Advanced Functional Materials,
Год журнала:
2024,
Номер
34(33)
Опубликована: Май 9, 2024
Abstract
Modulating
of
electronic
structure
photocatalyst
and
integration
dual
channel
pathway
are
promising
strategy
for
efficient
photosynthesis
hydrogen
peroxide
(H
2
O
)
from
pure
water
without
sacrificial
agent
oxygen
exposure.
In
this
work,
nontoxic
aromatic
dialdehyde
is
used
to
replace
the
commonly
toxic
formaldehyde
form
resorcinol‐phthalaldehyde
resins
through
a
hydrothermal
method.
The
introducing
ring
as
π
spacer
increases
separation
distance
electrons
holes
avoid
their
recombination.
H
can
be
produced
via
integrated
reduction
reaction
(ORR)
oxidation
(WOR)
due
suitable
energy
band
positions
spatially
separated
sites.
Resorcinol‐p‐phthalaldehyde
(RP)
resin
exhibits
yield
3351
µmol
g
−1
h
with
high
apparent
quantum
(AQY)
14.9%
at
420
nm
solar‐to‐chemical
conversion
(SCC)
efficiency
1.54%.
This
work
provides
simple
modulate
charge
redox
on
molecular
level
design.
Advanced Energy Materials,
Год журнала:
2024,
Номер
14(23)
Опубликована: Апрель 3, 2024
Abstract
Solar
energy
can
be
utilized
in
photocatalysis
technology
to
realize
light‐driven
hydrogen
peroxide
(H
2
O
)
production,
a
green
chemical
synthesis
route.
Designing
high‐performance
photocatalysts
is
critical
achieving
practical
solar
H
production.
During
the
past
decade,
significant
research
progress
made
photocatalytic
materials
for
Particularly
2D
materials‐based
stand
out
due
their
unique
physical
and
properties.
This
review
highlights
intricate
relationship
between
material
innovation
photochemical
It
starts
with
fundamental
principles
of
generation,
focusing
on
crucial
steps
such
as
photon
absorption,
carrier
dynamics,
surface
reactions,
challenges
that
solve
at
each
step.
Then,
various
production
are
introduced
detail.
Engineering
strategies
optimize
performance
discussed
afterward.
Finally,
future
opportunities
designing
outlined.
expected
inspire
engineering
conversion
other
chemicals.
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(24)
Опубликована: Фев. 19, 2024
Abstract
Photosynthesis
of
hydrogen
peroxide
(H
2
O
)
is
regarded
as
an
economically
efficient
and
environmentally
friendly
synthesis
method.
However,
the
scalability
photocatalytic
H
production
(PHP)
hindered
by
sluggish
reaction
kinetics
rapid
recombination
photogenerated
charge
carriers.
In
this
study,
organic
amine‐constrained
ions
intercalated
carbon
nitride/CdSe‐diethylenetriamine
(K
+
/I
−
‐CN/CdSe‐D)
S‐scheme
heterojunction
synthesized
using
organic–inorganic
hybrid
approach
employed
for
PHP
first
time.
The
optimization
interface
I
K
contributed
to
enhanced
light
absorption
capabilities
reduced
interlayer
transfer
distance.
Concurrently,
synergy
C─Se
bonds
at
effectively
modulated
electron
pathways.
coordination
environment
mechanism
are
thoroughly
investigated
extended
X‐ray
fine
structure
in
situ
irradiated
photoelectron
spectroscopy.
rate
40%K
‐CN/CdSe‐D
reached
2240.23
µmol
h
−1
g
pure
water.
This
study
highlights
significance
dual
tuning
chemical
ionic
intercalation
effective
strategy
enhancing
,
paving
way
further
advancements
technology.
Nature Communications,
Год журнала:
2024,
Номер
15(1)
Опубликована: Июнь 26, 2024
Abstract
Suppressing
the
kinetically
favorable
lattice
oxygen
oxidation
mechanism
pathway
and
triggering
adsorbate
evolution
at
expense
of
activity
are
state-of-the-art
strategies
for
Ru-based
electrocatalysts
toward
acidic
water
oxidation.
Herein,
atomically
dispersed
Ru
species
anchored
into
an
stable
vinyl-linked
2D
covalent
organic
framework
with
unique
crossed
π-conjugation,
termed
as
COF-205-Ru.
The
π-conjugated
structure
COF-205-Ru
not
only
suppresses
dissolution
through
strong
Ru-N
motifs,
but
also
reduces
state
by
multiple
π-conjugations,
thereby
activating
coordinated
to
stabilizing
vacancies
during
process.
