Journal of Saudi Chemical Society,
Journal Year:
2024,
Volume and Issue:
28(2), P. 101817 - 101817
Published: Jan. 29, 2024
Eight
new
transition-based
coordination
compounds
were
hydrothermally
fabricated
using
metal
chlorides
(M
=
Co(II),
Ni(II),
Mn(II),
Zn(II)
and
Cd(II))
with
main
ligand
4′-(carboxymethoxy)-[1,1′-biphenyl]-4-carboxylic
acid
(H2cbca)
as
well
coligands
(phen:
1,10-phenanthroline;
2,2′-bipy:
2,2′-bipyridine;
4,4′-bipy:
4,4′-bipyridine
or
dpe:
1,2-di(4-pyridyl)ethane).
The
successful
synthesis
obtained
one
0D
dimer,
three
1D
four
2D
polymers,
formulated
[Cd(μ3-cbca)(H2O)]n
(1),
[Zn(μ-cbca)(phen)]n
(2),
[Mn(μ3-cbca)(phen)(H2O)]n
(3),
[Cd(μ3-cbca)(2,2′-bipy)]n
(4),
[Co(µ-cbca)(μ-4,4′-bipy)(H2O)2]n
(5),
[Co(μ3-cbca)2(μ-dpe)0.5(H2O)]n
(6),
[Ni2(cbca)2(μ-dpe)(H2O)8]
(7),
[Zn(μ3-cbca)(μ-dpe)0.5(H2O)]n
(8).
Comprehensive
characterisations
performed
through
standard
methods.
Topological
types
catalytic
performance
of
these
researched.
Especially,
polymer
2
serves
a
stable,
highly
effective,
recyclable
heterogeneous
catalyst
for
the
Knoevenagel
condensation
cyanosilylation
benzaldehydes,
giving
high
product
yields
(up
to
100
%)
under
optimized
conditions.
Various
reaction
parameters,
substrate
scope,
recycling
also
studied.
present
work
explores
application
H2cbca
flexible
dicarboxylate
linker
preparation
functional
polymers.
Polymers,
Journal Year:
2021,
Volume and Issue:
13(18), P. 3064 - 3064
Published: Sept. 10, 2021
The
study
of
the
electrochemical
catalyst
conversion
renewable
electricity
and
carbon
oxides
into
chemical
fuels
attracts
a
great
deal
attention
by
different
researchers.
main
role
this
process
is
in
mitigating
worldwide
energy
crisis
through
closed
technological
cycle,
where
fuels,
such
as
hydrogen,
are
stored
reconverted
to
via
reaction
processes
fuel
cells.
scientific
community
focuses
its
efforts
on
development
high-performance
polymeric
membranes
together
with
nanomaterials
high
catalytic
activity
stability
order
reduce
platinum
group
metal
applied
cathode
build
stacks
proton
exchange
membrane
cells
(PEMFCs)
work
at
low
moderate
temperatures.
design
new
conductive
nanoparticles
(NPs)
whose
morphology
directly
affects
their
properties
utmost
importance.
Nanoparticle
morphologies,
like
cubes,
octahedrons,
icosahedrons,
bipyramids,
plates,
polyhedrons,
among
others,
widely
studied
for
catalysis
applications.
recent
progress
around
has
focused
stabilizing
agents
potential
impact
nanomaterial
synthesis
induce
changes
NPs.
Chemical Reviews,
Journal Year:
2023,
Volume and Issue:
123(10), P. 6545 - 6611
Published: May 15, 2023
The
modularity
and
synthetic
flexibility
of
metal-organic
frameworks
(MOFs)
have
provoked
analogies
with
enzymes,
even
the
term
MOFzymes
has
been
coined.
In
this
review,
we
focus
on
molecular
catalysis
energy
relevance
in
MOFs,
more
specifically
water
oxidation,
oxygen
carbon
dioxide
reduction,
as
well
hydrogen
evolution
context
MOF-enzyme
analogy.
