Materials Advances,
Год журнала:
2025,
Номер
6(3), С. 992 - 1005
Опубликована: Янв. 1, 2025
We
engineered
nitrogen-doped
and
etched
microwave-absorbing
composites
from
sustainable
peanut
shells,
combined
with
PMMA.
These
materials
achieved
high
K-band
absorption,
moderate
shielding,
efficiency
thin,
cost-effective
designs.
Reasonable
composition
design
and
controllable
structure
are
effective
strategies
for
harmonic
electromagnetic
wave
(EMW)
adsorption
of
multi-component
composites.
On
this
basis,
the
hybrid
MoS2
/CoS2
/VN
multilayer
with
triple
heterogeneous
interface
is
prepared
by
simple
stirring
hydrothermal,
which
can
satisfy
synergistic
interaction
between
different
components
obtain
excellent
EMW
absorption
performance.
Due
to
presence
multiple
interfaces,
composites
will
produce
strong
interfacial
polarization,
while
defects
in
sample
become
center
resulting
dipole
polarization.
structural
composite
material,
material
not
only
has
good
conductive
loss
polarization
loss,
but
also
maintain
stability
simulated
seawater,
enhance
corrosion
resistance.
The
dual
functions
resistant
microwave
achieves
a
minimum
reflection
(RL)
-50.48
dB
an
bandwidth
up
5.76
GHz,
covering
both
X-band
Ku-band.
Finally,
study
provides
reference
development
materials
based
on
transition
metal
nitrides.
Nano-Micro Letters,
Год журнала:
2023,
Номер
16(1)
Опубликована: Ноя. 6, 2023
Electromagnetic
wave
(EMW)
absorbing
materials
have
an
irreplaceable
position
in
the
field
of
military
stealth
as
well
electromagnetic
pollution
control.
And
order
to
cope
with
complex
environment,
design
multifunctional
and
multiband
high
efficiency
EMW
absorbers
remains
a
tremendous
challenge.
In
this
work,
we
designed
three-dimensional
porous
structure
via
salt
melt
synthesis
strategy
optimize
impedance
matching
absorber.
Also,
through
interfacial
engineering,
molybdenum
carbide
transition
layer
was
introduced
between
selenide
nanoparticles
carbon
matrix
improve
absorption
behavior
The
analysis
indicates
that
number
components
heterogeneous
interfaces
significant
impact
on
performance
absorber
due
mechanisms
such
polarization
conduction
loss
by
engineering.
Wherein,
prepared
MoSe
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Май 9, 2024
Abstract
Recently,
the
design
and
development
of
efficient
microwave
absorbents
by
facile
engineering
approaches
have
attracted
much
attention.
Particularly,
some
unique
structures
caused
cross‐scale
are
promising
in
enhancing
absorbing
capability
toward
irradiation.
Herein,
strategy
is
implemented
to
enhance
electromagnetic
wave
absorption
performance
polymetallic
sulfides
(PMS).
In
PMS,
dipole
polarization
unit
optimized,
distribution
electronic
states
improved
doping
Ti
atoms;
Meanwhile,
MS/M
3
S
4
homogeneous
hetero‐phases
interfaces
constructed
PMS
using
a
phase
separation
strategy;
conductivity
modulated
addition
acetylene
black
(ACET).
The
synergy
leads
significant
enhancement
(MA)
PMS/ACET
composites.
optimal
reflection
loss
value
Ti‐LES
with
10%
ACET
reaches
−55.49
dB
effective
bandwidth
6.73
GHz.
17.5%
ACET‐conditioned
Ti‐HES
achieves
−37.2
at
low
frequency
4.8
This
study
not
only
provides
novel
for
new
broadband
MA
materials
but
also
validates
idea
multi‐scale
synergistic
optimization
materials.