Small Methods,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 24, 2025
Abstract
With
their
low
density
and
high
porosity,
aerogels
are
widely
used
as
supporting
frameworks
for
phase
change
materials
(PCMs).
However,
the
host–guest
solid–liquid
phase‐change
systems
often
encounter
difficulties
in
optimizing
balance
between
mechanical
properties
thermal
energy
storage
performance,
intrinsic
advantages
of
not
being
fully
realized.
Herein,
an
aerogel‐functionalization‐PCM
strategy,
a
completely
converse
route
compared
to
traditional
aerogel‐filling‐PCM
method,
toward
lightweight,
flexible
PCM
robust
management
is
developed.
As
proof
concept,
silica
aerogel
particles
(SAPs)
functional
components
added
polyvinyl
alcohol‐polyethylene
glycol
network
produce
composite
PCMs.
The
addition
SAP
reduces
PCM's
latent
heat
by
25%
but
significantly
decreases
heating
rate
190%
enhances
insulation
147%,
achieving
28
°C
temperature
drop
at
80
°C.
This
work
provides
fresh
perspective
on
design
thermally
PCMs
demonstrates
feasibility
enhancing
protection
under
reduced
conditions.
ACS Applied Materials & Interfaces,
Journal Year:
2023,
Volume and Issue:
15(6), P. 8093 - 8104
Published: Feb. 2, 2023
In
order
to
efficiently
exploit
solar-thermal
energy,
it
is
essential
develop
form-stable
phase-change
material
(PCM)
composites
simultaneously
with
superior
storage
efficiency,
excellent
flame
retardancy,
and
improved
thermal
conductivity.
Herein,
phytic
acid
(PA)-modified,
zinc
oxide-deposited,
surface-carbonized
delignified
woods
(PZCDWs)
were
constructed
by
alkaline
boiling,
PA
modification,
ZnO
deposition,
surface
carbonization.
Then,
novel
PCMs
(PZPCMs)
conductivity
fabricated
impregnating
n-docosane
into
PZCDWs
under
vacuum.
The
PZCDW
aerogels
can
well
support
the
overcome
liquid
leakage
owing
their
tension
strong
capillary
force.
Differential
scanning
calorimetry
results
showed
that
PZPCMs
possessed
encapsulation
yield
high
enthalpy
(185.2-213.1
J/g).
Decorating
wood
carbonization
deposition
significantly
conversion
efficiency
(up
86.2%)
(193.3%
increased)
of
PCM
composites.
Furthermore,
introduction
PZPCMs,
peak
heat
release
rate
total
decreased
considerably,
indicating
enhanced
retardancy
PZPCMs.
conclusion,
renewable
wood-based
demonstrate
promising
potential
in
solar
energy
harnessing
modulation
technologies.
