Advanced Science,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 21, 2024
Abstract
A
substantial
challenge
in
employing
covalent
organic
frameworks
(COFs)
for
photoelectrochemical
(PEC)
water
splitting
lies
improving
their
solution‐processability
while
concurrently
facilitating
the
transfer
of
charges
and
mass
to
catalytic
sites.
Herein,
we
synthesize
a
solution‐processable
conjugated
reticular
oligomers
(CROs),
further
embed
ruthenium
(Ru)
into
CRO,
forming
CRO‐Ru
with
homo‐nuclear
hetero‐atomic.
Thereafter,
CRO
construct
an
organic–organic
heterojunction
membrane
at
nanoscale.
This
design
achieves
perfect
lattice
matching,
significantly
reducing
energy
barrier
transfer,
effectively
lowering
recombination
rate
charge
carriers.
The
optimized
photocathode,
CuI/CRO‐Bpy:CRO‐Bpy‐Ru‐1:1+P3HT/SnO
2
/Pt,
exhibits
efficiency
111.0
µA
cm
−2
0.4
V
versus
reversible
hydrogen
electrode
(RHE).
Compared
original
bulk
COFs
CROs,
is
improved.
apparent
improvements
carrier
separation
are
responsible
high
PEC
activity.
In
heterojunction,
incorporation
CRO‐Bpy‐Ru
longer
excited‐state
lifetime
built‐in
electric
field
has
accelerated
photo‐induced
electron
from
conduction
band
(CB)
CRO‐Bpy
valence
(VB)
CRO‐Bpy‐Ru,
suppressing
charges.
These
findings
offer
significant
guidance
optimization
high‐performance
catalysts.
Energy & Fuels,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 9, 2025
With
the
increasing
demand
for
downstream
ammonia
products,
research
on
fuel
has
received
growing
attention.
Therefore,
under
"dual
carbon"
context,
it
is
crucial
to
develop
an
energy-efficient
and
environmentally
friendly
method
synthesis.
Current
indicates
that
electrocatalytic
synthesis
one
of
most
promising
methods.
This
study
systematically
summarizes
three
major
factors
influencing
nitrogen
reduction
reaction
(eNRR)
catalysts
synthesis:
material
optimization,
structural
design,
engineering.
In
terms
materials,
precious-metal-based,
non-precious-metal-based,
metal-free
eNRR
are
classified
listed.
By
examination
properties
catalytic
effects
various
metals
non-metals
in
synthesis,
materials
with
highest
activity
can
be
further
identified.
To
enhance
efficiency,
strategies,
such
as
vacancy
creation,
doping,
interface
engineering,
facet
changes
size
morphology
active
sites,
have
been
summarized.
integration
reactions,
including
microscale
activation,
proton
transfer,
electron
efficiency
was
discussed
depth.
Finally,
urgent
issues
need
addressed
current
were
discussed,
unique
insights
future
development
provided.
review
aims
provide
innovative
ideas
design
improve
rate
selectivity
catalysts.
Advanced Science,
Journal Year:
2024,
Volume and Issue:
11(24)
Published: April 18, 2024
Abstract
Copper‐based
bimetallic
heterojunction
catalysts
facilitate
the
deep
electrochemical
reduction
of
CO
2
(eCO
RR)
to
produce
high‐value‐added
organic
compounds,
which
hold
significant
promise.
Understanding
influence
copper
interactions
with
other
metals
on
adsorption
strength
various
intermediates
is
crucial
as
it
directly
impacts
reaction
selectivity.
In
this
review,
an
overview
formation
mechanism
catalytic
products
in
eCO
RR
provided
and
highlight
uniqueness
copper‐based
catalysts.
By
considering
different
metals'
tendencies
toward
intermediates,
are
classified,
including
copper,
into
four
categories.
The
significance
advantages
constructing
then
discussed
delve
research
findings
current
development
status
types
Finally,
insights
offered
design
strategies
for
future
high‐performance
electrocatalysts,
aiming
contribute
multi‐carbon
fuels
high
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(9)
Published: Jan. 28, 2024
Abstract
The
electrocatalytic
preparation
of
hydrogen
at
different
pH
values
not
only
achieves
excellent
device
performance
but
also
promotes
the
application
reactive
oxygen
species
(ROS)
clearance
and
anti‐inflammation.
However,
it
is
difficult
to
develop
materials
that
simultaneously
achieve
these
properties.
Herein,
beaded
necklace‐like
Co
9
Se
8
microspheres
using
a
general
facile
synthetic
strategy
reported.
‐modified
electrode
has
three
applications:
efficient
water
splitting
for
enhanced
performance,
ROS
scavenging,
anti‐inflammatory
activity.
Experiments,
high‐angle‐annular‐dark‐field
scanning
transmission
electron
microscopy,
density
functional
theory
calculations
indicate
reconstructed
Co(OH)
2
plays
vital
role
in
evolution
reaction
transition
from
*O
*OOH
actual
rate‐determining
step.
material,
with
its
unique
structure,
exhibits
exceptional
production
capabilities
phosphate
buffer
solution
(pH
7.4).
In
particular,
produce
under
neutral
conditions
can
effectively
reduce
levels
significantly
inhibit
inflammation‐related
pathological
processes,
playing
antioxidant
cellular
level.
obtained
results
as‐synthesized
more
suitable
splitting,
applications,
outperforming
other
metal
electrodes
rendering
practical
industrial
clinical
applications.
Carbon Energy,
Journal Year:
2024,
Volume and Issue:
6(10)
Published: Oct. 1, 2024
Abstract
The
restacking
and
oxidizable
nature
of
vanadium‐based
carbon/nitride
(V
2
C‐MXene)
poses
a
significant
challenge.
Herein,
tellurium
(Te)‐doped
V
C/V
O
3
electrocatalyst
is
constructed
via
mild
H
oxidation
calcination
treatments.
Especially,
this
work
rationally
exploits
the
inherent
easy
characteristic
associated
with
MXene
to
alter
interfacial
information,
thereby
obtaining
stable
self‐generated
heterointerfaces.
Meanwhile,
microetching
effect
creates
numerous
pores
address
issues.
Besides,
Te
element
doping
settles
issue
awkward
levels
absorption/desorption
ability
intermediates.
obtains
an
unparalleled
hydrogen
evolution
reaction
oxygen
overpotential
83.5
279.8
mV
at
−10
10
mA
cm
−2
,
respectively.
In
addition,
overall
water‐splitting
device
demonstrates
low
cell
voltage
1.41
obtain
.
Overall,
drawbacks
can
be
turned
into
benefits
based
on
planning
strategy
create
these
electrocatalysts
desirable
kinetics.
