Chemistry of Materials,
Год журнала:
2024,
Номер
36(17), С. 8300 - 8310
Опубликована: Авг. 23, 2024
To
enable
the
design
and
manufacturing
of
hierarchical
nanomaterial
architectures,
there
is
a
need
for
synthesis
processing
methods
that
can
tunable
geometric
control
at
nanoscale
while
maintaining
conformality
on
complex
3-D
templates.
In
this
study,
we
explore
programmable
vertically
oriented
Zn–Al
layered
double
hydroxide
(LDH)
nanosheet
arrays
using
atomic
layer
deposition
(ALD)
to
deposit
seed
Al2O3,
which
subsequently
consumed
converted
into
LDH
phase
under
hydrothermal
growth
conditions.
We
demonstrate
over
spacing
length
nanosheets
by
varying
thickness
initial
ALD
with
subnanometer
precision.
This
be
viewed
as
titration
reaction,
where
Al
acts
limiting
reagent
during
nanosheets.
Elemental
mapping
demonstrates
dynamic
evolution
resulting
morphology,
driven
surface
diffusion
nucleation
processes.
The
conformal
nature
allows
variety
nonplanar
substrate
geometries,
including
microposts,
paper
fibers,
porous
ceramic
supports.
illustrates
power
bottom-up
nanoarchitectures
geometries
controlling
in
subsequent
solution
reactions.
Dalton Transactions,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
MIL-100(Fe)/TiO
2
/CoO
x
was
synthesized
through
a
facile
microwave-assisted
hydrothermal
method
followed
by
atomic
layer
deposition
and
exhibits
exceptional
photocatalytic
OER
performance.
Accounts of Chemical Research,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 21, 2025
ConspectusThe
ability
to
synthesize
nanoarchitected
materials
with
tunable
geometries
provides
a
means
control
their
functional
properties,
applications
in
biological,
environmental,
and
energy
fields.
To
this
end,
various
bottom-up
top-down
synthesis
processes
have
been
developed.
However,
many
of
these
require
prepatterning
or
etching
steps,
making
them
challenging
scale-up
complex,
nonplanar
substrates.
Furthermore,
the
integrate
nanomaterials
into
hierarchical
arrays
precise
feature
spacing
orientation
remains
challenge.One
approach
overcome
patterning
challenges
is
use
surface
modification
layers
guide
resulting
geometry
nanomaterial
architectures
grown
from
substrate.
A
powerful
strategy
accomplish
what
we
will
refer
as
"surface-directed
assembly,"
where
geometric
parameters
(feature
size,
shape,
orientation)
are
predetermined
by
initial
layer.
In
particular,
Atomic
Layer
Deposition
(ALD)
form
layer,
followed
solution-based
growth
processes,
has
architected
structures
on
surfaces.Over
past
decade,
reported
series
studies
surface-directed
assembly
used
ZnO
nanowires
(NWs)
top
variety
case,
thin
film
deposited
onto
substrate
using
ALD,
which
can
NW
diameter,
spacing,
angular
respect
controlling
epitaxial
relationships.
shown
that
depositing
submonolayer
overcoat
secondary
material
(e.g.,
amorphous
TiO2),
nucleation
sites
partially
blocked,
further
tune
between
while
minimizing
changes
other
properties.
This
be
generate
multilevel
structures,
such
hyperbranched
each
level
hierarchy
ALD.
Finally,
demonstrated
scaled-up
curved,
highlights
power
ALD
conformally
uniformly
deposit
seed
complex
substrates
subnanometer
precision.To
complement
seeded
hydrothermal
approaches,
expanded
include
conversion
chemistry
layers.
For
example,
replacing
Al2O3
layer
without
changing
conditions,
Al-Zn
layered-double
hydroxide
nanosheets
formed
instead
nanowires.
another
example
chemistry,
solution
anion-exchange
process
was
incorporate
sulfur
metal
oxide
films.
both
properties
enabled
tuning
nanostructure
geometry.In
Account,
describe
diverse
systems,
over
composition.
We
show
how
approaches
for
range
applications,
including
superomniphobic
surfaces,
antibiofouling
coatings,
photocatalysis.
conclude
an
outlook
combination
enable
future
directions
scalable
nanomanufacturing
limitations
traditional
approaches.
The Journal of Physical Chemistry Letters,
Год журнала:
2024,
Номер
15(13), С. 3486 - 3492
Опубликована: Март 21, 2024
Atomic-level
modulation
of
the
metal–oxide
interface
is
considered
an
effective
approach
to
optimize
electronic
structure
and
catalytic
activity
metal
catalysts
but
remains
highly
challenging.
Here,
we
employ
atomic
layer
deposition
(ALD)
technique
together
with
a
heteroatom
doping
strategy
effectively
tailor
metal–support
interaction
(EMSI)
at
on
level,
thereby
achieving
high
hydrogen
evolution
performance
Pt
utilization.
Theoretical
calculations
reveal
that
N
atoms
in
Co3O4
significantly
adjusts
EMSI
between
Pt-Co3O4
interfaces
and,
consequently,
alters
d-band
center
optimizes
adsorption/desorption
reaction
intermediates.
This
work
sheds
light
atomic-level
regulation
mechanistic
understanding
metal–oxide,
while
providing
guidance
for
development
advanced
electrocatalysts
various
future
energy
applications.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 23, 2025
Abstract
Electrospun
micro/nanofibers
have
gained
popularity
recently
for
nanogenerators
owing
to
their
advantages
of
portability,
compatibility,
breathability,
mechanical
flexibility,
and
function
integrability,
etc.
These
merits
offer
unprecedented
micro/nanostructure
adjustment
versatility.
With
the
rapid
advancements
Internet
Things
(IoT)
micro/nano
technology,
developments
electrospun‐based
with
extra‐high
performance,
low
cost,
widely
applicable
are
significant
satisfying
urgent
demand
efficient
energy
sources.
To
accelerate
process,
this
paper
provides
a
comprehensive
analysis
advantages,
preparation
processes,
classifications,
enhancement
strategies
concerning
through
systematically
reviewing
current
related
literature.
Initially,
electrospinning
preparing
briefly
concluded.
Then,
unique
characteristics
various
types
elaborated.
Furthermore,
enhance
performance
versatility
discussed,
focusing
on
materials
construction,
structure
design,
functionalization
assisted
pre/post‐treatment.
Finally,
challenges
coping
addressed,
providing
future
research
interests
next
generation
nanogenerators.
