Advanced Functional Materials,
Год журнала:
2024,
Номер
34(19)
Опубликована: Янв. 9, 2024
Abstract
The
trends
of
miniaturization,
lightweight,
and
high
integration
in
electronics
have
brought
serious
issues
heat
dissipation
electromagnetic
compatibility
also
limited
the
simultaneous
use
thermally
conductive
microwave
absorption
materials.
Therefore,
it
is
imperative
to
design
materials
that
possess
those
dual
functions.
In
this
work,
one‐pot
method
used
anchor
zeolitic
imidazolate
framework
ZIF‐67
coated
with
polydopamine
(PDA)
on
boron
nitride
(BN)
obtain
BN@ZIF‐67@PDA.
pyrolysis
product
BN@Co‐C@C
as
heterostructured
conductive/microwave
fillers
blended
polyethylene
terephthalate
(PET)
prepare
BN@Co‐C@C/PET
composites.
When
mass
ratio
BN
ZIF‐67@PDA
7.5:1
fraction
7.5
@Co‐C@C
45
wt%,
@Co‐C@C/PET
composites
exhibit
excellent
thermal
conductivities
performances.
conductivity
coefficient
5.37
W
m
−1
K
,
which
35.8
times
higher
than
PET
(0.15
),
wt%
(BN
/Co‐C@C)/PET
(4.03
)
prepared
by
directly
mixing.
minimum
reflection
loss
are
−63.1
dB
at
4.72
GHz,
corresponding
effective
bandwidth
1.28
GHz
(4.08–5.36
GHz),
achieving
performance
C
band.
Advanced Functional Materials,
Год журнала:
2022,
Номер
33(1)
Опубликована: Ноя. 4, 2022
Abstract
Swelling
is
ubiquitous
for
conventional
hydrogels
but
not
favorable
many
situations,
especially
underwater
applications.
In
this
study,
an
anti‐swelling
and
mechanically
robust
polyacrylic
acid
(PAAc)/gelatin
composite
hydrogel
reported
with
a
rapid
gelation
process
(10
1
s)
under
mild
conditions
via
the
synergy
of
MXene‐activated
initiation
zirconium
ion
(Zr
4+
)‐induced
cross‐linking,
without
requirement
external
energy
input.
The
MXene
found
efficient
to
activate
chain
initiation,
while
Zr
prone
indispensable
facilitating
cross‐linking
formed
polymer
chains.
resulting
exhibits
integration
exceptional
properties
high
mechanical
performance
at
room
temperature,
thanks
dense
hydrogen
bonds
between
PAAc
gelatin
chains
that
enable
upper
critical
solution
temperature
above
temperature.
Also,
desirable
electrical
conductivity
emerges
in
due
simultaneous
contribution
,
allowing
stable
signal
output
gel
upon
deformation
underwater.
As
demonstration,
communicator
by
harnessing
as
sensing
module
assembled,
which
capable
wirelessly
delivering
messages
decoder
on
ground
Morse
codes.
This
study
provides
exemplary
way
tough
durable
Separation and Purification Technology,
Год журнала:
2023,
Номер
320, С. 124144 - 124144
Опубликована: Май 24, 2023
As
a
result
of
serious
pollution
in
the
water
environment,
sewage
disposal
has
been
receiving
lot
attention
from
industry.
Metal-organic
frameworks
(MOFs)
attract
interest
adsorption
and
separation
due
to
their
complex
structures
easily
adjustable
pore
sizes.
Magnetic
MOFs
inheriting
advantages
both
large
surface
area
easy
recovery
have
great
potentials
pollutants.
This
paper
reviews
recent
research
progress
on
ions,
dyes
other
contaminants
by
different
types
(magnetic
non-magnetic
MOFs)
magnetic
composites
(Fe3O4@MOF)
aqueous
environments.
The
factors
affecting
pollutants,
thermodynamic
kinetic
effects
are
discussed
with
detailed
examples.
Finally,
challenges
opportunities
for
further
development
elucidated.
Inorganic Chemistry Frontiers,
Год журнала:
2023,
Номер
10(15), С. 4358 - 4392
Опубликована: Янв. 1, 2023
In
this
study,
the
preparation
methods
of
MXenes
and
layered
dihydroxides
(LDHs)
are
reviewed.
addition,
electrochemical
performances
for
supercapacitors
MXene/LDHs
composites
summarized
in
detail.
ACS Nano,
Год журнала:
2023,
Номер
17(7), С. 6875 - 6885
Опубликована: Март 30, 2023
Although
single-function
camouflage
under
infrared/visible
bands
has
made
great
advances,
it
is
still
difficult
for
materials
to
cope
with
the
synergy
detection
spanning
both
visible
and
infrared
spectra
adapt
complex
variable
scenarios.
Herein,
a
trilayer
composite
integrating
thermal
insulation,
heat
absorption,
solar/electro-thermal
conversions,
thermochromism
fabricated
dual
camouflages
by
combining
anisotropic
MXene/reduced
graphene
oxide
hybrid
aerogel
n-octadecane
phase
change
material
in
its
bottom
thermochromic
coating
on
upper
surface.
Benefiting
from
synergetic
heat-transfer
suppression
derived
insulation
of
porous
layer
absorption
phase-change
layer,
can
serve
as
cloak
hide
target
signatures
images
ambient
surroundings
during
day
jungle
at
night
all
scenes
assist
escaping
visual
surveillance
virtue
green
appearance.
For
desert
scenarios,
spontaneously
increase
surface
temperature
via
solar-thermal
energy
conversion,
merging
targets
into
high-temperature
surroundings;
meanwhile,
vary
color
original
yellow,
enabling
visually
disappear
sands
hills.
This
work
provides
promising
strategy
designing
adaptive
adjustable
integrated
counter
multiband
complicated
environments.
