Molecules,
Journal Year:
2024,
Volume and Issue:
29(10), P. 2217 - 2217
Published: May 9, 2024
A
series
of
MOF-derived
ZrO2-supported
Pd-Ni
bimetallic
catalysts
(PdNi/UiO-67-CTAB(n)-A500)
were
prepared
by
co-impregnation
and
pyrolysis
at
500
°C
under
air
atmosphere
using
UiO-67-CTAB(n)
(CTAB:
cetyltrimethylammonium
bromide;
n:
the
concentration
CTAB;
n
=
0,
3,
8,
13,
18)
as
a
sacrificial
template.
The
catalytic
activity
PdNi/UiO-66-CTAB(n)-A500
in
1,3-butadiene
hydrogenation
was
found
to
be
dependent
on
crystal
morphology
UiO-67
highest
observed
over
PdNi/UiO-67-CTAB(3)-A500
catalyst
which
synthesized
UiO-67-CTAB(3)
with
uniform
octahedral
template
for
selective
hydrogenation.
conversion
total
butene
selectivity
98.4%
44.8%
40
within
1
h
catalyst,
respectively.
can
regenerated
flowing
N2
200
°C.
Carbon
deposited
surface
main
reason
its
deactivation.
This
work
is
valuable
high-efficiency
catalyst’s
development
1,3-butadiene.
ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(13), P. 16132 - 16144
Published: March 21, 2024
The
main
impediment
to
the
development
of
zinc-air
batteries
is
sluggish
kinetics
oxygen
reduction
reaction
(ORR)
and
evolution
(OER).
Transition
metal
N-doped
carbon
catalysts
offer
a
promising
alternative
noble
catalysts,
with
metal-organic
framework
(MOF)-derived
material
being
particularly
noteworthy.
Here,
we
synthesized
M
Materials Today Catalysis,
Journal Year:
2023,
Volume and Issue:
3, P. 100030 - 100030
Published: Oct. 12, 2023
Constructing
a
Z-scheme
heterostructure
is
of
great
significance
to
achieve
efficient
photocatalytic
CO2
conversion
without
sacrificial
reagents.
However,
the
fabrication
well-suited
remains
challenge.
In
this
work,
we
constructed
system
with
suitable
band
structure
by
in-situ
hydrothermal
growth
In2S3
nanosheets
on
electrospun
Fe3C/Carbon
fibers
3D
structure.
The
electron
transport
path
verified
calculation
energy
and
method
photodeposition,
indicating
that
Fe3C
are
reduction
reaction
sites
oxidation
respectively.
Carbon
serve
as
both
skeleton
mediator
from
In2S3.
Moreover,
DFT
demonstrates
introduction
can
reduce
barrier
*CO
*COH
coupling
In2S3,
weaken
bonding
In-S,
thereby
enhancing
product
selectivity
towards
acetate.
Owing
charge
transfer
system,
photocorrosion
in
also
greatly
reduced,
showing
relatively
stable
chemical
composition
after
several
hours
reaction.
Compared
Fe3C/C,
In2S3-C/Fe3C
composites
showed
significantly
increased
acetate
evolution
rate
11.33
μmol/h/g
any
This
work
provides
important
insights
into
design
research
photocatalyst
combines
monolithic
flow
for
conversion.
ACS Applied Energy Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 15, 2025
The
Fe–N4-based
Fe
single-atom
catalyst
exhibits
high
efficiency
in
oxygen
reduction
reaction
(ORR)
activity,
while
Co
oxides
demonstrate
excellent
evolution
(OER)
activity.
In
this
study,
we
report
an
easily
synthesized
carbon-based
CoFe@CNT
that
incorporates
both
single
atoms
and
CoO
nanoparticles.
This
is
derived
from
a
two-dimensional
metalloporphyrin-based
metal–organic
framework
(CoFeMOF)
composed
of
FeTCPP
(5,10,15,20-tetrakis(p-carboxylphenyl)porphyrin
iron)
building
unit
coordinated
with
Co2+
4,4′-bipyridine.
superior
ORR
(half-wave
potential
=
0.85
V)
OER
(overpotential
at
10
mA
cm–2
370
mV)
performances
better
stability
compared
to
ZnFe@CNT
Co@CNT
(from
the
respective
ZnFeMOF
CoMOF
precursors)
commercial
Pt/C
catalysts.
XPS
analysis
reveals
presence
Fe–N4
nanoparticles
not
only
induces
electron
transfer
but
also
generates
higher
combined
content
pyridinic
N
Co@CNT,
which
enhances
catalytic
A
Zn–air
battery
using
as
cathode
achieves
power
density
(115
mW
cm–2),
outperforming
catalyst.
design
synthesis
2D
MOF-derived
electrocatalyst
offer
promising
prospects
for
developing
high-density
metal–air
batteries.
