Nano-Micro Letters,
Journal Year:
2024,
Volume and Issue:
17(1)
Published: Sept. 27, 2024
Abstract
Currently,
the
demand
for
electromagnetic
wave
(EMW)
absorbing
materials
with
specific
functions
and
capable
of
withstanding
harsh
environments
is
becoming
increasingly
urgent.
Multi-component
interface
engineering
considered
an
effective
means
to
achieve
high-efficiency
EMW
absorption.
However,
modulation
has
not
been
fully
discussed
great
potential
in
field
In
this
study,
multi-component
tin
compound
fiber
composites
based
on
carbon
(CF)
substrate
were
prepared
by
electrospinning,
hydrothermal
synthesis,
high-temperature
thermal
reduction.
By
utilizing
different
properties
substances,
rich
heterogeneous
interfaces
are
constructed.
This
effectively
promotes
charge
transfer
enhances
interfacial
polarization
conduction
loss.
The
SnS/SnS
2
/SnO
/CF
abundant
have
exhibit
excellent
absorption
at
a
loading
50
wt%
epoxy
resin.
minimum
reflection
loss
(RL)
−
46.74
dB
maximum
bandwidth
5.28
GHz.
Moreover,
composite
coatings
exhibited
long-term
corrosion
resistance
Q235
steel
surfaces.
Therefore,
study
provides
strategy
design
complex
environments.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(48)
Published: Oct. 9, 2024
Abstract
The
advancement
of
thin,
lightweight,
and
high‐power
electronic
devices
has
increasingly
exacerbated
issues
related
to
electromagnetic
interference
heat
accumulation.
To
address
these
challenges,
a
spray‐drying‐sintering
process
is
employed
assemble
chain‐like
CoNi
flake
boron
nitride
(BN)
into
hydrangea‐like
CoNi@BN
heterostructure
fillers.
These
fillers
are
then
composited
with
polydimethylsiloxane
(PDMS)
develop
CoNi@BN/PDMS
composites,
which
integrate
low‐frequency
microwave
absorption
thermal
conductivity.
When
the
volume
fraction
44
vol%
mass
ratio
BN
3:1,
composites
exhibit
optimal
performance
in
both
achieve
minimum
reflection
loss
−49.9
dB
effective
bandwidth
2.40
GHz
(3.92–6.32
GHz)
at
thickness
4.4
mm,
fully
covering
n79
band
(4.4–5.0
for
5G
communications.
Meanwhile,
in‐plane
conductivity
(
λ
∥
)
7.31
W
m
−1
K
,
≈11.4
times
(0.64
pure
PDMS,
32%
higher
than
that
(CoNi/BN)/PDMS
(5.52
same
obtained
through
direct
mixing.
Nano-Micro Letters,
Journal Year:
2023,
Volume and Issue:
15(1)
Published: Aug. 25, 2023
The
development
of
wearable
multifunctional
electromagnetic
protective
fabrics
with
multifunctional,
low
cost,
and
high
efficiency
remains
a
challenge.
Here,
inspired
by
the
unique
flower
branch
shape
"Thunberg's
meadowsweet"
in
nature,
nanofibrous
composite
membrane
hierarchical
structure
was
constructed.
Integrating
sophisticated
0D@2D@1D
structures
multiple
heterointerfaces
can
fully
unleash
application
potential
membrane.
targeted
induction
method
used
to
precisely
regulate
formation
site
morphology
metal-organic
framework
precursor,
intelligently
integrate
heterostructures
enhance
dielectric
polarization,
which
improves
impedance
matching
loss
mechanisms
wave
absorbing
materials.
Due
synergistic
enhancement
electrospinning-derived
carbon
nanofiber
"stems",
MOF-derived
nanosheet
"petals"
transition
metal
selenide
nano-particle
"stamens",
CoxSey/NiSe@CNSs@CNFs
(CNCC)
obtains
minimum
reflection
value
(RLmin)
-68.40
dB
at
2.6
mm
maximum
effective
absorption
bandwidth
(EAB)
8.88
GHz
thin
thickness
2.0
filling
amount
only
5
wt%.
In
addition,
multi-component
heterostructure
endow
fibrous
excellent
flexibility,
water
resistance,
thermal
management,
other
properties.
This
work
provides
perspectives
for
precise
design
rational
fabrics.
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
34(9)
Published: Nov. 14, 2023
Abstract
Optimization
of
components
and
micromorphology
regulation
are
shown
to
be
effective
in
boosting
electromagnetic
wave
absorption
(EMWA).
One
approach
achieve
this
enhancement
is
by
utilizing
the
polarization
effects
heterogeneous
interfaces.
Herein,
NiSe
2
‐CoSe
@C@MoSe
composites
derived
from
NiCo‐MOF‐74
fabricated
via
a
facile
selenization
reaction
subsequent
hydrothermal
method.
By
varying
mass
ratios
@C
MoSe
,
series
with
hierarchical
flower‐like
core–shell
structures
obtained.
The
EMWA
properties
display
trend
initially
increasing
then
decreasing
content
.
Interestingly,
when
ratio
3:2,
minimum
reflection
loss
(RL)
value
−50.10
dB
an
bandwidth
(RL<
−10
dB)
can
reach
4.80
GHz
(13.20–18.00
GHz).
remarkable
capability
ascribed
synergy
conductive
loss,
suitable
impedance
matching.
This
work
establishes
new
pathway
for
synthesis
transition
metal
dichalcogenides‐based
composites,
which
hold
great
promise
as
high‐performance
materials
applications.
Nano-Micro Letters,
Journal Year:
2023,
Volume and Issue:
16(1)
Published: Dec. 18, 2023
The
severe
dependence
of
traditional
phase
change
materials
(PCMs)
on
the
temperature-response
and
lattice
deficiencies
in
versatility
cannot
satisfy
demand
for
using
such
complex
application
scenarios.
Here,
we
introduced
metal
ions
to
induce
self-assembly
MXene
nanosheets
achieve
their
ordered
arrangement
by
combining
suction
filtration
rapid
freezing.
Subsequently,
a
series
MXene/
K
