As
the
age
of
Internet
Things
(IoTs)
unfolds,
along
with
rapid
advancement
artificial
intelligence
(AI),
traditional
von
Neumann-based
computing
systems
encounter
significant
challenges
in
handling
vast
amounts
data
storage
and
processing.
Bioinspired
neuromorphic
strategies
offer
a
promising
solution,
characterized
by
features
in-memory
computing,
massively
parallel
processing,
event-driven
operations.
Compared
to
rigid
silicon-based
devices,
flexible
devices
are
lightweight,
thin,
highly
stretchable,
garnering
considerable
attention.
Among
materials
utilized
these
transition
metal
carbides/nitrides
(MXenes)
particularly
noteworthy
their
excellent
flexibility,
exceptional
conductivity,
hydrophilicity,
which
confer
remarkable
properties
upon
devices.
Herein,
comprehensive
discussion
is
provided
on
applications
MXenes
memory
This
review
covers
basic
principles
device
structures
common
parameters
emerging
as
well
synthesis,
functionalization
methods,
distinct
MXenes.
The
remaining
future
opportunities
relevant
also
presented.
can
serve
valuable
reference
lay
cornerstone
for
practical
feasible
implementation
technologies.
Abstract
MXene
emerged
as
decent
2D
material
and
has
been
exploited
for
numerous
applications
in
the
last
decade.
The
remunerations
of
ideal
metallic
conductivity,
optical
absorbance,
mechanical
stability,
higher
heterogeneous
electron
transfer
rate,
good
redox
capability
have
made
a
potential
candidate
biosensing
applications.
hydrophilic
nature,
biocompatibility,
antifouling,
anti‐toxicity
properties
opened
avenues
to
perform
vitro
vivo
analysis.
In
this
review,
concept,
operating
principle,
detailed
mechanism,
characteristic
are
comprehensively
assessed
compiled
along
with
breakthroughs
fabrication
conjugation
strategies
development
unique
electrochemical
biosensors.
Further,
current
challenges
summarized
suggested
future
aspects.
This
review
article
is
believed
shed
some
light
on
will
open
new
opportunities
advanced
translational
application
bioassays.
EcoEnergy,
Год журнала:
2023,
Номер
1(2), С. 344 - 374
Опубликована: Дек. 1, 2023
Abstract
Extensive
consumption
of
limited
fossil
fuel
resources
generates
serious
environmental
problems,
such
as
release
large
amounts
the
greenhouse
gas
CO
2
.
It
is,
therefore,
urgently
necessary
to
look
for
alternative
energy
meet
increasing
demands.
Hydrogen
is
a
clean,
environmentally
friendly,
and
sustainable
source.
Electrochemical
water
splitting
one
cleanest
greenest
technologies
available
hydrogen
production.
Unfortunately,
large‐scale
electrolysis
hindered
by
high
costs
catalysts,
since
noble
metal‐based
materials
have
been
demonstrated
be
best
catalysts
(e.g.,
Pt
cathode
Ru/Ir‐oxide
anode
catalyst).
Recently,
transition
metal
carbides
(TMCs)
drawn
significant
attention
use
in
electrochemical
splitting,
especially
evolution
reactions,
owing
their
intrinsic
catalytic
activities,
extraordinary
electrical
conductivities,
abundant
source
materials.
TMCs
exhibit
Pt‐like
electronic
structures
are
considered
suitable
alternatives
Pt.
This
review
systematically
summarizes
recent
advances
uses
representative
oxygen
reactions
highlights
advantages
electrocatalytic
effects
provided
nanostructuring.
Finally,
existing
challenges
future
perspectives
these
electrocatalysts
discussed.
Chemical Science,
Год журнала:
2023,
Номер
14(36), С. 9854 - 9862
Опубликована: Янв. 1, 2023
Two-dimensional
(2D)
Pd
nanosheet-based
catalysts
have
recently
garnered
widespread
attention
due
to
their
high
atom
utilization
efficiency.
However,
catalytic
ability
and
structural
stability
still
require
significant
enhancement
before
they
can
be
widely
applied.
In
this
study,
we
presented
the
rational
design
controllable
fabrication
of
a
novel
2D/2D
heterojunction,
which
consists
ultrathin
nanosheets
(NSs)
grown
on
Ti3C2Tx
MXene
surface
(Pd
NSs/MXene).
This
heterostructure
was
achieved
through
robust
convenient
stereo-assembly
strategy.
The
newly
developed
NSs/MXene
heterojunction
not
only
provides
numerous
exposed
active
atoms
with
an
optimized
electronic
structure
but
also
enables
intimate
Pd/MXene
interfacial
interaction,
ensuring
stable
hybrid
configuration.
Consequently,
resulting
exhibits
exceptional
methanol
oxidation
properties.
It
possesses
large
electrochemically
area,
mass
specific
activities,
long
operating
life,
are
significantly
superior
those
traditional
nanoparticle/carbon
nanosheet/carbon
catalysts.
Theoretical
simulations
further
reveal
strong
interactions
between
nanosheet
MXene,
dramatically
enhance
adsorption
energy
component
simultaneously
lower
its
d-band
center.
As
result,
is
less
susceptible
CO
poisoning.
work
introduces
new
based
noble
metallic
materials
holds
significance
for
development
other
heterojunctions,
particularly
within
realm
2D
material
nanoarchitectonics.
ACS Nano,
Год журнала:
2024,
Номер
18(5), С. 4256 - 4268
Опубликована: Янв. 24, 2024
Dual-atom
catalytic
sites
on
conductive
substrates
offer
a
promising
opportunity
for
accelerating
the
kinetics
of
multistep
hydrogen
and
oxygen
evolution
reactions
(HER
OER,
respectively).
Using
MXenes
as
is
strategy
depositing
those
dual-atom
electrocatalysts,
if
efficient
surface
anchoring
ensuring
metal-substrate
interactions
sufficient
mass
loading
established.
We
introduce
surface-modification
MXene
by
preadsorbing
L-tryptophan
molecules,
which
enabled
attachment
Co/Ni
electrocatalyst
at
Ti3C2Tx
forming
N–Co/Ni-O
bonds,
with
reaching
high
5.6
wt
%.
The
electron
delocalization
resulting
from
terminated
O
atoms
substrates,
N
in
moieties,
metal
Co
Ni
provides
an
optimal
adsorption
strength
intermediates
boosts
HER
OER
kinetics,
thereby
notably
promoting
intrinsic
activity
electrocatalyst.
CoNi-Ti3C2Tx
displayed
overpotentials
31
241
mV
10
mA
cm–2,
respectively.
Importantly,
also
exhibited
operational
stability
both
over
100
h
industrially
relevant
current
density
500
cm–2.
Our
study
provided
guidance
constructing
active
to
synergistically
enhance
electrochemical
efficiency
energy
conversion
storage
systems.
