ACS Applied Materials & Interfaces,
Journal Year:
2023,
Volume and Issue:
15(29), P. 35391 - 35399
Published: July 12, 2023
In
the
present
work,
some
non-van
der
Waals
(non-vdW)
2D
materials,
namely,
hematene
and
magnetene
nanoplatelets,
were
synthesized
starting
from
hematite
magnetite
ores,
respectively,
using
a
green
synthesis
method,
they
dispersed
in
water.
Then,
their
ultrafast
nonlinear
optical
(NLO)
response
was
studied
under
50
fs,
400
nm
laser
excitation.
Both
non-vdW
materials
revealed
strong
saturable
absorption
with
NLO
coefficient
β,
intensity,
modulation
depth
of
about
-33.2
×
10-15
m/W,
320
GW/cm2,
19%,
for
hematene,
-21.4
500
17%
magnetene.
These
values
are
comparable
to
those
other
vdW
such
as
graphene,
transition
metal
dichalcogenides
(TMDs)
like
MoS2,
WS2,
MoSe2,
black
phosphorus
(BP),
MXenes
(Ti3C2Tx),
recently
reported
efficient
absorbers.
addition,
both
dispersions
displayed
Kerr
type
refraction
refractive
index
parameters
γ'
even
larger
than
van
materials.
all
cases,
found
exhibiting
significantly
nonlinearities
magnetene,
most
probably
due
formation
more
charge
transfer
system.
The
results
work
strongly
suggesting
that
can
have
applications
wide
range
photonic
optoelectronic
applications.
Precision Chemistry,
Journal Year:
2024,
Volume and Issue:
2(7), P. 300 - 329
Published: March 29, 2024
The
electrochemical
properties
of
2D
materials,
particularly
transition
metal
dichalcogenides
(TMDs),
hinge
on
their
structural
and
chemical
characteristics.
To
be
practically
viable,
achieving
large-scale,
high-yield
production
is
crucial,
ensuring
both
quality
suitability
for
applications
in
energy
storage,
electrocatalysis,
potential-based
ionic
sieving
membranes.
A
prerequisite
success
a
deep
understanding
the
synthesis
process,
forming
critical
link
between
materials
performance.
This
review
extensively
examines
liquid-phase
exfoliation
technique,
providing
insights
into
potential
advancements
strategies
to
optimize
TMDs
nanosheet
yield
while
preserving
attributes.
primary
goal
compile
techniques
enhancing
through
direct
exfoliation,
considering
parameters
like
solvents,
surfactants,
centrifugation,
sonication
dynamics.
Beyond
addressing
yield,
emphasizes
impact
these
TMD
nanosheets,
highlighting
pivotal
role
applications.
Acknowledging
evolving
research
methodologies,
explores
integrating
machine
learning
data
science
as
tools
relationships
key
Envisioned
advance
material
research,
including
optimization
graphene,
MXenes,
applications,
this
compilation
charts
course
toward
data-driven
techniques.
By
bridging
experimental
approaches,
it
promises
reshape
landscape
knowledge
electrochemistry,
offering
transformative
resource
academic
community.
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
33(19)
Published: March 17, 2023
Abstract
The
development
of
advanced
electrode
materials
for
the
next
generation
electrochemical
energy
storage
(EES)
solutions
has
attracted
profound
research
attention
as
a
key
enabling
technology
toward
decarbonization
and
electrification
transportation.
Since
discovery
graphene's
remarkable
properties,
2D
nanomaterials,
derivatives,
heterostructures
thereof,
have
emerged
some
most
promising
components
in
batteries
supercapacitors
owing
to
their
unique
tunable
physical,
chemical,
electronic
commonly
not
observed
3D
counterparts.
This
review
particularly
focuses
on
recent
advances
EES
technologies
related
crystals
originating
from
non‐layered
solids
(non‐van
der
Waals;
nvdW)
hallmark
features
pertaining
this
field
application.
Emphasis
is
given
methods
challenges
top‐down
bottom‐up
strategies
nvdW
sheets
influence
materials’
features,
such
charge
transport
functionalization,
or
adsorption
dynamics.
exciting
2D‐based
different
compositions
mechanisms
operation
are
discussed.
Finally,
opportunities
systems
highlighted
only
but
also
other
applications,
including
spintronics,
magnetism,
catalysis.
Heliyon,
Journal Year:
2024,
Volume and Issue:
10(3), P. e24964 - e24964
Published: Jan. 26, 2024
2D
nanosheets
produced
using
liquid
phase
exfoliation
method
offers
scalable
and
cost
effective
routes
to
optoelectronics
devices.
