
outstanding
performance
excellent
artificial
imitation
photosynthesis.
have
attracted
considerable
attention
past
few
decades.
Herein,
we
review
contemporary
systems,
with
particular
focus
on
mechanistic
breakthroughs,
highlight
current
state‐of‐the‐art
systems.
Z‐type
are
classified
traditional,
all‐solid‐state,
direct
Z‐schemes
S‐scheme
photocatalysts.
morphology,
characterisation
working
mechanism
each
type
discussed
detail.
Furthermore,
applications
photoelectrochemical
water
splitting,
nitrogen
fixation,
pollutant
degradation
carbon
dioxide
reduction
illustrated.
Finally,
outline
challenges
potential
advances
architectures,
well
future
directions.
Chemical Science,
Год журнала:
2023,
Номер
14(13), С. 3400 - 3414
Опубликована: Янв. 1, 2023
The
activity
of
Ni–Mo
catalysts
for
the
hydrogen
evolution
reaction
originates
from
interfaces
alloy–oxide
or
alloy–hydroxide,
in
which
oxide
hydroxide
promotes
water
dissociation
and
alloy
accelerates
combination.
ACS Catalysis,
Год журнала:
2021,
Номер
11(18), С. 11429 - 11439
Опубликована: Авг. 31, 2021
Suppressing
the
formation
of
defects
such
as
oxygen
vacancies
and
Ti3+
in
SrTiO3
perovskite
lattice
has
been
regarded
an
effective
way
to
improve
photocatalytic
performance
overall
water-splitting
reaction.
In
this
work,
a
series
La,Al-codoped
catalysts
are
synthesized
by
flux
treatment
method
after
grounding.
An
appropriate
doping
amount
La3+
Al3+
ions
into
will
lead
fewer
defects,
responsible
for
enhancing
performance.
ion
introduce
perovskite,
resulting
decreasing
number
ions.
During
defect
engineering,
more
Sr2+
precipitate
onto
surface
caused
introduction
Al3+.
Hence,
engineering
is
applied
through
contributing
distortion,
allowing
surficial
re-enter
lattice,
leading
promoted
conversion
Ti4+.
Simultaneously,
also
beneficial
decrease
vacancies.
As
result,
essential
relationship
between
water
splitting
revealed.
The
optimized
0.6%
La
1%
Al
codoped
sample
loading
Rh
(0.1
wt
%)/Cr2O3
(0.05
%)/CoOOH
%)
gives
highest
activity
good
stability,
with
gas
evolution
rates
1.79
mmol·h–1
(H2)
0.91
(O2).
comparison,
apparent
quantum
efficiency
78.43%
under
365
nm
irradiation.
Journal of Physics D Applied Physics,
Год журнала:
2022,
Номер
55(32), С. 323003 - 323003
Опубликована: Май 13, 2022
Abstract
Renewable
fuel
generation
is
essential
for
a
low
carbon
footprint
economy.
Thus,
over
the
last
five
decades,
significant
effort
has
been
dedicated
towards
increasing
performance
of
solar
fuels
generating
devices.
Specifically,
to
hydrogen
efficiency
photoelectrochemical
cells
progressed
steadily
its
fundamental
limit,
and
faradaic
valuable
products
in
CO
2
reduction
systems
increased
dramatically.
However,
there
are
still
numerous
scientific
engineering
challenges
that
must
be
overcame
order
turn
into
viable
technology.
At
electrode
device
level,
conversion
efficiency,
stability
selectivity
significantly.
Meanwhile,
these
metrics
maintained
when
scaling
up
devices
while
maintaining
an
acceptable
cost
footprint.
This
roadmap
surveys
different
aspects
this
endeavor:
system
benchmarking,
scaling,
various
approaches
photoelectrodes
design,
materials
discovery,
catalysis.
Each
sections
focuses
on
single
topic,
discussing
state
art,
key
advancements
required
meet
them.
The
can
used
as
guide
researchers
funding
agencies
highlighting
most
pressing
needs
field.
Recently,
semiconductor‐based
photocatalytic
water
splitting
has
been
extensively
studied
as
a
promising
strategy
for
converting
solar
energy
into
carbon‐neutral
and
clean
H
2
fuel.
However,
the
lack
of
sufficient
active
sites
surface
redox
reactions
generally
results
in
unsatisfactory
performances
over
semiconductors.
For
this
problem,
cocatalyst
provides
an
encouraging
solution
is
great
significance
improving
performance.
Noble
metals
their
derivatives
are
mostly
utilized
efficient
cocatalytic
components,
but
scarcity
expensiveness
severely
hamper
large‐scale
applications.
Thereby,
utilization
noble‐metal‐free
cocatalysts
aroused
immense
research
attention.
Owing
to
facile
availability,
low
cost,
large
abundance,
high
stability,
performance,
transition‐metal‐based
materials
have
developed
desirable
candidates
process.
This
review
gives
outline
some
recent
advances
cocatalysts.
First,
fundamentals
presented,
including
classification,
function
mechanisms,
loading
methods,
modification
strategies,
design
considerations.
Second,
various
cases
depositing
reduction
cocatalysts,
oxidation
reduction–oxidation
dual
further
discussed.
Finally,
crucial
challenges
possible
directions
proposed.
