MXenes,
a
class
of
2-dimensional
transition
metal
carbides
and
nitrides,
have
garnered
important
attention
due
to
their
remarkable
electrical
thermal
conductivity,
high
photothermal
conversion
efficiency,
multifunctionality.
This
review
explores
the
potential
MXene
materials
in
various
applications,
including
energy
storage,
heat
dissipation
electronic
devices,
mitigation
electromagnetic
interference
wearable
technologies.
Recent
advancements
composites,
such
as
MXene/bacterial
cellulose
aerogel
films
MXene/polymer
demonstrated
enhanced
performance
phase
change
storage
shielding,
underscoring
versatility
effectiveness.
Although
notable
progress
has
been
made,
challenges
remain,
need
for
deeper
understanding
mechanisms,
improvements
mechanical
properties,
exploration
diverse
types,
development
sustainable
synthesis
methods.
paper
discusses
these
aspects
outlines
future
research
directions,
emphasizing
growing
importance
MXenes
addressing
health,
safety
concerns
modern
applications.
Abstract
Biomaterial‐based
flexible
electromagnetic
interference
(EMI)
shielding
composite
films
are
desirable
in
many
applications
of
wearable
electronic
devices.
However,
much
research
focuses
on
improving
the
EMI
performance
materials,
while
optimizing
comprehensive
safety
materials
has
been
neglected.
Herein,
cellulose
nanofiber@boron
nitride
nanosheet/silver
nanowire/bacterial
(CNF@BNNS/AgNW/BC)
with
sandwich
structure
fabricated
via
a
simple
sequential
vacuum
filtration
method.
For
first
time,
electrical
safety,
biosafety,
and
thermal
optimized
integratedly.
Since
both
sides
contain
CNF
BC
insulation
layers,
CNF@BNNS/AgNW/BC
exhibit
excellent
safety.
Furthermore,
benefiting
from
AgNW
conductive
networks
middle
layer,
effectiveness
49.95
dB
ultra‐fast
response
Joule
heating
performance.
More
importantly,
antibacterial
property
ensures
biosafety
films.
Meanwhile,
CNF@BNNS
layers
synergistically
enhance
conductivity
film,
reaching
high
value
8.85
W
m
‒1
K
,
which
significantly
enhances
its
when
used
miniaturized
device.
This
work
offers
new
ideas
for
fabricating
biomaterial‐based
ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(29), С. 38620 - 38630
Опубликована: Июль 10, 2024
Polymers
are
often
used
as
adhesives
to
improve
the
mechanical
properties
of
flexible
electromagnetic
interference
(EMI)
shielding
layered
films,
but
introduction
these
insulating
inevitably
reduces
EMI
performance.
Herein,
ultrafine
aramid
nanofibers
(UANF)
with
a
diameter
only
2.44
nm
were
binder
effectively
infiltrate
and
minimize
gaps
in
MXene
for
balancing
properties.
Combining
evaporation-induced
scalable
assembly
assisted
by
blade
coating,
large-scale
MXene/UANF
films
highly
aligned
compact
stacking
successfully
fabricated.
Compared
conventional
ANF
larger
7.05
nm,
UANF-reinforced
film
exhibits
"brick-mortar"
structure
higher
orientation
compacter
nanosheets,
thus
showing
properties,
electrical
conductivity,
By
optimizing
content,
can
achieve
optimal
tensile
strength
156.9
MPa,
toughness
2.9
MJ
m
ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(10), С. 12996 - 13005
Опубликована: Фев. 29, 2024
Flexible
pressure
sensors
are
intensively
demanded
in
various
fields
such
as
electronic
skin,
medical
and
health
detection,
wearable
electronics,
etc.
MXene
is
considered
an
excellent
sensing
material
due
to
its
benign
metal
conductivity
adjustable
interlayer
distance.
Exhibiting
both
high
sensitivity
long-term
stability
currently
urgent
pursuit
MXene-based
flexible
sensors.
In
this
work,
high-strength
methylcellulose
was
introduced
into
the
film
increase
distance
of
2D
nanosheets
fundamentally
overcome
self-stacking
problem.
Thus,
concurrent
improvement
capability
mechanical
strength
obtained.
