Abstract
Pyrolytic
single
Fe
atom‐nitrogen‐carbon
materials
(Fe−N−C)
and
their
derivatives
are
excellent
catalysts
for
electrochemical
oxygen
reduction
reactions.
However,
they
exhibit
poor
evolution
reaction
(OER)
activity
due
to
non‐optimal
Fe−O*
bonding.
This
limitation
is
overcome
via
electronic
structure
modulation
(i.
e.,
tuning
the
heteroatom
type,
concentration,
location
within
Fe's
n≥1
coordination
sphere).
methods
used
complex
energy‐intensive
1000
1200
°C)
raising
concerns
about
reproducibility
cost.
study
introduces
a
method
synthesizing
nonpyrolytic
Fe−N−C/Fe
2
O
3
composites
with
similar
as
pyrolytic
Fe−N−C
OER
akin
commercial
RuO
.
The
methodology
involves
doping
low‐melting
hydrated
Fe‐salts
in
electrospun
polyacrylonitrile
nanofiber
catalyze
its
transformation
into
conjugated
pyridinic‐N‐rich
graphite‐like
sheets
N−C)
at
300
°C.
N−C
chelate
effectively
oxygen‐vacant
(Ov)‐rich
atoms
derived
from
NPs
resulting
heterostructures.
coupling
tunes
Fe−N−C's
Ov
modulation.
Consequently,
Fermi
d‐orbital
energy
levels
optimized
leading
partial
filling
of
antibonding
states,
optimal
bonding,
high
electrochemically
active
surface
area,
activity.
Because
/Fe
synthesized
°C
using
well‐established
techniques,
complexity
cost
favorable
compared
materials.
Advanced Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 30, 2024
Abstract
Oxygen
electrocatalysis,
as
the
pivotal
circle
of
many
green
energy
technologies,
sets
off
a
worldwide
research
boom
in
full
swing,
while
its
large
kinetic
obstacles
require
remarkable
catalysts
to
break
through.
Here,
based
on
summarizing
reaction
mechanisms
and
situ
characterizations,
structure–activity
relationships
oxygen
electrocatalysts
are
emphatically
overviewed,
including
influence
geometric
morphology
chemical
structures
electrocatalytic
performances.
Subsequently,
experimental/theoretical
is
combined
with
device
applications
comprehensively
summarize
cutting‐edge
according
various
material
categories.
Finally,
future
challenges
forecasted
from
perspective
catalyst
development
applications,
favoring
researchers
promote
industrialization
electrocatalysis
at
an
early
date.
Chemical Reviews,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 18, 2025
The
electrocatalytic
technique,
as
an
efficient
energy
storage
and
conversion
technology,
has
attracted
significant
attention
to
address
exhaustion
environmental
pollution.
Usually,
the
activity
selectivity
of
reactions
are
largely
dominated
by
dynamic
process
occurring
on
electrocatalysts.
Therefore,
high-performance
electrocatalysts,
which
can
dominate
pathway
barrier
reactions,
great
significance
for
advancement
technique.
Metal-organic
frameworks
(MOFs),
emerging
crystalline
porous
materials,
present
structural
component
advantages
including
well-defined
structure,
high
surface
area,
large
porosity,
diverse
components,
easy
tailorability,
demonstrating
fantastic
potential
precise
fabrication
In
this
Review,
strategies
in
electrocatalysts
based
MOF-related
materials
specifically
introduced
from
aspects
catalytic
site
design
microenvironment
modulation
around
sites.
Furthermore,
representative
progress
achieved
various
applications
employing
MOF-based
is
systematically
summarized,
with
special
emphasis
MOFs
performance
optimization.
Finally,
remaining
challenges
future
perspectives
further
highlighted.
Batteries & Supercaps,
Год журнала:
2024,
Номер
7(11)
Опубликована: Авг. 15, 2024
Abstract
Rechargeable
Zn‐air
batteries
offer
the
advantages
of
environmental
friendliness,
safety,
low
prices
and
high
energy
density,
are
highly
valued.
However,
major
challenge
faced
by
rechargeable
nowadays
is
efficiency
due
to
slow
reaction
kinetics
electrocatalyst
at
air
cathode.
Bifunctional
catalysts
key
development
improving
their
overall
performance
long‐term
cycling
stability.
Metal‐organic
framework
(MOF)
materials
have
shown
great
benefits
as
oxygen
electrocatalysts
in
promoting
reduction
(ORR)
evolution
(OER).
This
paper
reviews
recent
advances
three
kinds
MOF
bifunctional
for
batteries.
Additionally,
this
also
discusses
synthetic
design
strategy
composite
derivatives,
concludes
suggesting
application
field
Inorganic Chemistry Frontiers,
Год журнала:
2024,
Номер
11(14), С. 4347 - 4363
Опубликована: Янв. 1, 2024
Aqueous
Mg–air
batteries
possess
tremendous
potential
for
future
energy
storage
applications
owing
to
their
inherent
advantages
in
terms
of
safety
and
cost-effectiveness.
