Langmuir,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 17, 2024
The
efficient
conversion
of
plastic
wastes
to
high-value
carbon
materials
like
nanotubes
(CNTs)
is
one
important
issue
about
the
rational
recycling,
reduction,
and
reuse
solid
wastes.
Herein,
Fe-,
Co-,
Ni-Zr
catalysts
were
prepared
used
for
CNTs
synthesis
from
polyethylene
(PE)
waste
via
a
two-stage
reaction
system.
At
same
time,
effects
PE/catalyst
ratio
temperature
on
have
been
studied.
Compared
with
Co-Zr
Ni-Zr,
Fe-Zr
exhibited
best
activity
in
PE,
it
achieved
highest
yield
806.3
mg/g
(per
gram
Fe-Zr)
at
800
°C
4.
Furthermore,
obtained
Fe-Zr/CNTs
composite
low
overpotential
267
mV
electrocatalytic
oxygen
evolution
(OER)
20
mA/cm
Langmuir,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Feb. 7, 2024
Rational
design
and
fabrication
of
metal–organic
framework-derived
metal
oxide
(MO)
materials
featuring
a
hollow
structure
active
support
can
significantly
enhance
their
catalytic
activity
for
specific
reactions.
Herein,
series
Co3O4
nanoparticles
(NPs)
immobilized
in
boron
nitride
(denoted
as
Co3O4@BN)
with
highly
open
precisely
controllable
structures
were
constructed
by
an
situ
self-assembly
method
combined
controlled
annealing
process.
The
obtained
Co3O4@BN
not
only
possesses
but
also
shows
dispersed
NPs
high
loadings
up
to
34.3
wt
%.
Owing
the
ultrafine
particle
size
dispersity,
optimized
exhibits
cycloaddition
CO2
epoxides
under
mild
conditions
(i.e.,
100
°C
balloon),
resulting
at
least
4.5
times
higher
yields
(99%)
styrene
carbonate
than
that
synthesized
pristine
ZIF-67.
This
strategy
sheds
light
on
rational
MO
various
advanced
applications.
Chemistry - An Asian Journal,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 11, 2025
Abstract
Efficient
extraction
of
uranyl
ions
from
seawater
is
crucial
for
the
commercialization
nuclear
technology.
Metal‐organic
frameworks
(MOFs),
with
their
superior
uranium
properties,
face
challenges
in
large‐scale
applications
due
to
powdery
nature
and
difficulty
assembling
them
into
mechanically
stable
macroscopic
composites.
To
address
this,
successfully
synthesized
90
wt
%
nanoMOF
(aluminum
fumarate)
loaded
directional
aerogels
(AlFA‐3‐10)
using
polyvinyl
alcohol
(PVA)
as
an
adhesive,
which
demonstrates
robust
strength
longitudinally
transversely.
Our
adsorption
experiments
reveal
that
at
a
pH
8
(akin
seawater),
AlFA‐3‐10
achieves
maximum
capacity
1146.25
mg
g
−1
,
maintaining
this
exceptional
performance
over
five
cycles.
Notably,
simulated
seawater,
exhibits
high
selectivity
minimal
interference
other
ions.
The
pores
within
facilitate
fluid
transmission
exchange,
ensuring
optimal
contact
between
MOF
ions,
thereby
enhancing
electrostatic
attraction
electron
transport
improved
capture
efficiency.
This
streamlined
approach
maximizes
intrinsic
potential
nano‐MOFs
heralds
new
era
integration
composite
materials.
Inorganic Chemistry Frontiers,
Journal Year:
2024,
Volume and Issue:
11(7), P. 2007 - 2016
Published: Jan. 1, 2024
The
well-distributed
cobalt
nanoparticles,
coupled
with
the
large
specific
surface
area
and
high
conductivity
of
catalyst,
expand
effective
number
active
sites
to
achieve
catalytic
activity
toward
both
ORR
OER.
