Aerogels
are
considered
highly
promising
materials
for
superior
thermal
insulation
across
building,
electric
vehicle,
and
textile
area.
Nevertheless,
the
inherent
deficiency
in
mechanical
compressibility
stability
of
sole
ceramic
aerogels
poses
significant
challenges
to
their
further
application.
The
hybrid
with
an
oriented
cellular
structure
parallel
walls
connected
by
bridges
orthogonal
direction
presented
through
a
physical
process.
fibrous
frames
composed
bacterial
cellulose
constructed
enhanced
montmorillonite
nanosheets
silica
sols
self-assembly
process
achieve
high
(>99%
strain)
robustness
(1.015
MPa),
retaining
97.8%
height
retention
under
considerable
compressive
strain
50%
500
cycles.
Moreover,
demonstrate
remarkable
set
properties,
such
as
being
superlight
(8.85
mg·cm–3
99.39%
porosity),
excellent
insulating
performance
(λ
=
0.0131
W·m–1·K–1),
wide
working
temperature
range
(−196
200
°C),
self-extinguishing,
self-cleaning/hydrophobic
(126.4°
WCA).
successful
synthesis
provides
more
opportunities
design
robust
management.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 4, 2025
Abstract
Aerogels
show
significant
potential
for
subambient
thermal
regulation
in
energy‐efficient
buildings
and
personal
management
under
intense
sunlight
hot
conditions
owing
to
their
unique
combination
of
superinsulation
solar
scattering
characteristics.
However,
traditional
aerogels
encounter
challenges
balancing
mechanical
flexibility
with
high‐temperature
stability.
Herein,
a
straightforward
scalable
cryopolymerization
strategy
is
presented
preparing
superelastic
thermomechanically
robust
silica‐sheathing
nanofibrous
aerogel.
During
cryopolymerization,
cryogenic
create
an
ice
crystal‐constrained
microenvironment
interwoven
cellulose
nanofibers
concentrated
silicate
monomers.
This
confined
promotes
the
situ
condensation
polymerization
high‐concentration
silicates
into
porous
silica
nanoclusters
predominantly
on
nanofiber
surfaces,
resulting
aerogel
composed
bacterial
nanocellulose
cores
encapsulated
by
sheaths.
These
demonstrate
remarkable
elasticity
superinsulation,
maintaining
high
stability
even
after
prolonged
exposure
calcination
at
800
°C
direct
1200
butane
flames.
By
precisely
modulating
mid‐infrared
light,
these
achieve
reflectivity
96.2%
atmospheric
window
emissivity
97.5%
extremely
environments.
Consequently,
parasitic‐heat‐insulating
serve
as
solar‐thermal
regulatory
cooling
materials,
achieving
notable
temperature
reduction
11.4
environments
conditions.
Molecules,
Journal Year:
2025,
Volume and Issue:
30(6), P. 1212 - 1212
Published: March 8, 2025
This
comprehensive
review
explores
silica
aerogels
and
their
application
in
environmental
remediation.
Due
to
rapid
growth
the
consumption
of
energy
water
resources,
purification
contaminated
resources
for
use
by
humankind
should
be
considered
important.
The
primary
objectives
this
are
assess
evolving
landscape
aerogels,
preparation,
drying
techniques,
discuss
main
findings
from
a
wide
range
empirical
studies
theoretical
perspectives.
Based
on
significant
amount
research,
provides
information
about
aerogels’
capabilities
as
an
adsorbent
catalyst.
analysis
spans
variety
contexts
generation
hydrogen
degradation
dyes
employed
industry,
showing
better
performance
implications
point
need
well-informed
policies,
innovative
synthesis
strategies,
ongoing
research
harness
full
potential
management.
Aerogels
are
considered
highly
promising
materials
for
superior
thermal
insulation
across
building,
electric
vehicle,
and
textile
area.
Nevertheless,
the
inherent
deficiency
in
mechanical
compressibility
stability
of
sole
ceramic
aerogels
poses
significant
challenges
to
their
further
application.
The
hybrid
with
an
oriented
cellular
structure
parallel
walls
connected
by
bridges
orthogonal
direction
presented
through
a
physical
process.
fibrous
frames
composed
bacterial
cellulose
constructed
enhanced
montmorillonite
nanosheets
silica
sols
self-assembly
process
achieve
high
(>99%
strain)
robustness
(1.015
MPa),
retaining
97.8%
height
retention
under
considerable
compressive
strain
50%
500
cycles.
Moreover,
demonstrate
remarkable
set
properties,
such
as
being
superlight
(8.85
mg·cm–3
99.39%
porosity),
excellent
insulating
performance
(λ
=
0.0131
W·m–1·K–1),
wide
working
temperature
range
(−196
200
°C),
self-extinguishing,
self-cleaning/hydrophobic
(126.4°
WCA).
successful
synthesis
provides
more
opportunities
design
robust
management.
