Carbon,
Год журнала:
2024,
Номер
229, С. 119513 - 119513
Опубликована: Авг. 8, 2024
With
rapid
technological
advancements,
electromagnetic
radiation
is
becoming
one
of
new
forms
pollution,
which
not
only
affects
the
use
precision
instruments,
but
also
threatens
safety
human
life.
Electromagnetic
wave
(EMW)
absorbing
material
can
effectively
attenuate
EMW,
among
carbon
fiber
doped
magnetic
particles
possess
low
density,
multiple
attenuation,
and
magnetic-dielectric
synergy,
attracting
more
attention.
Carbon-based
fibers
achieve
combination
loss
dielectric
loss,
improve
impedance
match,
resulting
in
excellent
reflection
(RL)
effective
absorption
bandwidth
(EAB).
Herein,
recent
researches
on
carbon-based
are
reviewed,
focusing
preparation
methods
structural
difference.
It
specifically
introduces
their
performance
advantages,
providing
a
brief
analysis
structure-property
relationship.
Finally,
extensive
application
potential
emphasize,
highlighting
challenges
opportunities
field
EMW
absorption.
Advanced Materials,
Год журнала:
2023,
Номер
36(4)
Опубликована: Окт. 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.
Journal of Advanced Ceramics,
Год журнала:
2023,
Номер
12(4), С. 711 - 723
Опубликована: Фев. 15, 2023
Ti3C2Tx
MXene
shows
great
potential
in
the
application
as
microwave
absorbers
due
to
its
high
attenuation
ability.
However,
excessively
permittivity
and
self-stacking
are
main
obstacles
that
constrain
wide
range
of
applications.
To
tackle
these
problems,
herein,
microspheres
SiO2@Ti3C2Tx@CoNi
with
hydrangea-like
core–shell
structure
were
designed
prepared
by
a
combinatorial
electrostatic
assembly
hydrothermal
reaction
method.
These
constructed
an
outside
layer
CoNi
nanosheets
intermediate
wrapping
on
core
modified
SiO2,
engendering
both
homogenous
heterogeneous
interfaces.
Such
trilayer
"magnetic
microsize
supercapacitors"
can
not
only
induce
dielectric
loss
magnetic
but
also
provide
multilayer
interfaces
enhance
interfacial
polarization.
The
optimized
impedance
matching
could
boost
reflection
(RL)
electromagnetic
synergy.
synthesized
demonstrate
outstanding
absorption
(MA)
performance
benefited
from
advantages.
obtained
RL
value
was
−63.95
dB
at
ultra-thin
thickness
1.2
mm,
corresponding
effective
bandwidth
(EAB)
4.56
GHz.
This
work
demonstrates
designing
strategy
is
highly
efficient
for
tuning
MA
MXene-based
microspheres.
Advanced Functional Materials,
Год журнала:
2023,
Номер
33(48)
Опубликована: Сен. 8, 2023
Abstract
To
tackle
the
increasingly
complex
electromagnetic
(EM)
pollution
environment,
application‐oriented
wave
(EMW)
absorption
materials
with
ultra‐thin,
light
weight
and
strong
tolerance
to
harsh
environment
are
urgently
explored.
Although
graphene
aerogel‐based
lightweight
EMW
absorbers
have
been
developed,
thinner
thickness
more
effective
polarization
loss
strategies
still
essential.
Based
on
theory
of
transmission,
this
work
innovatively
proposes
a
high
attenuation
design
strategy
for
obtaining
ultra‐thin
materials,
cobalt
selenide
(CoSe
2
)
is
determined
as
animportant
part
absorbers.
In
order
obtain
dielectric
parameter
range
that
satisfies
characteristics
improve
properties
composite
CoSe
modified
N‐doped
reduced
oxide
(N‐RGO/CoSe
designed.
Meanwhile,
controllable
introduction
defect
engineering
into
RGO
can
activate
Schottky
heterointerfaces
composites
generate
interfacial
effect,
achieving
while
significantly
improving
EM
capability.
addition,
infrared
thermal
images
anti‐icing
experiments
show
has
good
corrosion
resistance,
stealth,
insulation
properties.
Therefore,
provides
an
thin‐thickness,
light‐weight,
high‐performance
embodying
advantages
N‐RGO/CoSe
in
practical
applications.
