Nanomaterials,
Journal Year:
2023,
Volume and Issue:
13(5), P. 793 - 793
Published: Feb. 21, 2023
With
the
increase
in
heat
power
density
modern
integrating
electronics,
thermal
interface
materials
(TIM)
that
can
efficiently
fill
gaps
between
source
and
sinks
enhance
dissipation
are
urgently
needed
owing
to
their
high
conductivity
excellent
mechanical
durability.
Among
all
emerged
TIMs,
graphene-based
TIMs
have
attracted
increasing
attention
because
of
ultrahigh
intrinsic
graphene
nanosheets.
Despite
extensive
efforts,
developing
high-performance
papers
with
through-plane
remains
challenging
despite
in-plane
conductivity.
In
this
study,
a
novel
strategy
for
enhancing
by
situ
depositing
AgNWs
on
sheets
(IGAP)
was
proposed,
which
could
boost
paper
up
7.48
W
m−1
K−1
under
packaging
conditions.
TIM
performance
test
actual
simulated
operating
conditions,
our
IGAP
exhibits
strongly
enhanced
compared
commercial
pads.
We
envision
as
has
great
potential
boosting
development
next-generation
circuit
electronics.
Nano-Micro Letters,
Journal Year:
2023,
Volume and Issue:
16(1)
Published: Nov. 30, 2023
With
the
rapid
development
of
5G
information
technology,
thermal
conductivity/dissipation
problems
highly
integrated
electronic
devices
and
electrical
equipment
are
becoming
prominent.
In
this
work,
"high-temperature
solid-phase
&
diazonium
salt
decomposition"
method
is
carried
out
to
prepare
benzidine-functionalized
boron
nitride
(m-BN).
Subsequently,
m-BN/poly(p-phenylene
benzobisoxazole)
nanofiber
(PNF)
nanocomposite
paper
with
nacre-mimetic
layered
structures
prepared
via
sol-gel
film
transformation
approach.
The
obtained
m-BN/PNF
50
wt%
m-BN
presents
excellent
conductivity,
incredible
insulation,
outstanding
mechanical
properties
stability,
due
construction
extensive
hydrogen
bonds
π-π
interactions
between
PNF,
stable
structures.
Its
λ∥
λ⊥
9.68
0.84
W
m-1
K-1,
volume
resistivity
breakdown
strength
as
high
2.3
×
1015
Ω
cm
324.2
kV
mm-1,
respectively.
Besides,
it
also
extremely
tensile
193.6
MPa
decomposition
temperature
640
°C,
showing
a
broad
application
prospect
in
high-end
management
fields
such
equipment.
Nano-Micro Letters,
Journal Year:
2023,
Volume and Issue:
15(1)
Published: June 29, 2023
Thermal
management
is
essential
in
our
body
as
it
affects
various
bodily
functions,
ranging
from
thermal
discomfort
to
serious
organ
failures,
an
example
of
the
worst-case
scenario.
There
have
been
extensive
studies
about
wearable
materials
and
devices
that
augment
thermoregulatory
functionalities
body,
employing
diverse
systematic
approaches
attaining
homeostasis.
This
paper
reviews
recent
progress
functional
contribute
wearables,
particularly
emphasizing
strategic
methodology
regulate
temperature.
exist
several
methods
promote
personal
a
form.
For
instance,
we
can
impede
heat
transfer
using
thermally
insulating
material
with
extremely
low
conductivity
or
directly
cool
skin
surface.
Thus,
classify
many
into
two
branches,
passive
active
modes,
which
are
further
subdivided
specific
strategies.
Apart
discussing
strategies
their
mechanisms,
also
identify
weaknesses
each
strategy
scrutinize
its
potential
direction
should
follow
make
substantial
contributions
future
regulatory
industries.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(28)
Published: March 10, 2024
Abstract
Wearable
sensing
technologies
have
witnessed
rapid
development
in
recent
years
due
to
their
accessibility,
functionality,
and
affordability.
However,
heat
accumulation
electromagnetic
interference
electronic
components
adversely
affect
the
performance
seriously
damage
human
health.
Herein,
cellulose
nanofibers
(CNFs)‐based
composites
with
high
thermal
conductivity
(TC)
excellent
(EMI)
shielding
are
prepared
using
CNFs
as
templates
followed
by
coating
tannic
acid
non‐covalent
3‐aminopropyltriethoxysilane
covalent
co‐modified
graphene
nanoplatelets
(denoted
mGNPs)
through
a
simple
electrostatic
self‐assembly
method.
The
subsequent
hot‐pressing
process
yield
order
layer
mGNPs
CNFs‐based
distributed
along
orientation
close
contact
CNFs,
fashion
similar
nervous
system.
resulting
reveal
TC
of
136.2
W/(m·K)
superior
EMI
effectiveness
105
dB.
Thus,
they
used
wearable
sensors
based
on
triboelectric
effect
monitor
health
real‐time,
well
express
emotion
Morse
code.
In
sum,
proposed
strategy
provides
an
avenue
prolong
service
life
flexible
ensure
safe
use,
promising
for
future
wisdom
healthcare
smart
robotics.
Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: May 7, 2024
Abstract
Hydrogen
peroxide
(H
2
O
)
has
emerged
as
a
kind
of
multi‐functional
green
oxidants
with
extensive
industrial
utility.
Oxidized
carbon
materials
exhibit
promises
electrocatalysts
in
the
two‐electron
(2e
−
oxygen
reduction
reaction
(ORR)
for
H
production.
However,
precise
identification
and
fabrication
active
sites
that
selectively
yield
present
serious
challenge.
Herein,
structural
engineering
strategy
is
employed
to
synthesize
oxygen‐doped
quantum
dots
(o‐CQD)
2e
ORR.
The
surface
electronic
structure
o‐CQDs
systematically
modulated
by
varying
isomerization
precursors,
thereby
demonstrating
excellent
electrocatalyst
performance.
Notably,
o‐CQD‐3
emerges
most
promising
candidate,
showcasing
remarkable
selectivity
96.2%
(n
=
2.07)
at
0.68
V
versus
RHE,
coupled
low
Tafel
diagram
66.95
mV
dec
−1
.
In
flow
cell
configuration,
achieves
productivity
338.7
mmol
g
catalyst
h
,
maintaining
consistent
production
stability
over
an
impressive
120‐hour
duration.
Utilizing
situ
technology
density
functional
theory
calculations,
it
unveil
edge
are
facilely
functionalized
C‐O‐C
groups
under
alkaline
ORR
conditions.
This
approach
advances
forefront
sustainable
catalysis
provides
profound
insight
into
carbon‐based
design
environmental‐friendly
chemical
synthesis
processes.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(34)
Published: May 7, 2024
Abstract
Personal
thermal
management
textiles
have
garnered
a
lot
of
attention
because
they
can
efficiently
preserve
the
body's
and
moisture
comfort
while
saving
energy
consumption.
Nonetheless,
conduction
cooling‐based
textile
research
is
scarce
frequently
encounters
obstacles
like
overlooking
through‐plane
heat
conduction,
management,
durability
assurance.
Here,
dual‐cooling
(DCT)
that
combines
high‐efficiency
dissipation
sweat
evaporation
with
3D
conductive
network
Janus
wetting
structure
demonstrated.
The
DCT
achieves
notable
in‐plane
conductivity
(8.57
0.70
W
m
−1
K
),
along
practical
mechanical
qualities
(tensile
fracture
strength
65
MPa),
under
influence
multistage
network.
Additionally,
benefits
from
its
structure,
exhibiting
unidirectional
moisture‐wicking
capability
(transport
index
1081%)
fast
water
performance
(0.34
g
h
).
Rapid
are
advantageous
features
for
cooling
human
body
in
both
static
dynamic
situations.
Compared
to
cotton
fabric,
lower
temperature
by
up
3.7
°C.
This
strategy
provides
fresh
perspective
on
development
advanced
functional
personalized
savings
buildings.
Nano-Micro Letters,
Journal Year:
2023,
Volume and Issue:
15(1)
Published: Aug. 18, 2023
Preparing
polymeric
coatings
with
well
corrosion
resistance
and
high
thermal
conductivity
(TC)
to
prolong
operational
life
ensure
service
reliability
of
heat
conductive
metallic
materials
has
long
been
a
substantive
urgent
need
while
difficult
task.
Here
we
report
multifunctional
epoxy
composite
coating
(F-CB/CEP)
by
synthesizing
cerium
methacrylate
ingeniously
using
it
as
novel
curing
agent
inhibit
for
resin
modifier
boron
nitride
through
"cation-π"
interaction.
The
prepared
F-CB/CEP
presents
TC
4.29
W
m-1
K-1,
which
is
much
higher
than
other
reported
anti-corrosion
polymer
thereby
endowing
metal
coated
this
outstanding
management
performance
compared
those
pure
coating.
Meanwhile,
the
low-frequency
impedance
remains
at
5.1
×
1011
Ω
cm2
even
after
181
days
immersion
in
3.5
wt%
NaCl
solution.
Besides,
also
exhibits
hydrophobicity,
self-cleaning
properties,
temperature
adhesion.
This
work
provides
valuable
insights
preparation
high-performance
potential
be
used
advanced
materials,
especially
conduction
metals
protection.
Communications Materials,
Journal Year:
2024,
Volume and Issue:
5(1)
Published: Feb. 21, 2024
Abstract
High
thermal
conductive
polymers
have
become
more
important
because
equipment
requires
high
performance,
high-energy
density,
and
integration.
There
are
different
strategies
to
make
polymers,
among
which
is
the
synthesis
of
in
liquid
crystal
phase.
However,
conductivity
such
material
rarely
beyond
1
W
m
−1
K
disordered
molecular
directionality.
The
directionality
between
zones
limits
a
specific
direction.
Here,
we
show
method
for
unifying
direction
by
applying
an
external
electric
field
on
monomers.
Meanwhile,
exposing
transparent
specially
designed
photopolymerisable
monomer
UV
light,
situ
polymerised
into
polymer
with
intrinsic
1.02
.
alignment
was
characterised
resulted
resultant
conductivity.
