Multifunctional Electromagnetic Responsive Porous Materials Synthesized by Freeze Casting: Principles, Progress, and Prospects
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 12, 2024
Abstract
Freeze
casting
is
a
solidification
technique
utilized
in
the
fabrication
of
porous
materials.
However,
freeze
process
quite
complex,
and
significant
challenges
remain
precisely
controlling
pore
size
shape
structures.
This
study
aims
to
investigate
customization
multifunctional
electromagnetic
wave
(EMW)
absorbers
with
3D
structures
via
casting.
review
initially
presents
fundamental
principles
underlying
examines
correlation
between
internal
external
factors
during
preparation
porosity.
The
emerging
trends
constructing
novel
intricate
macroscopic
through
are
subsequently
outlined.
Furthermore,
this
focuses
on
composites
various
microstructures
low‐dimensional
building
blocks,
their
EMW
response
properties.
By
regulating
influencing
mechanisms
casting,
absorption
materials
exhibit
outstanding
advantages
such
as
property
manipulation,
controllable
structure,
high
porosity,
specific
surface
area,
lightweight,
flexibility.
These
features
broaden
applications
shielding,
mechanical
property,
radar
stealth,
thermal
insulation
fire
prevention,
flexible
sensors,
antifreeze
ability,
etc.
In
addition,
we
discuss
prospects
high‐performance
using
techniques.
Язык: Английский
Assembling halloysite nanotubes in nickel foam with silica fibers as scaffold for efficiently encapsulating phase change materials towards solar-thermal-electric energy conversion and management
Chemical Engineering Journal,
Год журнала:
2025,
Номер
unknown, С. 161681 - 161681
Опубликована: Март 1, 2025
Язык: Английский
Encapsulating phase change materials into melamine formaldehyde sponge assembled with polypyrrole modified halloysite nanotube for effective solar-thermal energy storage and solar-thermal-electric conversion
Journal of Colloid and Interface Science,
Год журнала:
2024,
Номер
682, С. 423 - 435
Опубликована: Ноя. 30, 2024
Язык: Английский
Constructing 2D/2D heterostructure of ZnIn2S4 nanosheets on cobalt doped MoS2 for enhanced photocatalytic hydrogen production performance
Separation and Purification Technology,
Год журнала:
2025,
Номер
unknown, С. 131694 - 131694
Опубликована: Янв. 1, 2025
Язык: Английский
Influence of Halloysite Nanotubes from different deposits on the degradation of organic molecules
Ceramics International,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 1, 2025
Язык: Английский
Synergistic effect of RuNi alloy supported by carbon nanohorns for boosted hydrogen evolution from ammonia borane hydrolysis
Journal of Colloid and Interface Science,
Год журнала:
2025,
Номер
690, С. 137264 - 137264
Опубликована: Март 8, 2025
Язык: Английский
Recent progress on Cobalt‐based Heterogeneous Catalysts for Hydrogen Production from Ammonia Borane
ChemCatChem,
Год журнала:
2024,
Номер
16(23)
Опубликована: Авг. 28, 2024
Abstract
Ammonia
borane
(NH
3
BH
,
AB)
is
a
quintessential
exemplar
of
chemical
hydrogen
storage
materials
and
has
been
widely
used
in
evolution.
Although
expensive
metal
catalysts
(such
as
Rh,
Ru,
Pt,
Ag,
etc.)
exhibit
high
activity
the
hydrolysis
ammonia
borane,
inexpensive
metals
are
more
economical.
Cobalt
(Co),
particular,
not
only
relatively
readily
available,
but
also
possesses
selectivity.
Compared
to
other
catalysts,
cobalt‐based
have
better
durability
can
maintain
catalytic
for
longer
period
time,
making
them
favored
by
researchers.
These
demonstrate
excellent
stability,
evolution
rate,
turn
over
frequency.
This
article
summarized
previous
progress
low
price
precipitation
from
focusing
on
supported
various
supports,
especially
those
carbon
materials,
oxides,
MOFs,
nickel
foams.
The
characteristics
high‐performance
systems
analyzed
detail.
development
prospects
Co
production
were
discussed.