By
appropriately
modulating
ratio
MXene,
obtained
sensor
presents
a
19.41
kPa–1
(0.88–24.09
kPa),
good
(10000
cycles),
complete
biodegradation
H2O2
solution
within
2
days.
Besides,
capable
detecting
wide
range
human
activities
(pulse,
gesture,
joint
movement,
etc.)
can
precisely
recognize
spatial
distribution,
which
serves
candidate
for
next-generation
devices.
Nano-Micro Letters,
Год журнала:
2024,
Номер
17(1)
Опубликована: Окт. 11, 2024
Abstract
The
design
and
fabrication
of
high
toughness
electromagnetic
interference
(EMI)
shielding
composite
films
with
diminished
reflection
are
an
imperative
task
to
solve
pollution
problem.
Ternary
MXene/ANF
(aramid
nanofibers)–MoS
2
nacre-like
layered
structure
here
fabricated
after
the
introduction
MoS
into
binary
system.
fulfills
impressive
“kill
three
birds
one
stone”
improvement
effect:
lubrication
toughening
mechanical
performance,
reduction
in
secondary
wave,
performance
photothermal
conversion.
After
(mass
ratio
50:50),
strain
failure
tensile
strength
increase
from
22.1
$$\pm$$
±
1.7%
105.7
6.4
MPa
25.8
0.7%
167.3
9.1
MPa,
respectively.
elevates
13.0
4.1
26.3
0.8
MJ
m
−3
(~
102.3%)
simultaneously.
And
effectiveness
(SE
R
)
50:50)
decreases
~
10.8%.
EMI
(EMI
SE)
41.0
dB
(8.2–12.4
GHz);
60:40),
increases
18.3
1.9%
28.1
53.5%),
SE
22.2%,
corresponding
is
43.9
dB.
also
leads
a
more
efficient
conversion
45
55
°C).
Additionally,
MXene/ANF–MoS
exhibit
excellent
electric
heating
quick
temperature
elevation
(15
s),
cycle
stability
(2,
2.5,
3
V),
long-term
(2520
s).
Combining
MXene
content,
ternary
could
be
applied
many
industrial
areas.
This
work
broadens
how
achieve
balance
between
properties
versatility
composites
case
high-function
fillers.
Nano-Micro Letters,
Год журнала:
2025,
Номер
17(1)
Опубликована: Фев. 6, 2025
Abstract
Herein,
a
novel
Janus-structured
multifunctional
membrane
with
integrated
electromagnetic
interference
(EMI)
shielding
and
personalized
thermal
management
is
fabricated
using
shear-induced
in
situ
fibrillation
vacuum-assisted
filtration.
Interestingly,
within
the
polytetrafluoroethylene
(PTFE)-carbon
nanotube
(CNT)-Fe
3
O
4
layer
(FCFe),
CNT
nanofibers
interweave
PTFE
fibers
to
form
stable
“silk-like”
structure
that
effectively
captures
Fe
particles.
By
incorporating
highly
conductive
MXene
layer,
FCFe/MXene
(FCFe/M)
exhibits
excellent
electrical/thermal
conductivity,
mechanical
properties,
flame
retardancy.
Impressively,
benefiting
from
rational
regulation
of
component
proportions
design
Janus
structure,
FCFe/M
thickness
only
84.9
µm
delivers
outstanding
EMI
effectiveness
44.56
dB
X-band,
normalized
specific
SE
reaching
10,421.3
cm
2
g
−1
,
which
attributed
“absorption-reflection-reabsorption”
mechanism.
Furthermore,
demonstrates
low-voltage-driven
Joule
heating
fast-response
photothermal
performance.
Under
stimulation
V
voltage
an
optical
power
density
320
mW
−2
surface
temperatures
membranes
can
reach
up
140.4
145.7
°C,
respectively.
In
brief,
anti-electromagnetic
radiation
temperature
attractive
candidate
for
next
generation
wearable
electronics,
compatibility,
visual
heating,
thermotherapy,
military
aerospace
applications.
This
study
explores
the
environmental
stability
of
MXenes,
revealing
formation
higher
hydrocarbons
and
carbon
oxides.
It
highlights
methane
dominance
under
reducing
conditions
oxide
production
oxidative
environments.