Experimental
results
including
X-ray
absorption
spectroscopy,
in
situ
Raman
powder
diffraction
patterns,
theoretical
calculations
unveil
activated
elevated
energy
level
O
2
p
band,
decreased
vacancy
formation
energy,
promoted
electrochemical
stability,
significantly
reduced
barrier
potential
determining
step
Consequently,
obtained
displays
a
high
mass
2659.3
A
g
−1
,
which
is
32-fold
higher
than
commercial
RuO
retains
long-term
durability
over
280
h.
This
work
provides
strategy
simultaneously
promote
stability
catalysts
Advanced Materials,
Год журнала:
2024,
Номер
36(21)
Опубликована: Фев. 11, 2024
Abstract
Photoelectrochemical
(PEC)
catalysis
provides
the
most
promising
avenue
for
producing
value‐added
chemicals
and
consumables
from
renewable
precursors.
Over
last
decades,
PEC
catalysis,
including
reduction
of
feedstock,
oxidation
organics,
activation
functionalization
C─C
C─H
bonds,
are
extensively
investigated,
opening
new
opportunities
employing
technology
in
upgrading
readily
available
resources.
However,
several
challenges
still
remain
unsolved,
hindering
commercialization
process.
This
review
offers
an
overview
targeted
at
synthesis
high‐value
sustainable
First,
fundamentals
evaluating
reactions
context
product
both
anode
cathode
recalled.
Then,
common
photoelectrode
fabrication
methods
that
have
been
employed
to
produce
thin‐film
photoelectrodes
highlighted.
Next,
advancements
systematically
reviewed
discussed
conversion
various
feedstocks
highly
valued
chemicals.
Finally,
prospects
field
presented.
aims
facilitating
further
development
precursors
products
other
pharmaceuticals.
Nature Communications,
Год журнала:
2024,
Номер
15(1)
Опубликована: Авг. 21, 2024
The
insufficient
availability
and
activity
of
interfacial
water
remain
a
major
challenge
for
alkaline
hydrogen
evolution
reaction
(HER).
Here,
we
propose
an
"on-site
disruption
near-site
compensation"
strategy
to
reform
the
bonding
network
via
deliberate
cation
penetration
catalyst
support
engineering.
This
concept
is
validated
using
tip-like
bimetallic
RuNi
nanoalloys
planted
on
super-hydrophilic
high-curvature
carbon
nanocages
(RuNi/NC).
Theoretical
simulations
suggest
that
tip-induced
localized
concentration
hydrated
K+
facilitates
optimization
dynamics
intermediate
adsorption.
In
situ
synchrotron
X-ray
spectroscopy
endorses
H*
spillover-bridged
Volmer‒Tafel
mechanism
synergistically
relayed
between
Ru
Ni.
Consequently,
RuNi/NC
exhibits
low
overpotential
12
mV
high
durability
1600
h
at
10
mA
cm‒2
HER,
demonstrates
performance
in
both
electrolysis
chlor-alkali
electrolysis.
offers
microscopic
perspective
design
manipulation
local
structure
toward
enhanced
HER
kinetics.
A
with
optimized
H2
reported.
designed
shows
catalytic
by
achieving
13.6-fold
higher
mass
than
Pt/C.
ACS Catalysis,
Год журнала:
2024,
Номер
14(10), С. 7726 - 7735
Опубликована: Май 2, 2024
Constructing
compact
heterostructures
proves
to
be
a
productive
approach
achieving
charge
separation
and
photocatalytic
efficiency.
However,
the
stochastic
nature
of
interface
orientation
lattice
mismatch
in
an
apparently
heterostructure
often
misleads
carrier
migration
molecular
activation
interface.
Here,
S
defect-enriched
ZnIn2S4–CdIn2S4
heterojunctions
were
prepared
for
H2O2
production.
Notably,
this
study
utilized
only
water
oxygen
as
raw
materials
without
additional
reagents,
yield
843.02
μmol
g–1
h–1.
A
plethora
experimental
results
substantiate
that
existence
internal
stress
initiates
restructuring
interwoven
surface
misfit
dislocation
networks.
On
one
hand,
interfacial
coherency
establishes
central
transmission
channel
significantly
mitigate
transfer
resistance
caused
by
vacancies.
Furthermore,
induces
structural
reconstruction
enhance
polarization
adsorption
O2,
well
reduce
reaction
energy.
Our
findings
offer
valuable
insights
into
underlying
mechanism
governing
activity
through
uncover
relationship
between
compacted
