Advanced Science,
Journal Year:
2018,
Volume and Issue:
6(2)
Published: Nov. 19, 2018
Abstract
Photo‐electrochemical
(PEC)
water
splitting,
as
an
essential
and
indispensable
research
branch
of
solar
energy
applications,
has
achieved
increasing
attention
in
the
past
decades.
Between
two
photoelectrodes,
photoanodes
for
PEC
oxidation
are
mostly
studied
facile
selection
n‐type
semiconductors.
Initially,
efficiency
process
is
rather
limited,
which
mainly
results
from
existing
drawbacks
such
instability
serious
charge‐carrier
recombination.
To
improve
performances,
researchers
gradually
focus
on
exploring
many
strategies,
among
engineering
photoelectrodes
with
suitable
cocatalysts
one
most
feasible
promising
methods
to
lower
reaction
obstacles
boost
splitting
ability.
Here,
basic
principles,
modules
system,
evaluation
parameters
reactions
occurring
surface
photoanodes,
functions
promotion
performance
demonstrated.
Then,
key
progress
cocatalyst
design
construction
applied
oxygen
evolution
emphatically
introduced
influences
different
kinds
elucidated
detail.
Finally,
outlook
highly
active
photosynthesis
also
included.
Materials Advances,
Journal Year:
2021,
Volume and Issue:
2(6), P. 1821 - 1871
Published: Jan. 1, 2021
Nanomaterials
have
emerged
as
an
amazing
class
of
materials
that
consists
a
broad
spectrum
examples
with
at
least
one
dimension
in
the
range
1
to
100
nm.
Angewandte Chemie International Edition,
Journal Year:
2018,
Volume and Issue:
57(18), P. 5076 - 5080
Published: March 2, 2018
Abstract
Endowing
materials
with
specific
functions
that
are
not
readily
available
is
always
of
great
importance,
but
extremely
challenging.
Co
4
N,
its
beneficial
metallic
characteristics,
has
been
proved
to
be
highly
active
for
the
oxidation
water,
while
it
notoriously
poor
catalyzing
hydrogen
evolution
reaction
(HER),
because
unfavorable
d‐band
energy
level.
Herein,
we
successfully
endow
N
prominent
HER
catalytic
capability
by
tailoring
positions
center
through
transition‐metal
doping.
The
V‐doped
nanosheets
display
an
overpotential
37
mV
at
10
mA
cm
−2
,
which
substantially
better
than
and
even
close
benchmark
Pt/C
catalysts.
XANES,
UPS,
DFT
calculations
consistently
reveal
enhanced
performance
attributed
downshift
center,
helps
facilitate
H
desorption.
This
concept
could
provide
valuable
insights
into
design
other
catalysts
beyond.
Advanced Materials,
Journal Year:
2018,
Volume and Issue:
30(20)
Published: March 30, 2018
Bismuth
vanadate
(BiVO4
)
is
a
promising
photoanode
material
for
photoelectrochemical
(PEC)
water
splitting.
However,
owing
to
the
short
carrier
diffusion
length,
trade-off
between
sufficient
light
absorption
and
efficient
charge
separation
often
leads
poor
PEC
performance.
Herein,
new
electrodeposition
process
developed
prepare
bismuth
oxide
precursor
films,
which
can
be
converted
transparent
BiVO4
films
with
well-controlled
oxygen
vacancies
via
mild
thermal
treatment
process.
The
optimized
film
exhibits
an
excellent
back
illumination
efficiency
mainly
due
presence
of
enriched
act
as
shallow
donors.
By
loading
FeOOH/NiOOH
cocatalysts,
dual
photoanodes
exhibit
remarkable
highly
stable
photocurrent
density
5.87
mA
cm-2
at
1.23
V
versus
reversible
hydrogen
electrode
under
AM
1.5
G
illumination.
An
artificial
leaf
composed
/FeOOH/NiOOH
single
sealed
perovskite
solar
cell
delivers
solar-to-hydrogen
conversion
high
6.5%
unbiased
Angewandte Chemie International Edition,
Journal Year:
2019,
Volume and Issue:
59(1), P. 136 - 152
Published: Feb. 21, 2019
Abstract
Photoelectrochemical
(PEC)
water
splitting
is
an
attractive
strategy
for
the
large‐scale
production
of
renewable
hydrogen
from
water.