In
summary,
this
review
compiles
types
cobalt
based
recent
years,
identifies
existing
problems
with
these
providing
reference
developers
study
catalysts.
It
believed
that
through
careful
regulation
electronic
spatial
structures
well‐designed
non
precious
will
play
significant
role
decomposition
borane.
Язык: Английский
Decoration of Pt–Ni Alloy on Molten Salt Etched Halloysite Nanotubes for Enhanced Catalytic Reduction of 4-Nitrophenol
Separations,
Год журнала:
2024,
Номер
11(11), С. 305 - 305
Опубликована: Окт. 24, 2024
Efficient
and
low-cost
nanocatalysts
are
extremely
desirable
for
the
catalytic
reduction
of
4-nitrophenol
(4-NP).
A
smaller
nanocatalyst
particle
size
stronger
support
effect
can
significantly
enhance
performance.
Naturally
occurring
halloysite
nanotubes
(HNTs)
promising
alternative
supports
fine
metal
nanoparticles,
but
smooth
surface
single
type
functional
groups
on
HNTs
usually
unfavorable
anchoring
ions.
Herein,
we
modified
using
a
mild
controllable
molten
salt
etching
method
to
create
rough
(rHNTs),
followed
by
loading
Pt–Ni
alloys
prepare
Pt–Ni/rHNTs
4-NP.
The
results
demonstrate
that
ultrafine
alloy
nanoparticles
with
diameter
1.60
nm
uniformly
dispersed
rHNTs.
performance
be
tuned
adjusting
amount
Pt–Ni.
optimized
Pt–Ni/rHNT
(1
wt
%)
reveals
smallest
highest
rate
0.1953
min−1,
which
exceeds
many
Pt–Ni-based
catalysts
in
previous
reports.
This
work
offers
an
ingenious
idea
modification
brilliant
perspective
rational
design
inexpensive
4-NP
nanocatalysts.
Язык: Английский
Synthesis and characterization of Cu@Hal, an effective heterogeneous catalyst for aqueous multicomponent azide‐alkyne [3+2] cycloaddition reactions
ChemNanoMat,
Год журнала:
2024,
Номер
unknown
Опубликована: Авг. 22, 2024
Abstract
The
synthesis
of
a
nanocomposite
material
consisting
Cu
nanoparticles
encapsulated
in
halloysite
nanotubes
(Cu@Hal)
was
achieved
by
the
reduction
Cu(NO
3
)
2
⋅
3H
O
with
sodium
ascorbate/sodium
borohydride
an
aqueous
suspension
trisodium
citrate
and
halloysite.
found
to
be
effective
heterogeneous
catalyst
for
multicomponent
copper
catalyzed
azide‐alkyne
cycloaddition
reaction
(CuAAC).
A
variety
terminal
alkynes
reacted
benzyl
halides
azide
presence
Cu@Hal
water.
In
situ
formation
organic
azides
afforded
corresponding
1,4‐disubstituted
1,2,3‐triazoles
regioselectivily,
excellent
yields.
easily
recovered
recycled
without
loss
activity
low
metal
leaching.
Язык: Английский
Encapsulating Ammonia Borane in Cobalt Decorated Kaolinite Monolith Aerogel for Hydrogen Storage and Controllable Release
ChemSusChem,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 12, 2024
Abstract
Achieving
the
“on‐off”
control
of
hydrogen
release
remains
a
huge
challenge
in
efficiently
harnessing
energy
on
demand.
In
this
work,
controlled
production
strategy
is
proposed.
Hydrogen
carrier
ammonia
borane
(AB)
and
Co
catalyst
are
loaded
into
kaolinite
aerogel
(KA)
to
obtain
composite
AB@Co/KA
monolith.
The
results
show
that
particles
with
surface‐oxidized
species
uniformly
decorated
surface
aerogel,
AB
can
fill
pores
form
storage
material.
generation
modulated
by
tuning
amount
water
added,
which
achieves
an
Co‐modified
KA
(Co/KA)
be
repackaged
multiple
times
for
recycling
use
after
completely
hydrolyzed.
This
work
provides
promising
approach
controlling
neither
input
additional
nor
foreign
reagents
added
reaction
system.
Язык: Английский