Angewandte Chemie International Edition,
Год журнала:
2023,
Номер
63(11)
Опубликована: Дек. 28, 2023
Abstract
Electron‐phonon
interactions,
crucial
in
condensed
matter,
are
rarely
seen
Metal–Organic
Frameworks
(MOFs).
Detecting
these
interactions
typically
involves
analyzing
luminescence
lanthanide‐
or
actinide‐based
compounds.
Prior
studies
on
Ln‐
and
Ac‐based
MOFs
at
high
temperatures
revealed
additional
peaks,
but
were
too
faint
for
thorough
analysis.
In
our
research,
we
fabricated
a
high‐quality,
crystalline
uranium‐based
MOF
(KIT‐U‐1)
thin
film
using
layer‐by‐layer
method.
Under
UV
light,
this
showed
two
distinct
“hot
bands,”
indicating
strong
electron‐phonon
interaction.
At
77
K,
bands
absent,
300
new
emission
band
appeared
with
half
the
intensity
of
main
luminescence.
Surprisingly,
second
hot
emerged
above
320
deviating
from
previous
findings
rare‐earth
We
conducted
detailed
ab‐initio
analysis
employing
time‐dependent
density
functional
theory
to
understand
unusual
behaviour
identify
lattice
vibration
responsible
coupling.
The
KIT‐U‐1
film's
hot‐band
was
then
utilized
create
highly
sensitive,
single‐compound
optical
thermometer.
This
underscores
potential
high‐quality
films
exploiting
unique
lanthanides
actinides
advanced
applications.
Chemical Society Reviews,
Год журнала:
2023,
Номер
52(20), С. 7071 - 7136
Опубликована: Янв. 1, 2023
This
review
highlights
the
film
preparation
methods
and
application
advances
in
memory
neuromorphic
electronics
of
porous
crystalline
materials,
involving
MOFs,
COFs,
HOFs,
zeolites.
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(15)
Опубликована: Янв. 22, 2024
Abstract
Metal‐organic
frameworks
(MOFs)
are
a
specific
class
of
hybrid,
crystalline,
nano‐porous
materials
made
metal‐ion‐based
‘nodes’
and
organic
linkers.
Most
the
studies
on
MOFs
largely
focused
porosity,
chemical
structural
diversity,
gas
sorption,
sensing,
drug
delivery,
catalysis,
separation
applications.
In
contrast,
much
less
reports
paid
attention
to
understanding
tuning
electrical
properties
MOFs.
Poor
conductivity
(~10
−7
–10
−10
S
cm
−1
),
reported
in
earlier
studies,
impeded
their
applications
electronics,
optoelectronics,
renewable
energy
storage.
To
overcome
this
drawback,
MOF
community
has
adopted
several
intriguing
strategies
for
electronic
The
present
review
focuses
creatively
designed
bulk
surface‐anchored
(SURMOFs)
with
different
metal
nodes
(from
transition
metals
lanthanides),
ligand
functionalities,
doping
entities,
allowing
enhancement
conductivity.
Diverse
platforms
MOFs‐based
device
fabrications,
measurements,
underlying
charge
transport
mechanisms
also
addressed.
Overall,
highlights
pros
cons
electronics
(MOFtronics),
followed
by
an
analysis
future
directions
research,
including
optimization
compositions,
heterostructures,
contacts,
stacking,
further
relevant
options
which
can
be
interest
researchers
result
improved
devices
performance.
Chemosensors,
Год журнала:
2025,
Номер
13(1), С. 8 - 8
Опубликована: Янв. 3, 2025
Methane,
a
greenhouse
gas
with
21
times
the
global
warming
potential
of
carbon
dioxide,
is
increasingly
subject
to
stringent
emission
regulations,
driving
demand
for
high-performance
methane
sensors.
This
study
proposes
novel
IR
spectroscopy
technique
based
on
CuBDC-integrated
microcantilever
(CuBDC-microcantilever
spectroscopy)
CH4
sensing,
offering
exceptional
sensitivity
and
selectivity.
The
metal-organic
framework
(MOF)
CuBDC
was
synthesized
using
drop-and-dry
method
facilitated
by
an
intense
pulsed
light
technique.
Characterization
via
scanning
electron
microscopy,
X-ray
diffraction,
Fourier
transform
infrared
confirmed
successful
formation
microcantilever.
