Polymers,
Год журнала:
2024,
Номер
16(11), С. 1452 - 1452
Опубликована: Май 21, 2024
Designing
innovative
anode
materials
that
exhibit
excellent
ion
diffusion
kinetics,
enhanced
structural
stability,
and
superior
electrical
conductivity
is
imperative
for
advancing
the
rapid
charge–discharge
performance
widespread
application
of
sodium-ion
batteries.
Hollow-structured
have
received
significant
attention
in
electrode
design
due
to
their
kinetics.
Building
upon
this,
we
present
a
high-performance,
free-standing
MoO2@hollow
carbon
nanofiber
(MoO2@HCNF)
electrode,
fabricated
through
facile
coaxial
electrospinning
subsequent
heat
treatment.
In
comparison
MoO2@carbon
nanofibers
(MoO2@CNFs),
MoO2@HCNF
demonstrates
rate
capability,
attributed
its
larger
specific
surface
area,
higher
pseudocapacitance
contribution,
kinetics
sodium
ions.
The
discharge
capacities
(MoO2@CNF)
at
current
densities
0.1,
0.2,
0.5,
1.0,
2.0
5.0
A
g−1
are
195.55
(155.49),
180.98
(135.20),
163.81
(109.71),
144.05
(90.46),
121.16
(71.21)
88.90
(44.68)
mAh
g−1,
respectively.
Additionally,
coefficients
ions
MoO2@HCNFs
8.74
×
10−12
1.37
cm2
s−1,
which
surpass
those
MoO2@CNFs
(6.49
9.30
10−13
s−1)
during
discharging
process.
addition,
these
prepared
outstanding
flexibility,
crucial
power
storage
industry
smart
wearable
devices.
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(28)
Опубликована: Март 12, 2024
Abstract
Photocatalytic
hydrogen
evolution
reaction
(HER)
is
a
very
promising
and
sustainable
technology,
yet
precisely
exploring
effective
HER
photocatalysts
remains
critical
challenge
due
to
the
rapid
charge
recombination.
In
this
work,
brand‐new
S‐scheme
heterojunction
successfully
designed
constructed
by
in
situ
growth
of
twinned
Zn
0.5
Cd
S
Solid
Solution
(CZS)
on
novel
fluorenone‐based
covalent
triazine
framework
(FOCTF).
The
heterojunctions
identified
via
irradiation
XPS,
electron
spin
resonance,
which
can
greatly
improve
photocatalytic
rate
stability.
Under
illumination,
highest
well‐designed
CZS‐FOCTF
247.62
mmolg
−1
h
,
3.83
times
as
high
that
pure
CZS.
Experimental
theoretical
investigations
corroborate
new
FOCTF
has
well‐matched
staggered
band
alignment
work
function
difference
with
as‐fabricated
establish
favorable
internal
electric
field,
accelerates
directional
migration,
thereby
enhancing
separation
utilization
efficiency
carriers.
This
finding
achieves
spatially
oriented
powerful
transport
at
interfaces
inorganic–organic
hybrid
heterojunctions.
It
thus
desirable
furnish
an
alternative
strategy
rationally
design
CZS‐based
based
organic
oxidation
semiconductors
for
diversified
reactions.
Advanced Optical Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 8, 2025
Abstract
Room
temperature
phosphorescence
(RTP)
materials
have
broad
applications
in
the
field
of
optical
devices
due
to
tunable
wavelengths
and
lifetimes.
However,
creating
efficient
RTP
that
possess
multiple
properties
remains
a
challenge.
Herein,
novel
approach
is
developed
situ
form
carbon
quantum
dots
(C‐dots)
embedded
boron
nitride
carbide
oxide
(B‐N‐C‐O)
matrices
by
introducing
nitrogen,
phosphorus,
dopants
into
C‐dots
(P/B/N
doped
C‐dots),
enabling
dual
emissions
time‐dependent
afterglow.
