Nano-Micro Letters,
Journal Year:
2022,
Volume and Issue:
14(1)
Published: Feb. 5, 2022
Environmentally
friendly
degradable
sensors
with
both
hazardous
gases
and
pressure
efficient
sensing
capabilities
are
highly
desired
for
various
promising
applications,
including
environmental
pollution
monitoring/prevention,
wisdom
medical,
wearable
smart
devices,
artificial
intelligence.
However,
the
transient
gas
based
on
only
identical
material
that
concurrently
meets
above
detection
needs
have
not
been
reported.
Here,
we
present
all-MXene
NO2
employing
three-dimensional
porous
crumpled
MXene
spheres
prepared
by
ultrasonic
spray
pyrolysis
technology
as
layer,
accompanied
water-soluble
polyvinyl
alcohol
substrates
embedded
patterned
electrodes.
The
sensor
achieves
a
ppb-level
of
selective
sensing,
response
up
to
12.11%
at
5
ppm
range
50
ppb-5
ppm,
while
has
an
extremely
wide
linear
0.14-22.22
kPa
fast
time
34
ms.
In
parallel,
can
be
rapidly
degraded
in
medical
H2O2
within
6
h.
This
work
provides
new
avenue
toward
monitoring,
human
physiological
signal
recyclable
electronics.
Advanced Functional Materials,
Journal Year:
2021,
Volume and Issue:
31(13)
Published: Jan. 18, 2021
Abstract
Inspired
by
the
ultralight
and
structurally
robust
spider
webs,
flexible
nanofibril‐assembled
aerogels
with
intriguing
attributes
have
been
designed
for
achieving
promising
performances
in
various
applications.
Here,
conductive
polyimide
nanofiber
(PINF)/MXene
composite
aerogel
typical
“layer‐strut”
bracing
hierarchical
nanofibrous
cellular
structure
has
developed
via
freeze‐drying
thermal
imidization
process.
Benefiting
from
porous
architecture
bonding
between
PINF
MXene,
PINF/MXene
exhibits
an
ultralow
density
(9.98
mg
cm
−3
),
temperature
tolerance
‐50
to
250
°C,
superior
compressibility
recoverability
(up
90%
strain),
excellent
fatigue
resistance
over
1000
cycles.
The
can
be
used
as
a
piezoresistive
sensor,
outstanding
sensing
capacity
up
strain
(corresponding
85.21
kPa),
detection
limit
of
0.5%
0.01
cycles,
stability
reproductivity
extremely
harsh
environments.
Furthermore,
also
oil/water
separation
properties
such
high
adsorption
(55.85
135.29
g
−1
)
stable
recyclability
due
its
hydrophobicity
structure.
It
is
expected
that
supply
new
multifunctional
platform
human
bodily
motion/physical
signals
high‐efficient
separation.
Energy & Environmental Science,
Journal Year:
2021,
Volume and Issue:
14(4), P. 2114 - 2157
Published: Jan. 1, 2021
The
mechanisms,
figures
of
merit,
and
systems
for
wearable
power
generation
are
reviewed
in
this
article.
Future
perspectives
lie
breakthrough
technologies
fiber
electronics,
fully
printable,
flexible
SoC,
IoT-enabled
self-awareness
systems.
InfoMat,
Journal Year:
2022,
Volume and Issue:
4(4)
Published: Feb. 22, 2022
Abstract
Wearable
electronics
offer
incredible
benefits
in
mobile
healthcare
monitoring,
sensing,
portable
energy
harvesting
and
storage,
human‐machine
interactions,
etc.,
due
to
the
evolution
of
rigid
structure
flexible
stretchable
devices.
Lately,
transition
metal
carbides
nitrides
(MXenes)
are
highly
regarded
as
a
group
thriving
two‐dimensional
nanomaterials
extraordinary
building
blocks
for
emerging
platforms
because
their
excellent
electrical
conductivity,
enriched
surface
functionalities,
large
area.
This
article
reviews
most
recent
developments
MXene‐enabled
wearable
electronics.
Several
electronic
devices
designed
on
nanometric
scale
highlighted
by
drawing
attention
widely
developed
nonstructural
attributes,
including
3D
configured
devices,
textile
planer
substrates,
bioinspired
structures,
printed
materials.
Furthermore,
unique
progress
these
nanodevices
is
representative
applications
healthcare,
energy,
electromagnetic
interference
(EMI)
shielding,
humanoid
control
machines.
The
prospects
MXene
key
frontier
next‐generation
envisioned
design
challenges
systems
also
discussed,
followed
proposed
solutions.
image
Advanced Materials,
Journal Year:
2022,
Volume and Issue:
34(52)
Published: March 15, 2022
Abstract
Flexible
pressure
sensors
are
one
of
the
most
important
components
in
fields
electronic
skin
(e‐skin),
robotics,
and
health
monitoring.
However,
application
practice
is
still
difficult
expensive
due
to
limited
sensing
properties
complex
manufacturing
process.
The
emergence
MXene,
a
red‐hot
member
2D
nanomaterials,
has
brought
brand‐new
breakthrough
for
sensing.
Ti
3
C
2
T
x
popular
studied
MXene
field
shows
good
mechanical,
electrical
properties,
excellent
hydrophilicity,
extensive
modifiability.
It
will
ameliorate
sensitive
layer
electrode
sensor,
further
apply
many
fields,
such
as
e‐skin
flexibility.
Herein,
preparation
technologies,
antioxidant
methods,
summarized.
design
MXene‐based
microstructures
introduced,
including
hydrogels,
aerogels,
foam,
fabrics,
composite
nanofibers.
mechanisms
broached,
piezoresistive,
capacitive,
piezoelectric,
triboelectric,
potentiometric
transduction
mechanism.
Moreover,
integration
multiple
devices
reviewed.
Finally,
chance
challenge
improved
by
smart
materials
future
Internet
Things
prospected.
Nano-Micro Letters,
Journal Year:
2021,
Volume and Issue:
13(1)
Published: June 11, 2021
The
iontronic
pressure
sensor
achieved
an
ultrahigh
sensitivity
(Smin
>
200
kPa-1,
Smax
45,000
kPa-1).
exhibited
a
broad
sensing
range
of
over
1.4
MPa.
Pseudocapacitive
using
MXene
was
proposed.
Flexible
sensors
are
unprecedentedly
studied
on
monitoring
human
physical
activities
and
robotics.
Simultaneously,
improving
the
response
flexible
is
great
challenge,
which
hinders
devices'
practical
application.
Targeting
this
obstacle,
we
developed
Ti3C2Tx-derived
(TIPS)
by
taking
advantages
high
intercalation
pseudocapacitance
under
rationally
designed
structural
configuration.
TIPS
kPa-1)
in
MPa
low
limit
detection
20
Pa
as
well
stable
long-term
working
durability
for
10,000
cycles.
application
activity
robot
manifested
its
versatile
potential.
This
study
provides
demonstration
exploring
pseudocapacitive
materials
building
with
to
advance
development
high-performance
wearable
electronics.
