Research Square (Research Square),
Год журнала:
2023,
Номер
unknown
Опубликована: Сен. 18, 2023
Abstract
Artificial
muscles
are
soft
actuators
used
to
mimic
human
muscle
movements,
but
using
oxide
ceramics
fabricate
high-modulus
artificial
is
a
challenge
since
they
prone
fracture
during
homochiral
torsion.
Here,
we
report
strategy
of
ceramic
metallization
solve
the
problem
low-shear
and
low-stretchability
coiled
alumina
yarn
with
solenoid
structure.
The
can
carry
objects
0.28
million
times
its
own
weight
provide
high
actuation
stress
483.5
MPa
while
maintaining
large
tensile
stroke
13.5%.
In
addition,
it
shows
contraction
power
18
an
energy
density
240
muscles,
as
well
conversion
efficiency
7.59%
under
electric
drive
mode,
which
far
exceed
most
reported
polymer
carbon
muscles.
This
work
realizes
large-scale
fabrication
Next Nanotechnology,
Год журнала:
2024,
Номер
6, С. 100055 - 100055
Опубликована: Янв. 1, 2024
Dye-induced
water
pollution
is
a
noteworthy
environmental
issue,
mainly
caused
by
industrial
activities
that
utilize
and
release
effluent-containing
dyes,
especially
azo
dyes.
One
frequently
employed
large-scale
technique
for
removing
dyes
from
photocatalysis
degradation.
The
use
of
MXene-based
catalysts
as
an
advanced
material
holds
promise
in
overcoming
the
limitations
inherent
previous
due
to
its
expansive
surface
area
unique
tunable
properties.
potential
integrating
with
nanoparticles
semiconductors
offers
path
enhance
photocatalytic
efficiency,
create
composite
materials,
promote
sustainability,
drive
innovations
purification.
Further
developments
MXene,
including
properties,
functional
groups,
active
sites
tailored
semiconductor
compatibility,
can
maximize
capabilities
semiconductors.
rate
reactions
stands
improve
significantly
MXene's
high
light
absorption
capacity
extensive
nanoporous
structure.
Consequently,
degradation
hold
contribute
more
sustainable
environment,
particularly
treatment.
Nanoscale,
Год журнала:
2024,
Номер
16(25), С. 12248 - 12257
Опубликована: Янв. 1, 2024
The
tensile
brittleness
of
ceramic
nanofibrous
materials
makes
them
unable
to
withstand
the
relatively
large
fracture
strain,
greatly
limiting
their
applications
in
extreme
environments
such
as
high
or
ultra-low
temperatures.
Herein,
highly
stretchable
and
elastic
membranes
composed
titanium
dioxide/silicon
dioxide
(TiO
Abstract
Solar
thermal
collectors
based
on
phase
change
materials
(PCMs)
are
important
to
promote
the
civilian
use
of
sustainable
energy.
However,
simultaneously
achieving
high
photothermal
efficiency
and
rapid
heat
transfer
PCM
carrier
typically
involves
a
proportion
functional
materials,
contradicting
satisfying
energy
storage
density.
In
this
work,
surface‐engineered
anisotropic
MXene‐based
aerogel
(LMXA)
integrated
with
myristic
acid
(MA)
produce
composites
(LMXA‐MA)
is
reported,
in
which
laser‐treated
surface
composed
hierarchically‐structured
TiO
2
/carbon
act
as
light
absorber
improve
solar
absorption
(96.0%),
while
vertical
through‐hole
structure
allows
for
fast
transportation
from
whole.
As
result,
LMXA‐MA
exhibits
outstanding
(192.4
J·g
−1
)
conversion
(93.5%).
Meanwhile,
benefiting
intrinsic
low
emissivity
MXene
material,
radiation
loss
can
be
effectively
suppressed
by
simply
flipping
LMXA‐MA,
enabling
long‐term
temperature
control
ability
(605
s·g
).
The
excellent
property
switchable
dual‐mode
also
endow
it
an
infrared
stealth
function,
maintains
camouflage
more
than
240
s.
This
work
provides
prospective
solution
optimizing
preservation
engineering
structural
design.
Artificial
photocatalysis
is
beneficial
to
carbon
neutrality,
renewable
resources
generation,
and
sustainable
society
development.
Due
the
unique
layered
structure,
abundant
surface
functional
groups,
tunable
electronic
properties,
MXene
emerging
as
a
promising
contender
improve
comprehensive
performance
of
photocatalysts.
Much
progress
has
been
made
in
study
MXene‐based
nanomaterials
over
past
years,
state‐of‐the‐art
advances
rational
design,
controllable
synthesis,
characterization
techniques,
diverse
applications
photocatalysts
have
reviewed.
However,
roles
perspectives
MXenes
less
summarized.
Based
on
analysis
physical/chemical
properties
latest
research
progress,
herein,
multiple
are
discussed
promoting
photocatalysis,
including
carrier
for
active
site
anchoring,
light‐transmitting
media,
mass
transfer
medium,
cocatalyst,
heat
conductor.
In
addition,
current
status
challenges
summarized,
future
directions
well
bottleneck
development
that
need
be
broken
through
also
proposed.
This
review
provides
clear
in‐depth
understanding
their
contributions
photocatalysis.
