ACS Nano,
Journal Year:
2022,
Volume and Issue:
16(4), P. 6700 - 6711
Published: March 25, 2022
High-strength,
flexible,
and
multifunctional
characteristics
are
highly
desirable
for
electromagnetic
interference
(EMI)
shielding
materials
in
the
field
of
electric
devices.
In
this
work,
inspired
by
natural
nacre,
we
fabricated
large-scale,
layered
MXene/amarid
nanofiber
(ANF)
nanocomposite
papers
blade-coating
process
plus
sol-gel
conversion
step.
The
as-synthesized
possess
excellent
mechanical
performance,
that
is,
exceptional
tensile
strength
(198.80
±
5.35
MPa),
large
strain
(15.30
1.01%),
good
flexibility
(folded
into
various
models
without
fracture),
which
ascribed
to
synergetic
interactions
interconnected
three-dimensional
network
frame
hydrogen
bonds
between
MXene
ANF.
More
importantly,
with
extensive
continuous
conductive
paths
formed
nanosheets
present
a
high
EMI
effectiveness
13188.2
dB
cm2
g-1
frequency
range
8.2-12.4
GHz.
interestingly,
show
Joule
heating
performance
fast
thermal
response
(<10
s)
low
driving
voltage
(≤4
V).
As
such,
large-scale
MXene/ANF
considered
as
promising
alternatives
wide
applications
management.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
35(16)
Published: Jan. 27, 2023
Flexible
multifunctional
polymer-based
electromagnetic
interference
(EMI)
shielding
composite
films
have
important
applications
in
the
fields
of
5G
communication
technology,
wearable
electronic
devices,
and
artificial
intelligence.
Based
on
design
a
porous/multilayered
structure
using
polyimide
(PI)
as
matrix
polymethyl
methacrylate
(PMMA)
microspheres
template,
flexible
(Fe3
O4
/PI)-Ti3
C2
Tx
-(Fe3
/PI)
with
controllable
pore
sizes
distribution
Ti3
hollow
are
successfully
prepared
by
sacrificial
template
method.
Owing
to
structure,
when
size
is
10
µm
mass
ratio
PMMA/Ti3
2:1,
film
has
most
excellent
EMI
performance,
effectiveness
(EMI
SE)
85
dB.
It
further
verified
finite
element
simulation
that
an
effect
waves.
In
addition,
good
thermal
conductivity
(thermal
coefficient
3.49
W
(m·K)-1
)
mechanical
properties
(tensile
strength
65.3
MPa).
This
conductivity,
demonstrated
great
potential
for
protection
high-power,
portable,
devices.
Nano-Micro Letters,
Journal Year:
2021,
Volume and Issue:
13(1)
Published: Aug. 18, 2021
Abstract
With
the
widespread
application
of
electronic
communication
technology,
resulting
electromagnetic
radiation
pollution
has
been
significantly
increased.
Metal
matrix
interference
(EMI)
shielding
materials
have
disadvantages
such
as
high
density,
easy
corrosion,
difficult
processing
and
price,
etc.
Polymer
EMI
composites
possess
light
weight,
corrosion
resistance
processing.
However,
current
polymer
present
relatively
low
electrical
conductivity
poor
performance.
This
review
firstly
discusses
key
concept,
loss
mechanism
test
method
shielding.
Then
development
status
is
summarized,
research
progress
with
different
structures
illustrated,
especially
for
their
preparation
methods
evaluation.
Finally,
corresponding
scientific
technical
problems
are
proposed,
trend
also
prospected.
"Image
missing"
Small,
Journal Year:
2021,
Volume and Issue:
17(42)
Published: Sept. 14, 2021
With
the
rapid
development
and
popularization
of
smart,
portable,
wearable
flexible
electronic
devices,
urgent
demands
have
been
raised
for
electromagnetic
interference
(EMI)
shielding
films
to
solve
related
pollution
problems.
polyvinyl
alcohol
(PVA)
as
polymer
matrix,
sandwich-structured
EMI
nanocomposite
are
prepared
via
electrospinning-laying-hot
pressing
technology,
where
Fe3
O4
/PVA
composite
electrospun
nanofibers
in
top
bottom
layers
Ti3
C2
Tx
middle
layer.
