Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(36)
Published: March 18, 2024
Abstract
Recently,
a
diverse
array
of
novel
metal‐nitrogen‐carbon
(M‐N‐C)
single‐atom
catalysts
(SACs)
have
rapidly
evolve,
particularly
in
the
realm
oxygen
reduction
reaction
(ORR).
Despite
plethora
proposed
design
and
improvement
strategies
for
SACs,
comprehensive
review
systematically
compiling
components
M‐N‐C
from
unified
perspective
is
notably
absent.
For
first
time,
thorough
examination
each
component
conducted,
focusing
on
entropy
increase
active
sites
SACs.
single
M‐N
4
whole
system,
an
implies
elevated
degree
disorder
chaos.
Broadly,
entropy‐increasing
modification
M
(single
mental
sites)
guest
groups
entails
augmentation
chaos,
with
most
effective
co‐catalytic
synergy
achieved
by
establishing
multiple
through
“cocktail
effect”.
Concerning
N
(nitrogen
other
heteroatoms)
C
(carbon
supports),
induces
heightened
disorder,
symmetry
breaking
more
likely
to
drive
toward
adsorbing
molecules
attain
equilibrium
symmetric
structure.
All
these
innovative
led
remarkable
ORR
activity
stability
offer
guiding
criterion
future
preparation
Chemical Society Reviews,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
This
review
examines
the
strategies
of
symmetry
breaking
(charge/coordination/geometric)
in
single-atom
catalysts
to
regulate
active
site
electronic
structures,
greatly
enhancing
catalytic
performance.
