Inorganic Chemistry,
Journal Year:
2022,
Volume and Issue:
61(47), P. 18873 - 18882
Published: Nov. 14, 2022
For
the
advancement
of
laser
technologies
and
optical
engineering,
various
types
new
inorganic
organic
materials
are
emerging.
Metal-organic
frameworks
(MOFs)
reveal
a
promising
use
in
nonlinear
optics,
given
presence
linkers,
metal
cluster
nodes,
possible
delocalization
π-electron
systems.
These
properties
can
be
further
enhanced
by
inclusion
solely
such
as
polyoxometalates
prospective
low-cost
electron-acceptor
species.
In
this
study,
novel
hybrid
nanocomposite,
namely,
SiW12@NU-1000
composed
SiW12
(H4SiW12O40)
Zr-based
MOF
(NU-1000),
was
assembled,
completely
characterized,
thoroughly
investigated
terms
its
(NLO)
performance.
The
third-order
NLO
behavior
developed
system
assessed
Z-scan
measurements
using
532
nm
laser.
effect
two-photon
absorption
self-focusing
significant
both
NU-1000
SiW12@NU-1000.
Experimental
studies
suggested
much
superior
performance
if
compared
to
that
NU-1000,
which
assigned
charge-energy
transfer
between
NU-1000.
Negligible
light
scattering,
good
stability,
facile
postsynthetic
fabrication
method
promote
applicability
nanocomposite
for
optoelectronic
purposes.
This
research
may
thus
open
horizons
improve
enhance
MOF-based
through
compositing
metal-organic
networks
with
molecules
electron
acceptors,
paving
way
generation
applications.
Inorganic Chemistry,
Journal Year:
2022,
Volume and Issue:
61(8), P. 3396 - 3405
Published: Feb. 14, 2022
The
development
of
cost-effective
and
efficient
oxygen
evolution
reaction
(OER)
catalysts
has
found
increasing
popularity
due
to
the
sluggish
kinetics
OER,
which
hampered
H2
production
by
H2O
electrolysis.
In
this
study,
Fe2Ni
MIL-88
(denoted
FeNi)
was
composited
reduced
graphene
oxide
(rGO,
denoted
R).
Owing
high
porosity
abundant
active
sites
bimetallic
MOF,
proper
conductivity
rGO,
synergistic
impact
Ni
Fe,
optimal
composite
(R@FeNi
(1:1))
offered
remarkable
OER
activity
in
alkaline
environments.
obtained
employed
led
a
low
overpotential
264
mV
at
current
density
10
mA
cm-2
with
Tafel
slope
62
dec-1.
Also,
nanorods
grown
on
rGO
reduction
onset
potential
OER.
These
findings
exceeded
results
standard
IrO2-based
catalysts;
they
are
also
comparable
or
even
better
than
previously
reported
MOF-based
catalysts.
ACS Applied Materials & Interfaces,
Journal Year:
2023,
Volume and Issue:
15(31), P. 37300 - 37311
Published: July 27, 2023
The
present
work
focuses
on
the
synthesis
and
properties
of
a
novel
multifunctional
cerium(III)
MOF,
[Ce2(data)3(DMF)4]·DMF
(data2-:
2,5-diaminoterephthalate),
abbreviated
as
NH2-Ce-MUM-2.
Its
crystal
structure
reveals
an
intricate
3D
4,5-connected
framework
with
xah
topology.
This
MOF
features
unique
properties,
such
open
metal
sites,
presence
free
amino
groups,
high
stability.
Two
main
applications
NH2-Ce-MUM-2
were
investigated:
(i)
heterogeneous
catalyst
in
CO2
fixation
into
cyclic
carbonates
(ii)
material
third-order
nonlinear
optical
activity.
As
model
reaction,
cycloaddition
to
propylene
oxide
give
corresponding
carbonate
was
explored
under
mild
conditions,
at
atmospheric
pressure
carbon
dioxide
absence
cocatalyst
added
solvent.
Various
reaction
parameters
investigated
toward
optimization
exploration
substrate
scope,
revealing
up
99%
product
yields
products.
Besides,
is
highly
stable,
permitting
its
recyclability
reusability
further
catalytic
experiments.
significant
contributions
groups
sites
within
this
particularly
considered
when
proposing
potential
mechanism
for
reaction.
Z-Scan
measurements
used
evaluate
(NLO)
various
laser
intensities.
A
two-photon
absorption
(TPA)
greater
incident
intensities
shows
that
might
be
applicable
switching
devices.
self-focusing
effects
highlighted
by
index
refraction
(n2).
By
reporting
characterization
along
promising
NLO
behavior,
current
study
introduces
additional
example
growing
family
metal-organic
frameworks.
