Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: June 17, 2024
Abstract
Emerging
atomically
dispersed
metal
catalysts
(ADCs),
especially
carbon−based
ADCs
have
arguably
received
enormous
attention
in
diverse
electrochemical
energy
conversion
processes.
Such
well−defined
active
centers,
and
their
geometric
electronic
structures
depend
greatly
on
coordination
microenvironments,
which,
turn,
govern
the
performances
realm
of
electrocatalysis.
In
this
review,
it
is
focused
state−of−the−art
synthesis
strategies
for
ADCs,
with
particular
emphasis
microenvironment
modulations.
The
advances
characterizing
alongside
understanding
synthetic
pathway
are
outlined,
exemplified
applications,
including
electrocatalytic
H
2
evolution,
O
evolution/reduction,
CO
reduction,
Li
polysulfides
reactions.
Rather
than
focusing
catalysis
metrics,
review
delved
deeply
into
underly
science
associated
reaction
mechanisms
these
systems.
fundamental
impacts
microenvironments
activities,
selectivities,
stabilities
discussed.
end,
concluded
by
highlighting
current
issues
engineering
propose
prospects
future
opportunities
challenges.
Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 23, 2024
Abstract
Alkaline
electrolysis
plays
a
crucial
role
in
sustainable
energy
solutions
by
utilizing
electrolytic
cells
to
produce
hydrogen
gas,
providing
clean
and
efficient
method
for
storage
conversion.
Efficient,
stable,
low‐cost
electrocatalysts
the
oxygen
evolution
reaction
(OER)
are
essential
facilitate
alkaline
water
on
commercial
scale.
Nickel‐iron‐based
(NiFe‐based)
transition
metal
considered
most
promising
non‐precious
catalysts
OER
due
their
low
cost,
abundance,
tunable
catalytic
properties.
Nevertheless,
majority
of
existing
NiFe‐based
suffer
from
limited
activity
poor
stability,
posing
significant
challenge
meeting
industrial
applications.
This
also
highlights
common
situation
where
emphasis
material
receives
attention,
while
equally
critical
stability
aspect
is
often
underemphasized.
Initiating
with
comprehensive
exploration
materials,
this
article
first
summarizes
debate
surrounding
determination
active
sites
electrocatalysts.
Subsequently,
degradation
mechanisms
recently
reported
outlined,
encompassing
assessments
both
chemical
mechanical
endurance,
along
approaches
enhancing
stability.
Finally,
suggestions
put
forth
regarding
considerations
design
electrocatalysts,
focus
heightened
Journal of Materials Chemistry A,
Journal Year:
2023,
Volume and Issue:
12(3), P. 1804 - 1815
Published: Dec. 1, 2023
The
design
of
the
energy
band
structure
modulates
surface
charge
distribution
and
optimizes
levels
Fe
3
C-NG@NiFe,
construction
double
heterojunction
introduces
additional
active
sites
fast
electron
transfer
for
OER.
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
146(19), P. 13066 - 13082
Published: April 30, 2024
Copper
ion
is
a
versatile
and
ubiquitous
facilitator
of
redox
chemical
biochemical
processes.
These
include
the
binding
molecular
oxygen
to
copper(I)
complexes
where
it
undergoes
stepwise
reduction-protonation.
A
detailed
understanding
thermodynamic
relationships
between
such
reduced/protonated
states
key
elucidate
fundamentals
chemical/biochemical
processes
involved.
The
dicopper(I)
complex
[Cu
Advanced Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 30, 2025
Abstract
The
success
of
different
heterogeneous
strategies
organometallic
catalysts
has
been
demonstrated
to
achieve
high
selectivity
and
activity
in
photo/electrocatalysis.
However,
yielding
their
catalytic
mechanisms
at
complex
molecule‐electrode
electrochemical
interfaces
remains
a
great
challenge.
