Exploration,
Journal Year:
2024,
Volume and Issue:
4(4)
Published: Jan. 17, 2024
Abstract
The
advancement
of
economical
and
readily
available
electrocatalysts
for
the
oxygen
reduction
reaction
(ORR)
holds
paramount
importance
in
fuel
cells
metal‐air
batteries.
Recently,
2D
non‐metallic
materials
have
obtained
substantial
attention
as
viable
alternatives
ORR
catalysts
due
to
their
manifold
advantages,
encompassing
low
cost,
ample
availability,
surface‐to‐volume
ratio,
high
conductivity,
exceptional
durability,
competitive
activity.
augmented
performances
observed
metal‐free
typically
arise
from
heteroatom
doping,
defects,
or
formation
heterostructures.
Here,
authors
delve
into
realm
ORR,
pivoting
around
materials.
Initially,
merits
are
explored
mechanism
is
dissected.
Subsequently,
a
comprehensive
survey
diverse
presented,
tracing
evolutionary
journey
fundamental
concepts
pragmatic
applications
context
ORR.
Substantial
given
on
exploration
various
strategies
enhancing
assessing
impact
inherent
material
performance,
including
electronic
properties.
Finally,
challenges
future
prospects
that
lie
ahead
underscored,
they
aspire
serve
efficient
electrocatalysts.
Angewandte Chemie International Edition,
Journal Year:
2023,
Volume and Issue:
63(5)
Published: Nov. 7, 2023
Single-atom
catalysts
manifest
nearly
100
%
atom
utilization
efficiency,
well-defined
active
sites,
and
high
selectivity.
However,
their
practical
applications
are
hindered
by
a
low
loading
density,
uncontrollable
location,
ambiguous
interaction
with
the
support,
thereby
posing
challenges
to
maximizing
electrocatalytic
performance.
To
address
these
limitations,
ability
arrange
randomly
dispersed
single
atoms
into
locally
ordered
single-atom
(LO-SACs)
substantially
influences
electronic
effect
between
reactive
sites
synergistic
among
neighboring
atoms,
bonding
energy
of
intermediates
complexity
mechanism.
As
such,
it
dramatically
promotes
reaction
kinetics,
reduces
barrier
reaction,
improves
performance
catalyst
simplifies
In
this
review,
firstly,
we
introduce
variety
compelling
characteristics
LO-SACs
as
electrocatalysts.
Subsequently,
synthetic
strategies,
characterization
methods
in
electrocatalysis
discussed.
Finally,
future
opportunities
elaborated
encourage
further
exploration
rapidly
evolving
field.
Small,
Journal Year:
2024,
Volume and Issue:
20(22)
Published: Jan. 6, 2024
Single-atom
catalysts
(SACs)
hold
immense
promise
in
facilitating
the
rational
use
of
metal
resources
and
achieving
atomic
economy
due
to
their
exceptional
atom-utilization
efficiency
distinct
characteristics.
Despite
growing
interest
SACs,
only
limited
reviews
have
holistically
summarized
advancements
centering
on
performance
metrics.
In
this
review,
first,
a
thorough
overview
research
progress
SACs
is
presented
from
perspective
strategies,
advancements,
intriguing
approaches
employed
enhance
critical
attributes
are
discussed.
Subsequently,
comprehensive
summary
analysis
electrochemical
applications
provided,
with
particular
focus
efficacy
oxygen
reduction
reaction
,
evolution
reaction,
hydrogen
CO
Exploration,
Journal Year:
2024,
Volume and Issue:
4(4)
Published: Jan. 17, 2024
Abstract
The
advancement
of
economical
and
readily
available
electrocatalysts
for
the
oxygen
reduction
reaction
(ORR)
holds
paramount
importance
in
fuel
cells
metal‐air
batteries.
Recently,
2D
non‐metallic
materials
have
obtained
substantial
attention
as
viable
alternatives
ORR
catalysts
due
to
their
manifold
advantages,
encompassing
low
cost,
ample
availability,
surface‐to‐volume
ratio,
high
conductivity,
exceptional
durability,
competitive
activity.
augmented
performances
observed
metal‐free
typically
arise
from
heteroatom
doping,
defects,
or
formation
heterostructures.
Here,
authors
delve
into
realm
ORR,
pivoting
around
materials.
Initially,
merits
are
explored
mechanism
is
dissected.
Subsequently,
a
comprehensive
survey
diverse
presented,
tracing
evolutionary
journey
fundamental
concepts
pragmatic
applications
context
ORR.
Substantial
given
on
exploration
various
strategies
enhancing
assessing
impact
inherent
material
performance,
including
electronic
properties.
Finally,
challenges
future
prospects
that
lie
ahead
underscored,
they
aspire
serve
efficient
electrocatalysts.
