Chemistry of Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 21, 2024
The
advancement
of
highly
efficient
and
durable
electrocatalysts
for
the
oxygen
evolution
reaction
(OER)
is
essential
advancing
sustainable
hydrogen
energy
technologies.
In
this
study,
we
synthesized
a
novel
medium-entropy
metal
nitride
(MEMN),
FeCoNiZnN,
with
an
antiperovskite
structure
through
solid-phase
method.
FeCoNiZnN
displays
ferromagnetism
above
350
K
demonstrates
exceptional
OER
performance
specific
activity
141
times
greater
than
that
Co3ZnN,
overpotential
only
301
mV
at
10
mA
cm–2,
comparable
to
commercial
RuO2
catalysts,
exhibits
superior
durability.
Density
functional
theory
(DFT)
calculations
reveal
enhanced
catalytic
due
optimized
electronic
properties
improved
d-band
centers,
which
enhance
adsorption
intermediates
reduce
free
barriers
rate-determining
step.
This
study
highlights
potential
MEMNs
in
developing
advanced
magnetic
materials
electrocatalysts.
Inorganic Chemistry,
Journal Year:
2024,
Volume and Issue:
63(32), P. 15197 - 15205
Published: Aug. 2, 2024
The
oxygen
reduction/evolution
reaction
(ORR/OER)
represents
a
pivotal
process
in
metal-air
batteries;
however,
it
is
constrained
by
the
limitations
of
slow
kinetics.
Nevertheless,
creation
long-lasting
and
bifunctional
catalysts
significant
challenge.
This
study
presents
series
hierarchical
porous
carbon-supported
cobalt
pyrophosphate
(Co
Chemical Synthesis,
Journal Year:
2024,
Volume and Issue:
4(4)
Published: Nov. 11, 2024
Oxygen
evolution
reactions
(OER),
commonly
employed
in
applications
such
as
metal-air
batteries,
water
electrolysis,
fuel
cells,
etc.
,
often
suffer
from
slow
kinetics,
thus
leading
to
ultra-high
potentials
that
severely
affect
device
energy
efficiency.
Metal-organic
frameworks
(MOFs)
have
garnered
massive
attention
electrodes
for
OER,
benefiting
their
highly
ordered
porous
frameworks,
abundant
accessible
active
metal
sites,
and
adjustable
lattice
structures.
However,
using
powdered
MOFs
OER
poses
a
challenge,
limiting
the
exposure
of
numerous
sites
resulting
suboptimal
To
address
this
limitation,
trend
towards
designing
MOF-based
self-supported
with
enhanced
contact
between
current
collector
has
gained
considerable
applications.
This
review
highlights
recent
advancements
future
prospects
developing
OER.
We
delve
into
various
aspects,
including
preparation
methods,
optimization
strategies,
catalytic
efficiencies,
mechanisms
electrocatalysts.
Furthermore,
we
explore
existing
challenges
associated
comprehensive
overview
provides
valuable
insights
evolving
landscape
materials
advancing
ACS Omega,
Journal Year:
2024,
Volume and Issue:
9(47), P. 46643 - 46663
Published: Nov. 13, 2024
With
the
rapid
development
of
modern
society,
efficient
and
utilization
new
energy
have
become
more
important.
The
high-performance
storage
conversion
devices
has
a
decisive
impact
on
sustainable
use
energy.
In
foreseeable
future,
exploration
high-quality
functional
materials
for
will
continue
to
be
main
goal
pursued
by
scientific
application
fields.
Metal
organic
frameworks
(MOFs)
merits
adjustable
porosity
stable
structure.
Moreover,
metal
elements
in
MOFs
could
play
role
as
active
sites
during
electrochemical
process.
Thus,
various
kinds
their
derivatives
been
prepared
used
conversion.
this
work,
applications
potentials
cobalt-based
(Co-MOFs)
supercapacitors,
advanced
batteries,
catalysts
reviewed
summarized.
properties,
mechanisms,
effects
performance
were
described
depth.
A
large
number
Co-MOFs
with
unique
structures,
well
numerous
Co-MOF
composites,
developed,
excellent
achieved,
which
already
some
most
advantageous
field.
addition,
current
research
status,
difficulties,
prospects
Co-based
comprehensively
summarized
at
end
study.
Chemistry of Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 21, 2024
The
advancement
of
highly
efficient
and
durable
electrocatalysts
for
the
oxygen
evolution
reaction
(OER)
is
essential
advancing
sustainable
hydrogen
energy
technologies.
In
this
study,
we
synthesized
a
novel
medium-entropy
metal
nitride
(MEMN),
FeCoNiZnN,
with
an
antiperovskite
structure
through
solid-phase
method.
FeCoNiZnN
displays
ferromagnetism
above
350
K
demonstrates
exceptional
OER
performance
specific
activity
141
times
greater
than
that
Co3ZnN,
overpotential
only
301
mV
at
10
mA
cm–2,
comparable
to
commercial
RuO2
catalysts,
exhibits
superior
durability.
Density
functional
theory
(DFT)
calculations
reveal
enhanced
catalytic
due
optimized
electronic
properties
improved
d-band
centers,
which
enhance
adsorption
intermediates
reduce
free
barriers
rate-determining
step.
This
study
highlights
potential
MEMNs
in
developing
advanced
magnetic
materials
electrocatalysts.