Herein,
shell‐isolated
nanoparticle‐enhanced
Raman
spectroscopy
is
employed
elucidate
the
dynamic
process,
interfacial
structure,
intermediates
copper
hydroxide‐2‐2′
bipyridine
on
Au
electrode
((bpy)Cu(OH)
2
/Au)
during
oxygen
evolution
reaction
(OER).
Direct
molecular
evidences
reveal
that
(bpy)Cu(OH)
oxidizes
into
Cu(III)
bridges
atoms
via
oxygenated
species,
forming
(bpy)Cu(III)O
‐Au
with
oxygen‐bridged
binuclear
metal
centers
Cu(III)‐O‐Au
for
OER.
As
potential
further
increases,
combines
surface
hydroxyl
groups
(*OH)
form
important
intermediate
Cu(III)‐OOH‐Au,
which
then
turns
Cu(III)‐OO‐Au
release
O
.
Furthermore,
situ
impedance
proves
lower
resistance
faster
mass
transport
hydroxy
enhance
Theoretical
calculations
formation
significantly
modify
elementary
steps
OER,
resulting
potential‐determining
step
≈0.58
V
than
bare
Au.
This
work
provides
new
insights
OER
mechanism
immobilized‐molecule
development
application
renewable
energy
conversion
devices.
Journal of the American Chemical Society,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 15, 2025
Bimetallic
cooperative
catalysis,
inspired
by
cytochrome
c
oxidase
and
multicopper
oxidase,
plays
a
crucial
role
in
the
development
of
four-electron
oxygen
reduction
catalysts.
The
distance
between
metals
is
factor
affecting
effect,
but
its
precise
influence
on
bimetallic
cooperativity
selective
catalysis
still
awaits
an
in-depth
understanding.
Herein,
we
employ
series
dicopper
complexes
with
varying
linkers
to
systematically
adjust
Cu···Cu
for
electrocatalytic
reduction.
Structure-activity
relationship
analyses
reveal
that
catalysts
shorter
center
exhibited
significantly
higher
selectivity
(approaching
100%
BPMPDCu2
BPMANCu2)
than
longer
(below
80%
6-HPACu2)
aqueous
solution
(pH
7.0).
Notably,
catalytic
activity
11
times
237
faster
those
6-HPACu2
BPMANCu2,
respectively,
which
does
not
correlate
directly
their
distances.
Further
investigations
into
low-valent
LCuI2
intermediates,
supported
DFT
calculations,
indicate
binding
process
rate-determining
step
under
conditions
sensitive
CuI···CuI
distance.
closest
BPMANCuI2
characterized
strong
CuI-CuI
interactions
more
distant
6-HPACuI2
separated
sites
both
hinder
effective
O2
binding.
In
contrast,
BPMPDCuI2
maintains
optimal
facilitates
ensures
robust
throughout
cycle.
This
work
underscores
significance
metal-metal
regulation
cooperatively
provides
valuable
insights
rational
design
high-performance
The Chemical Record,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 24, 2025
Abstract
Energy
transition
toward
sustainable,
alternative,
and
affordable
solutions
is
likely
to
be
one
of
the
major
challenges
anthropocene
era.
The
oxygen
evolution
reaction
(OER)
a
pivotal
electrocatalytic
process
essential
for
advancing
renewable
energy
conversion
storage
technologies,
including
water
splitting,
artificial
photosynthesis,
metal‐air
batteries,
fuel
cells.
Electrocatalytic
pathways
can
significantly
reduce
overall
requirements
these
devices,
particularly
focusing
on
demands
associated
with
splitting
hydrogen
production.
This
review,
after
introducing
state
art
in
heterogeneous
catalysis,
will
devoted
description
molecular
oxidation
electrocatalysts
(MWOCs),
recent
advancements
catalysts
composed
various
metals,
Mn,
Co,
Cu,
Ni,
Fe,
combination
range
mono‐
multidentate
ligands.
Critical
insights
are
presented
discussed
provide
readers
suggestions
ligand
design
assisted
catalysis.
These
observations
aim
identify
synergistic
that
could
enhance
technological
maturity
by
reducing
absorption
while
improving
stability
efficiency.