CuBDC-microcantilever
demonstrated
significantly
enhanced
sensitivity,
differential
amplitude
at
characteristic
peak
approximately
13
higher
than
that
conventional
Si
Moreover,
limit
detection
determined
be
as
low
14.05
ppm.
clear
separation
from
water
acetone
vapor
peaks
also
emphasized
sensor’s
high
These
findings
highlight
superior
selectivity
proposed
sensor,
positioning
it
promising
platform
in
industrial
environmental
applications.
Applied Surface Science Advances,
Год журнала:
2024,
Номер
21, С. 100607 - 100607
Опубликована: Май 8, 2024
Mg-based
alloys
are
used
in
various
industrial
sectors
due
to
the
unique
combination
of
mechanical
and
biomedical
behaviors.
However,
they
challenging
terms
corrosion
protection
do
not
produce
a
protective
oxide
layer
on
their
surface.
The
unregulated
rate
these
restricts
application.
One
strategies
that
can
provide
coating
prevents
direct
contact
corrosive
media
with
substrates
is
magnesium
its
alloys.
In
recent
years,
MOF‒MOF-containing
coatings
have
been
investigated
as
means
protecting
metal
against
corrosion.
results
show
inhibitors
significantly
reduced
dissolution
by
affecting
kinetics
electrochemical
reactions
greatly
increasing
resistance.
So,
useful
for
resistance
Also,
anti-corrosion
mechanisms
performance
MOFs
matrix
discussed
accordingly.
This
review
article
attempts
highlight
importance
applications
enhancing
Nano Letters,
Год журнала:
2023,
Номер
23(12), С. 5794 - 5801
Опубликована: Июнь 13, 2023
The
potential
of
chiral
metal-organic
frameworks
(MOFs)
for
circularly
polarized
(CP)
optics
has
been
largely
unexplored.
Herein,
we
have
successfully
deposited
monolithic
and
highly
oriented
MOF
thin
films
prepared
by
a
layer-by-layer
method
(referred
to
as
surface-coordinated
films,
SURMOF)
fabricate
CP
photodetection
devices
distinguish
enantiomers.
helicity-sensitive
absorption
induced
pair
enantiopure
SURMOF
was
found
be
excellent,
with
an
anisotropy
factor
reaching
0.41.
Moreover,
the
SURMOFs
exhibited
pronounced
difference
in
uptake
l-
d-tryptophan
To
demonstrate
these
novel
chirality
analysis,
fabricated
portable
sensor
device
that
allows
recognition
monitoring
photocurrent
signals.
Our
findings
not
only
introduce
new
concept
using
building
blocks
realizing
direct
photodetectors
but
also
provide
blueprint
optics.
ACS Sensors,
Год журнала:
2024,
Номер
9(2), С. 622 - 630
Опубликована: Фев. 6, 2024
Metal–organic
frameworks
(MOFs),
with
their
well-defined
and
highly
flexible
nanoporous
architectures,
provide
a
material
platform
ideal
for
fabricating
sensors.
We
demonstrate
that
the
efficacy
specificity
of
detecting
differentiating
volatile
organic
compounds
(VOCs)
can
be
significantly
enhanced
using
range
slightly
varied
MOFs.
These
variations
are
obtained
via
postsynthetic
modification
(PSM)
primary
framework.
alter
original
MOF's
guest
adsorption
affinities
by
incorporating
functional
groups
into
MOF
linkers,
which
yields
subtle
changes
in
responses.
responses
subsequently
evaluated
machine
learning
(ML)
techniques.
Under
severe
conditions,
such
as
high
humidity
acidic
environments,
sensor
stability
lifespan
utmost
importance.
The
UiO-66-X
MOFs
necessary
durability
acidic,
neutral,
basic
environments
pH
values
ranging
from
2
to
11,
thus
surpassing
most
other
similar
materials.
UiO-66-NH2
thin
films
were
deposited
on
quartz-crystal
microbalance
(QCM)
sensors
high-temperature
QCM
liquid
cell
layer-by-layer
pump
method.
Three
different,
stable
surface-anchored
(SURMOFs)
PSM
approach
(X:
NH2,
Cl,
N3)
employed
fabricate
arrays
suitable
electronic
nose
applications.
fabricated
tested
capability
distinguish
between
eight
VOCs.
Data
array
processed
three
distinct
ML
techniques:
linear
discriminant
(LDA),
nearest
neighbor
(k-NN),
neural
network
analysis
methods.
discrimination
accuracies
achieved
nearly
100%
at
concentrations
over
95%
lower
(50–100
ppm).