P/B/N
are
synthesized
vacuum‐assisted
gradient
heating
using
ethylenediamine,
phosphoric
acid,
boric
acid
as
precursors
with
yield
20
g
per
batch.
The
introduction
provided
triplet
states,
which
enable
and,
long
phosphorescent
lifetime
ranging
from
0.98
1.30
s.
formation
surrounding
enables
ultrahigh
up
50%,
surpassing
most
recently
reported
C‐dots.
To
demonstrate
potential
C‐dots,
they
used
anti‐counterfeiting
ink
dyes
for
security
codes
polyester
yarn,
showing
their
suitability
high‐level
applications.
This
work
provides
an
effective
route
large‐scale
synthesis
highly
preparation
high‐performance
devices.
Journal of Materials Chemistry C,
Год журнала:
2024,
Номер
12(16), С. 5818 - 5825
Опубликована: Янв. 1, 2024
By
controlling
the
addition
of
different
types
divalent
(
e.g.
Mn
and
Sr)
or
trivalent
Al,
Ga
In)
metal
ions,
we
synthesized
fluorescent
C-dots
with
single
double
emissions
using
a
simple
heating
approach,
successfully
applied
them
in
optical
electrical
applications.
ACS Sustainable Chemistry & Engineering,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 5, 2025
The
development
of
high-performance
photocatalysts
is
crucial
for
enabling
efficient
CO2
conversion
in
photocatalytic
systems.
Here,
we
developed
a
novel
heterojunction
(N-BON)
composed
Ni-doped
Bi4O5Br2
and
NiCo2O4
photoreduction
with
the
help
simulated
sunlight.
optimized
21N-BON
composite
exhibited
highest
activity,
producing
18.66
μmol·g–1·h–1
CO
selectivity
95.7%,
which
represents
remarkable
2.15-fold
4.75-fold
increase
yield
compared
to
Bi4O5Br2/NiCo2O4
Bi4O5Br2,
respectively.
Photoelectrochemical
testing,
photoluminescence
analysis,
theoretical
calculations
demonstrated
that
enhanced
performance
attributed
improved
photogenerated
carrier
separation,
driven
by
synergistic
effects
Ni-doping-induced
spin
polarization
built-in
electric
field
from
construction.
Additionally,
situ
DRIFTS
analyses
was
used
clarify
reaction
mechanisms
on
photocatalyst
surface,
showing
Ni
doping
adsorption
promoted
formation
key
intermediates.
This
study
offers
important
guidance
developing
advanced
solar-driven
reduction,
contributing
sustainable
energy
solutions.
Solar-driven
photocatalysis
hydrogen
evolution
is
a
promising
method
to
generate
from
water,
green
and
clean
energy
source,
using
solar
semiconductors.
Up
now,
TiO2
still
represents
the
most
inexpensive
widely
studied
metal
oxide
semiconductors
for
photocatalysis.
coupling
with
other
form
heterojunctions
considered
an
efficient
way
improve
photocatalytic
performances.
In
this
review,
TiO2-based
are
classified
into
conventional,
p-n
type,
Z-scheme,
S-scheme,
based
on
their
band
structures.
The
mechanisms
of
various
types
described
in
detail.
order
rationally
design
better
synthesize
excellent
performance,
contribution
theoretical
calculations
field
heterojunction
photocatalysts
key
role
prediction
also
discussed.
Finally,
opportunities
current
challenges
promote
performance
provided
assist
superior
performance.
Scientific Reports,
Год журнала:
2024,
Номер
14(1)
Опубликована: Сен. 16, 2024
Highly
dispersed
Cobalt
doped
ZnS
nanostructures
were
successfully
fabricated
on
the
surfaces
of
graphene
sheets
via
a
simple
hydrothermal
method.
X-ray
diffraction
(XRD),
photocurrent
spectroscopy
(XPS),
Raman
(RS),
Fourier
transform
infrared
(FTIR)
and
Scanning
electron
microscopy
(SEM)
utilized
to
analyze
structural
characteristics
cobalt
decorated
with