Similar
to
catalyst
encapsulation
MOFs
leads
structural
stabilization
under
turnover
conditions,
while
motifs
that
are
synthetically
out
reach
a
homogeneous
solution
phase
may
be
attainable
secondary
building
units
MOFs.
Exploring
unique
possibilities
specific
groups
second
third
coordination
sphere
around
catalytic
active
site
incorporated
facilitate
catalysis.
A
key
difference
between
enzymes
is
fact
concentrations
latter
often
considerably
higher,
leading
charge
mass
transport
limitations
severe
than
those
enzymes.
High
also
put
limit
distance
catalysts,
thus
available
space
for
higher
engineering.
As
important
MOF-borne
catalysis,
system
perspective
chosen
highlight
concepts
address
issue.
detailed
section
light-driven
reactivity
sets
stage
concise
review
currently
literature
utilizing
principles
from
Nature
design
preparation
MOF-based
materials.
Chemical Society Reviews,
Journal Year:
2024,
Volume and Issue:
53(12), P. 6244 - 6294
Published: Jan. 1, 2024
This
review
highlights
the
promising
prospects
of
defective
zirconium-based
MOFs
in
addressing
challenging
energy-
and
environment-related
problems,
positioning
them
as
versatile
tools
toward
a
cleaner
more
sustainable
future.
ACS Sustainable Chemistry & Engineering,
Journal Year:
2021,
Volume and Issue:
9(5), P. 2319 - 2325
Published: Jan. 25, 2021
Metal–organic
framework
(MOFs)
films
have
a
wide
range
of
applications
in
gas
separation
and
chemical
sensing.
By
contrast,
MOF
rarely
been
reported
the
field
photocatalysis.
Compared
with
crystalline
powders,
photocatalysis
can
surmount
defects
agglomeration,
light
scattering,
poor
recyclability.
The
preparation
suitable
for
high-efficiency
photocatalytic
CO2
reduction
is
currently
research
focus.
Herein,
we
successfully
prepared
zirconium-based
particles
on
PET
(polyethylene
terephthalate)
fiber
textiles
(denoted
as
PET@NH2-UiO-66
film)
by
straightforward
hydrothermal
method
investigated
visible-light-driven
overall
CO2.
powder
X-ray
diffraction
scanning
electron
microscopy
images
demonstrate
that
NH2-UiO-66
grew
well
textiles.
performance
film
was
studied
gas–solid
pure
water
systems
without
sacrificial
agents.
results
show
has
excellent
activity,
reusability
better
than
powder.
measuring
photocurrent
response
electrochemical
impedance
spectroscopy,
electron–hole
pairs
separate
rapidly.
Moreover,
possible
mechanism
photoreduction
proposed.
This
work
provides
simple
strategy
to
design
flexible
stable
efficient
Inorganic Chemistry,
Journal Year:
2022,
Volume and Issue:
61(12), P. 4938 - 4947
Published: March 11, 2022
Attracted
by
the
exceptional
structural
rigidity
and
inherent
porous
structures
of
Hf-based
metal-organic
frameworks
(MOFs),
we
adopted
a
rapid
synthesis
approach
to
preparing
three
nanoscale
MOFs,
Hf-UiO-66
(1),
Hf-UiO-66-(OH)2
(2),
Hf-UiO-66-NH2
(3),
systematically
explored
water-assisted
proton
conductivities
original
ones
post-modified
products.
Interestingly,
(σ)
all
MOFs
exhibit
significant
temperature
humidity
dependence.
At
98%
RH
100
°C,
their
optimal
σ
values
can
reach
up
10-3
S·cm-1.
Consequently,
imidazole
units
are
loaded
into
1-3
obtain
related
Im@1,
Im@2,
Im@3,
imidazole-loaded
products
boosted
10-2
Note
that
these
modifications
not
only
do
change
pristine
but
also
affect
high
chemical
water
stability.
The
proton-conductive
mechanisms
before
after
modification
have
been
thoroughly
discussed
based
on
analyses,
N2
H2O
vapor
adsorptions,
activation
energy
values.
excellent
stability
as
well
durability
conduction
ability
indicate
be
used
in
field
fuel
cells
so
on.