Developing
cost‐effective,
active
and
stable
semiconducting
photoelectrodes
extremely
important
achieving
PEC
with
high
solar‐to‐hydrogen
efficiency.
Perovskite
oxides
as
a
large
family
metal
are
extensively
investigated
electrodes
in
owing
to
their
abundance,
(photo)electrochemical
stability,
compositional
structural
flexibility
allowing
achievement
electrocatalytic
activity,
superior
sunlight
absorption
capability
precise
control
tuning
band
gaps
edges.
In
this
review,
research
progress
design,
development,
application
perovskite
summarized,
special
emphasis
placed
on
understanding
relationship
between
composition/structure
activity.
Advanced Energy Materials,
Journal Year:
2019,
Volume and Issue:
10(1)
Published: Nov. 21, 2019
Abstract
Developing
efficient
and
affordable
catalysts
is
of
great
significance
for
energy
environmental
sustainability.
Heterostructure
photocatalysts
exhibit
a
better
performance
than
either
the
parent
phases
as
it
changes
band
bending
at
interfaces
provides
driving
force
carrier
separation,
thus
mitigating
effects
recombination
back‐reaction.
Herein,
photo/electrochemical
applications
variety
metal
sulfides
(MS
x
)
(MoS
2
,
CdS,
CuS,
PbS,
SnS
ZnS,
Ag
S,
Bi
S
3
In
)/TiO
heterojunctions
are
summarized,
including
organic
degradation,
water
splitting,
CO
reduction
conversion.
First,
general
introduction
on
each
MS
material
(especially
bandgap
structures)
will
be
given.
Then
based
/TiO
heterostructures
reviewed
from
perspective
light
harvesting
ability,
charge
separation
transportation,
surface
chemical
reactions.
Special
focus
given
to
CdS/TiO
PbS/TiO
‐based
quantum
dot
sensitized
solar
cells.
Ternary
composites
by
taking
advantages
positive
synergetic
also
well
summarized.
Finally,
conclusions
made
regarding
approaches
structure
design,
authors'
future
architectural
design
electrode
construction
This
work
make
up
gap
TiO
nanocomposites
shed
fabrication
more
‐metal
oxide
junctions
in
applications.
Advanced Energy Materials,
Journal Year:
2018,
Volume and Issue:
9(2)
Published: Nov. 19, 2018
Abstract
Photo‐electrochemical
(PEC)
solar
energy
conversion
offers
the
promise
of
low‐cost
renewable
fuel
generation
from
abundant
sunlight
and
water.
In
this
Review,
recent
developments
in
photo‐electrochemical
water
splitting
are
discussed
with
respect
to
promise.
State‐of‐the‐art
device
performance
is
put
context
current
understanding
necessary
requirements
for
cost‐effective
hydrogen
(in
terms
solar‐to‐hydrogen
efficiency
system
durability,
particular).
Several
important
studies
at
p‐type
photocathodes
highlighted,
mostly
protection
layers
(for
enhanced
durability),
but
also
a
few
examples
where
protective
not
needed.
Recent
work
widely
studied
n‐type
BiVO
4
photoanode
detailed,
which
highlights
needs
necessities
next
big
material
yet
be
discovered.
The
emerging
new
research
direction
photo‐electrocatalytic
upgrading
biomass
substrates
toward
value‐added
chemicals
then
discussed,
before
closing
commentary
on
how
PEC
materials
remains
worthwhile
endeavor.
Advanced Materials,
Journal Year:
2019,
Volume and Issue:
31(25)
Published: May 8, 2019
Abstract
CO
2
reduction
to
carbon
feedstocks
using
heterogeneous
photocatalysts
is
an
attractive
means
of
addressing
both
climate
change
and
the
depletion
fossil
fuels.
Of
particular
importance
development
a
photosystem
capable
functioning
in
response
visible
light,
which
accounts
for
majority
solar
spectrum,
representing
kind
artificial
photosynthesis.
Hybrid
systems
comprising
metal
complex
semiconductor
are
promising
because
excellent
electrochemical
(and/or
photocatalytic)
activity
complexes
during
ability
semiconductors
efficiently
oxidize
water
molecular
O
.
Here,
hybrid
photoelectrodes
combination
with
oxidation
described.
