Renewable and Sustainable Energy Reviews,
Journal Year:
2023,
Volume and Issue:
187, P. 113730 - 113730
Published: Sept. 15, 2023
Utilizing
phase
change
materials
(PCMs),
which
can
be
tailored
to
melt
or
solidify
at
specific
temperatures,
as
an
energy
storage
medium
provides
effective
way
store
latent
thermal
heat
for
diverse
applications.
However,
conventional
PCMs
exhibit
significant
disadvantages,
such
low
conductivity
and
leakage.
Therefore,
highly-thermally-conductive
composite
(CPCMs)
have
received
increasing
research
interest
by
virtue
of
integrating
nanofillers
with
high
stability,
hexagonal
boron
nitride
(hBN),
into
the
organic
PCM
matrices.
While
several
nanomaterials-reinforced
composites,
graphene-based
CPCMs,
been
reviewed
extensively,
however,
there
are
no
critical
reviews
on
performance
BN-enhanced
CPCMs
in
this
literature
review
highlights
comprehensively
summarizes
latest
improvements
BN-filled
a
focus
different
types
BN
allotropes,
including
hBN,
nanoplatelets,
nanosheets
nanotubes.
Moreover,
extensive
discussion
fabrication
processes,
effects
functionalization
porous
scaffolds,
well
applications
fillers
shell
materials.
Specifically,
novel
theoretical
experimental
methodologies
achieving
conductivities
compared.
Additionally,
some
other
fundamental
parameters
associated
properties,
fusion,
cycle
thermal-to-solar
efficiencies
also
discussed.
Finally,
current
challenges
field
BN-incorporated
listed/discussed,
recommendations
future
development
better
properties
cater
needs
provided.
Advanced Functional Materials,
Journal Year:
2022,
Volume and Issue:
32(26)
Published: March 29, 2022
Abstract
The
rapid
development
of
portable
flexible
electronic
devices
means
a
multifunctional
composite
film
with
excellent
thermal
management
capability,
high
electromagnetic
interference
(EMI)
shielding,
and
strong
fire
safety
performance
is
urgently
required.
In
this
paper,
inspired
by
“brick–mortar”
sandwich
structure,
phase
change
capsules
(PCCs)
MXene
nanosheets
are
prepared.
Subsequently,
one‐step
vacuum‐assisted
filtration
method
used
to
fabricate
PCC/MXene/polyvinyl
alcohol
(PMP)
light‐to‐thermal
conversion
efficiency,
Joule
heating
generation,
safety,
EMI
shielding
effects.
superior
preparation
technology
endows
the
multi‐source
driven
capabilities
effectiveness
values
(43.13
dB).
addition,
PMP
exhibits
good
flexibility
enthalpy
(136.8
J
g
−1
).
Surprisingly,
film's
properties
improve
its
reliability
safety.
summary,
simple
technique
outstanding
overall
films
provide
broad
application
prospects
in
advanced
wearable
products.
ACS Applied Materials & Interfaces,
Journal Year:
2022,
Volume and Issue:
14(4), P. 6057 - 6070
Published: Jan. 19, 2022
Multifunctional
phase
change
materials
(PCMs)
are
highly
desirable
for
the
thermal
management
of
miniaturized
and
integrated
electronic
devices.
However,
development
flexible
PCMs
possessing
heat
energy
storage,
shape
memory,
adjustable
electromagnetic
interference
(EMI)
shielding
properties
under
complex
conditions
remains
a
challenge.
Herein,
multifunctional
PCM
composites
were
prepared
by
encapsulating
poly(ethylene
glycol)
(PEG)
into
porous
MXene/silver
nanowire
(AgNW)
hybrid
sponges
vacuum
impregnation.
Melamine
foams
(MFs)
chosen
as
template
to
coat
with
MXene/AgNW
(MA)
construct
continuous
electrical/thermal
conductive
network.
The
MF@MA/PEG
showed
high
latent
(141.3
J/g),
dimension
retention
ratio
(96.8%),
good
electrical
conductivity
(75.3
S/m),
largely
enhanced
(2.6
times
MF/PEG).
Moreover,
triggering
PEG,
displayed
significant
photoinduced
memory
function
fixation
(∼100%)
recovery
(∼100%).
Interestingly,
EMI
effectiveness
(SE)
can
be
adjusted
from
12.4
30.5
dB
facile
compression-recovery
process
based
on
properties.
Furthermore,
finite
element
simulation
was
conducted
emphasize
advantage
in
chips.
Such
light-actuated
functions
exhibit
great
potential
smart
military
aerospace
applications.
Nano-Micro Letters,
Journal Year:
2023,
Volume and Issue:
15(1)
Published: Jan. 9, 2023
Thermal
management
has
become
a
crucial
problem
for
high-power-density
equipment
and
devices.
Phase
change
materials
(PCMs)
have
great
prospects
in
thermal
applications
because
of
their
large
capacity
heat
storage
isothermal
behavior
during
phase
transition.
However,
low
intrinsic
conductivity,
ease
leakage,
lack
flexibility
severely
limit
applications.
Solving
one
these
problems
often
comes
at
the
expense
other
performance
PCMs.
In
this
work,
we
report
core-sheath
structured
nanocomposites
(PCNs)
with
an
aligned
interconnected
boron
nitride
nanosheet
network
by
combining
coaxial
electrospinning,
electrostatic
spraying,
hot-pressing.
The
advanced
PCN
films
exhibit
ultrahigh
conductivity
28.3
W
m-1
K-1
BNNS
loading
(i.e.,
32
wt%),
which
thereby
endows
PCNs
high
enthalpy
(>
101
J
g-1),
outstanding
ductility
40%)
improved
fire
retardancy.
Therefore,
our
strategies
successfully
balance
trade-off
between
flexibility,
Further,
provide
powerful
cooling
solutions
on
5G
base
station
chips
thermoelectric
generators,
displaying
promising
conversion
Energy & Environmental Science,
Journal Year:
2023,
Volume and Issue:
16(3), P. 830 - 861
Published: Jan. 1, 2023
Nanocellulose
is
a
promising
nanomaterial
for
energy
applications
due
to
its
natural
abundance,
superb
properties
and
sustainability.
Here,
nanocellulose-based
composite
phase
change
materials
thermal
storage
are
comprehensively
reviewed.
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
33(33)
Published: May 5, 2023
Abstract
To
remedy
the
drawbacks
of
weak
solar‐thermal
conversion
capability,
low
thermal
conductivity,
and
poor
structural
stability
phase
change
materials,
pyramidal
graphitized
chitosan/graphene
aerogels
(G‐CGAs)
with
numerous
radially
oriented
layers
are
constructed,
in
which
long‐range
radial
alignment
graphene
sheets
is
achieved
by
a
novel
directional‐freezing
strategy.
A
G‐CGA/polyethylene
glycol
composite
exhibits
conductivity
2.90
W
m
−1
K
latent
heat
178.8
J
g
,
achieves
superior
energy
storage
efficiency
90.4%
an
attractive
maximum
temperature
99.7
°C
under
light
intensity
200
mW
cm
−2
.
Inspired
waterlilies,
solar‐responsive
composites
(SPCCs)
designed
for
first
time
assembling
solar‐driven
bilayer
films,
bloom
day
close
night.
The
preservation
effect
films
leads
to
higher
SPCC
longer
period
at
SPCC‐based
solar–thermal–electric
generator
output
voltages
499.2
1034.9
mV
intensities
500
respectively.
Even
after
stopping
solar
irradiation,
voltage
still
occurs
because
release
films.