But
this
technique
sometimes
yields
high
defect,
low
stability,
compromised
electronic
properties.
In
work,
we
employed
an
innovative
approach
that
improved
the
existing
for
fabricating
MoS2/graphene
heterostructure-based
photodetector
with
enhanced
optoelectronic
This
involves
hydrothermally
treating
MoS2
before
dispersing
it
in
a
carefully
chosen
environmentally
friendly
IPA/water
solvent
ultrasonication
through
optomechanical
approach.
Thereafter,
heterostructure
of
graphene
were
formed
sequential
deposition
fabrication
vertical
heterojunctions.
Furthermore,
achieved
vertically
stacked
bare
photodetector.
The
hybrid
characterized
spectroscopic
microscopic
techniques.
results
obtained
show
size
is
between
350
500
nm
on
average,
their
thickness
less
than
or
equal
5
nm,
crystallinity
2H
semiconducting
phase.
photocurrent,
photoresponsivity,
external
quantum
efficiency
(EQE),
specific
detectivity
at
4
V
bias
voltage
650
illumination
wavelength
3.55
μA,
39.44
mA/W,
7.54
%,
2.02
×
1010
Jones,
respectively,
are
0.55
6.11
1.16
3.4
109
Jones.
presented
indicate
photoresponse
performances
as-prepared
greatly
(about
7-fold)
compared
sole
MoS2.
Again,
fabricated
work
better
characteristics
as
similar
prepared
conventional
solution
processed
method.
provide
modest,
inexpensive,
efficient
fabricate
heterojunctions
performance.
The Journal of Physical Chemistry C,
Journal Year:
2024,
Volume and Issue:
128(9), P. 4104 - 4110
Published: Feb. 27, 2024
Liquid
phase
exfoliation
(LPE)
of
non-van
der
Waals
materials
has
added
a
new
feature
to
the
research
frontier
two-dimensional
materials.
However,
these
LPE
reports
mostly
focus
on
structures
sheets.
The
information
and
insights
into
their
local
electronic
properties
are
often
missing.
In
this
first
such
report,
using
atomic-scale
characterization
theoretical
calculations,
we
discuss
adsorption
borophene
Au(111)
identify
adsorbed
be
β12
phase.
It
is
seen
metallic
as
opposed
insulating
bulk
boron.
Our
results
demonstrate
an
efficient,
low-cost,
scalable
alternative
in
realizing
substrate-supported
borophene,
significant
step
for
engineering
applications
boron-based
Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: Jan. 11, 2025
Kaolinite
is
a
single
2D
layer
of
kaolin
or
metakaolin
(MK),
common
clays
that
can
be
characterized
as
layered
3D
materials.
We
show
because
its
chemical
composition,
kaolinite
converted
into
an
amorphous
material
by
means.
This
dimensional
transformation
possible
due
to
the
large
surface
volume
ratio
and
reactivity
kaolinite.
investigate
formation
influence
quasi-
nanocrystalline
phases
in
MK-based
alkali-activated
materials
(AAM)
are
related
Si/Al
ratio.
analyze
AAM
from
MK
precursor,
which
bonded
network
preserves
structure
at
nanometer
scale.
also
exfoliate
remaining
phase
examine
effects
alkali-activation
final
sheet
structures
embedded
within
network.
The
used
cement
with
no
carbon
dioxide
produced
reaction.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 14, 2025
Abstract
Gallium
(Ga)
liquid
metal
has
become
highly
suitable
for
the
preparation
of
2D
materials
due
to
its
unique
physical
and
chemical
properties,
such
as
high
surface
tension,
low‐melting‐point,
ease
oxidization.
Ga
a
very
low
melting
point
becomes
silver‐white
at
29.76
°C.
In
air,
can
spontaneously
undergo
Cabrera‐Mott
oxidation
reaction
form
an
ultra‐thin
oxide
layer.
This
self‐formed
layer
is
considered
natural
material,
other
be
derived
by
post‐processing
recent
years,
advancements
in
techniques
have
led
successful
various
Ga‐based
materials.
These
possess
electronic
optical
properties
along
with
simple,
low‐cost
process,
offering
broad
potential
advancing
new
devices.
review
examines
research
on
from
alloys.
It
discusses
applications
different
kinds
devices
across
multiple
fields.
Therefore,
it
expected
that
will
play
more
significant
role
development
material
science
future.