Owing
electrospinning
process
successful
construction
sandwich
structure,
when
amounts
respectively
only
13.3
26.7
wt%,
effectiveness
(EMI
SE)
reach
40
dB
with
thickness
75
µm,
higher
than
that
(Fe3
/Ti3
)/PVA
(21
dB)
based
on
blending-electrospinning-hot
under
same
fillers.
Furthermore,
possess
excellent
thermal
conductivities
mechanical
properties.
This
novel
kind
performances,
conductivities,
properties
presents
broad
application
prospects
fields
protection
high-power,
devices.
Nature Communications,
Journal Year:
2021,
Volume and Issue:
12(1)
Published: Feb. 5, 2021
Abstract
Developing
an
ultimate
electromagnetic
(EM)-absorbing
material
that
can
not
only
dissipate
EM
energy
but
also
convert
the
generated
heat
into
electricity
is
highly
desired
remains
a
significant
challenge.
Here,
we
report
hybrid
Sn@C
composite
with
biological
cell-like
splitting
ability
to
address
this
The
consisting
of
Sn
nanoparticles
embedded
within
porous
carbon
would
split
under
cycled
annealing
treatment,
leading
more
dispersed
ultrasmall
size.
Benefiting
from
electron-transmitting
phonon-blocking
structure
created
by
behavior,
wave-electricity
device
constructed
optimum
could
achieve
efficiency
at
widely
used
frequency
region
and
maximum
thermoelectric
figure
merit
0.62
473
K,
as
well
constant
output
voltage
power
condition
microwave
radiation.
This
work
provides
promising
solution
for
solving
interference
self-powered
devices.
Nano-Micro Letters,
Journal Year:
2022,
Volume and Issue:
14(1)
Published: March 25, 2022
With
rapid
development
of
5G
communication
technologies,
electromagnetic
interference
(EMI)
shielding
for
electronic
devices
has
become
an
urgent
demand
in
recent
years,
where
the
corresponding
EMI
materials
against
detrimental
radiation
plays
essential
role.
Meanwhile,
with
high
flexibility
and
functional
integrity
are
highly
demanded
emerging
applications.
Hitherto,
a
variety
flexible
lightweight
multifunctionalities
have
been
developed.
In
this
review,
we
not
only
introduce
materials,
but
also
elaborate
mechanisms
index
"green
shielding"
performance.
addition,
construction
strategies
sophisticated
summarized.
Finally,
propose
several
possible
research
directions
near
future,
which
could
be
inspirational
to
fast-growing
next-generation
reliable
multipurpose
protections
as
offered
by
materials.
SusMat,
Journal Year:
2021,
Volume and Issue:
1(3), P. 413 - 431
Published: July 19, 2021
Abstract
High‐frequency
electromagnetic
waves
and
electronic
products
can
bring
great
convenience
to
people's
life,
but
lead
a
series
of
interference
(EMI)
problems,
such
as
potential
dangers
the
normal
operation
components
human
safety.
Therefore,
research
EMI
shielding
materials
has
attracted
extensive
attention
by
scholars.
Among
them,
polymer‐based
with
light
weight,
high
specific
strength,
stable
properties
have
become
current
mainstream.
The
construction
3D
conductive
networks
proved
be
an
effective
method
for
preparation
excellent
effectiveness
(SE).
In
this
paper,
mechanism
is
briefly
introduced,
emphasis
on
methods
latest
progress
different
networks.
key
scientific
technical
problems
solved
in
field
are
also
put
forward.
Finally,
development
trend
application
prospects
prospected.
