Nano-Micro Letters,
Journal Year:
2024,
Volume and Issue:
16(1)
Published: Feb. 2, 2024
High-performance
microwave
absorption
(MA)
materials
must
be
studied
immediately
since
electromagnetic
pollution
has
become
a
problem
that
cannot
disregarded.
A
straightforward
composite
material,
comprising
hollow
MXene
spheres
loaded
with
C-Co
frameworks,
was
prepared
to
develop
multiwalled
carbon
nanotubes
(MWCNTs).
high
impedance
and
suitable
morphology
were
guaranteed
by
the
exoskeleton,
attenuation
ability
provided
MWCNTs
endoskeleton,
material
performance
greatly
enhanced
layered
core-shell
structure.
When
thickness
only
2.04
mm,
effective
bandwidth
5.67
GHz,
minimum
reflection
loss
(RL
Advanced Science,
Journal Year:
2023,
Volume and Issue:
10(32)
Published: Sept. 21, 2023
Abstract
Stealth
technology
is
used
to
enhance
the
survival
of
military
equipment
in
field
surveillance,
as
it
utilizes
a
combination
techniques
render
itself
undetectable
by
enemy
radar
systems.
Radar
absorbing
materials
(RAMs)
are
specialized
reduce
reflection
(or
absorption)
signals
provide
stealth
capability,
which
core
component
passive
countermeasures
applications.
The
properties
RAMs
can
be
optimized
adjusting
their
composition,
microstructure,
and
surface
geometry.
Carbon‐based
present
promising
approach
for
fabrication
ultrathin,
versatile,
high‐performance
due
large
specific
area,
lightweight,
excellent
dielectric
properties,
high
electrical
conductivity,
stability
under
harsh
conditions.
This
review
begins
with
brief
history
an
introduction
electromagnetic
waves,
systems,
materials.
followed
discussion
recent
research
progress
carbon‐based
RAMs,
including
carbon
blacks,
fibers,
nanotubes,
graphite,
graphene,
MXene,
along
in‐depth
examination
principles
strategies
on
attenuation
characteristics.
Hope
this
will
offer
fresh
perspectives
design
thereby
fostering
deeper
fundamental
understanding
promoting
practical
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
36(4)
Published: Oct. 23, 2023
Abstract
Microwave
absorption
materials
(MAMs)
are
originally
developed
for
military
purposes,
but
have
since
evolved
into
versatile
with
promising
applications
in
modern
technologies,
including
household
use.
Despite
significant
progress
bench‐side
research
over
the
past
decade,
MAMs
remain
limited
their
scope
and
yet
to
be
widely
adopted.
This
review
explores
history
of
from
first‐generation
coatings
second‐generation
functional
absorbers,
identifies
bottlenecks
hindering
maturation.
It
also
presents
potential
solutions
such
as
exploring
broader
spatial
scales,
advanced
characterization,
introducing
liquid
media,
utilizing
novel
toolbox
(machine
learning,
ML),
proximity
lab
end‐user.
Additionally,
it
meticulously
compelling
medicine,
mechanics,
energy,
optics,
sensing,
which
go
beyond
efficiency,
along
current
development
status
prospects.
interdisciplinary
direction
differs
previous
primarily
focused
on
meeting
traditional
requirements
(i.e.,
thin,
lightweight,
wide,
strong),
can
defined
next
generation
smart
absorbers.
Ultimately,
effective
utilization
ubiquitous
electromagnetic
(EM)
waves,
aided
by
third‐generation
MAMs,
should
better
aligned
future
expectations.
Small,
Journal Year:
2023,
Volume and Issue:
19(25)
Published: March 18, 2023
Multifunctional
applications
including
efficient
microwave
absorption
and
electromagnetic
interference
(EMI)
shielding
as
well
excellent
Li-ion
storage
are
rarely
achieved
in
a
single
material.
Herein,
multifunctional
nanocrystalline-assembled
porous
hierarchical
NiO@NiFe2
O4
/reduced
graphene
oxide
(rGO)
heterostructure
integrating
absorption,
EMI
shielding,
functions
is
fabricated
tailored
to
develop
high-performance
energy
conversion
devices.
Owing
its
structural
compositional
advantages,
the
optimized
/15rGO
achieves
minimum
reflection
loss
of
-55
dB
with
matching
thickness
2.3
mm,
effective
bandwidth
up
6.4
GHz.
The
effectiveness
reaches
8.69
dB.
exhibits
high
initial
discharge
specific
capacity
1813.92
mAh
g-1
,
which
1218.6
after
289
cycles
remains
at
784.32
500
0.1
A
.
In
addition,
demonstrates
long
cycling
stability
current
densities.
This
study
provides
an
insight
into
design
advanced
materials
devices
innovative
method
solving
environmental
problems.
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
33(27)
Published: March 27, 2023
Abstract
The
high
filler
loading
(FL)
is
a
bottleneck
in
developing
lightweight
ferromagnetic
microwave
absorbers
(MAs)
for
the
actual
applications.
Sequential
architecture
design
of
MAs
can
induce
strange
physical
behaviors
due
to
unique
coupling‐enhancement
effect
between
functional
units,
providing
vast
potential
achieving
absorption
performance.
However,
FLs
current
sequential
fail
be
designed
on
demand
because
dielectric‐magnetic
cannot
fulfilled.
influence
engineering
macroscopic
properties
or
microscopic
loss
mechanism
still
needs
more
exploration.
Herein,
based
four
mesoscopic
models
(particles,
chains,
bundles,
and
fibers)
series
with
different
architectures
are
prepared
via
bottom‐up
self‐assembly
method.
fibrous
samples
exhibit
best
performance
(−51.3
dB,
4.12
GHz)
at
breakthrough
FL
2
wt%,
which
one
order
magnitude
less
than
other
MAs.
Strange
behaviors,
including
negative
permittivity
heterodromous
chiral
vortex,
occur
units
lateral
configurations.
Further,
special
established
reveal
attenuation
evolutionary
mechanism.
This
study
clarifies
relationship
provides
new
sight
understand
electromagnetic
