Chemistry - A European Journal,
Год журнала:
2024,
Номер
30(26)
Опубликована: Фев. 23, 2024
Sensing
of
benzene
vapor
is
a
hot
spot
due
to
the
volatile
drastic
carcinogen
even
at
trace
concentration.
However,
achieving
convenient
and
rapid
detection
still
challenge.
As
sort
functional
porous
material,
metal-organic
frameworks
(MOFs)
have
been
developed
as
sensors
by
adsorbing
converting
it
into
other
signals
(fluorescence
intensity/wavelength,
chemiresistive,
weight
or
color,
etc.).
Supramolecular
interaction
between
molecules
host
framework,
aperture
size/shape
structural
flexibility
are
influential
factors
in
performance
MOF-based
sensors.
Therefore,
enhancing
host-guest
interactions
framework
molecules,
regulating
diffusion
rate
changing
enhance
signal
effective
strategies
for
constructing
This
concept
highlights
several
types
vapor.
ACS Omega,
Год журнала:
2024,
Номер
9(26), С. 28114 - 28128
Опубликована: Июнь 21, 2024
The
present
work
aims
at
preparing
the
EDTA–Zn(II)
complex─supported
on
amine-functionalized
MIL-101(Cr)
MOF─as
a
new
and
effective
heterogenized
catalyst.
optimization
of
hydrothermal
process
shows
that
120
°C
is
best
condition
to
grow
MIL-101(Cr)–NH2
MOF
crystals.
Moreover,
regarding
use
postsynthetic
modification
(PSM)
method,
hexadentate
EDTA
was
grafted
this
support
via
simple
aminolysis
before
further
coordinating
it
with
Zn
ions
create
corresponding
Zn(II)
catalytic
complex.
activity
compound
then
investigated
in
context
one-pot
synthesis
polyhydroquinolines.
This
approach
has
number
advantages
including
following:
solvent
not
hazardous,
applying
porous
catalyst
inexpensive,
secure,
recyclable;
rapid
reaction
times,
high
levels
efficiency,
simplicity
separation.
Accordingly,
question
can
be
given
label
"green
chemistry".
Journal of the American Chemical Society,
Год журнала:
2023,
Номер
145(50), С. 27198 - 27204
Опубликована: Дек. 6, 2023
The
special
redox
reactivity
of
water
microdroplets
causes
"mild
ignition"
methane
gas
to
form
oxygenates.
C(sp3)–H
bond
can
be
activated
by
the
hydroxyl
radical
(OH·)
or
hydrogen
(H·)
across
air–water
interface
(AWI)
generate
methyl
(CH3·).
Once
CH3·
is
formed,
it
undergoes
free-radical
reactions
with
O2
in
air,
excessive
OH·
and
H·
AWI,
H2O2
present
at
AWI
generated
itself
produce
methanol
other
species.
Production
oxygenates
was
confirmed
chromatography,
mass
spectrometry,
1H-
13C-nuclear
magnetic
resonance.
Formic
acid,
acetic
ethanol,
carbon
dioxide,
peroxide
were
also
detected
as
oxidation
byproducts.
This
microdroplet-initiated
process
further
enhanced
under
ultrasonication
yield
2.66
±
0.77
mM
conversion
from
a
single
spray
run
for
30
min,
selectivity
19.2%
compared
all
oxygenated
The Chemical Record,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 16, 2025
Abstract
Direct
methane
to
methanol
conversion
is
a
dream
reaction
in
industrial
chemistry,
which
takes
inspiration
from
the
biological
production
catalysed
by
monooxygenase
enzymes
(MMOs).
Over
years,
extensive
studies
have
been
conducted
on
this
topic
bioengineering
MMOs,
and
tailoring
methods
isolate
MMOs
active
form.
Similarly,
remarkable
achievements
noted
other
activation
strategies
such
as
use
of
heterogeneous
catalysts
or
molecular
catalysts.
In
review,
we
outline
metabolism
performed
methanotrophs
detail
latest
advancements
site
structures
catalytic
mechanisms
both
types
MMOs.
Also,
recent
progress
bioinspired
approaches
using
various
catalysts,
especially
first‐row
transition
metal
zeolites
mechanistic
insights
are
discussed.
addition,
complexes
“Periana
catalyst”
for
through
methyl
ester
formation
presence
strong
acids
also
detailed.
Compared
zeolites‐mediated
field,
utilisation
application
still
its
nascent
phase
further
research
required
overcome
limitations
these
effectively.
Chemical Communications,
Год журнала:
2023,
Номер
59(68), С. 10226 - 10242
Опубликована: Янв. 1, 2023
Metal-organic
framework
(MOF)-based
catalysts
are
outstanding
alternative
materials
for
the
chemical
transformation
of
greenhouse
and
toxic
gases
into
high-add-value
products.
MOF
exhibit
remarkable
properties
to
host
different
active
sites.
The
combination
catalytic
MOFs
is
mentioned
in
order
understand
their
application.
Furthermore,
main
reactions,
which
involve
CH4,
CO2,
NOx,
fluorinated
gases,
O3,
CO,
VOCs,
H2S,
highlighted.
centers
reaction
conditions
these
reactions
presented
discussed
mechanisms.
Interestingly,
implementing
as
gas-phase
a
great
opportunity
provide
new
alternatives
enhance
air
quality
our
planet.
