Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: May 8, 2025
Oxygen
reduction
reaction
(ORR)
kinetics
are
closely
related
to
the
electronic
structure
of
active
sites.
Herein,
a
single-atomic
Mn
catalyst
decorated
with
adjacent
MoP
nanocrystals
(MoP@MnSAC-NC)
is
reported.
The
decoration
drives
transition
sites
from
low-spin
high-spin
states
through
an
phosphide-support
interaction.
rearranged
electron
occupation
in
3dxz-yz
and
3dz
2
orbitals
leads
electrons
occupying
σ
orbital
Mn─*O2,
thereby
favoring
O2
adsorption
initiate
ORR
mechanism.
In
situ
characterizations
confirm
that
state
can
activate
molecular
O₂
optimize
*OOH
intermediate.
As
result,
MoP@MnSAC-NC
displays
outstanding
alkaline
half-wave
potential
(E1/2
=
0.894
V),
excellent
peak
power
densities
(173/83
mW
cm-2
for
liquid/solid-state
Zn-air
batteries,
respectively),
long-term
stability
(840
h)
superior
commercial
Pt/C.
This
work
provides
profound
insights
into
spintronics-level
engineering,
guiding
design
next-generation
high-performance
catalysts.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 8, 2024
The
local
acidity
at
the
anode
surface
during
electrolysis
is
apparently
stronger
than
that
in
bulk
electrolyte
due
to
deprotonation
from
reactant,
which
leads
deteriorated
electrocatalytic
performances
and
product
distributions.
Here,
an
anode-electrolyte
interfacial
regulation
strategy
has
been
proposed
inhibit
acidification
of
enhance
activity
selectivity
anodic
reactions.
As
a
proof
concept,
CeO
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 3, 2025
Abstract
Oxygen
electrocatalysis
is
a
core
reaction
in
renewable
energy
devices,
greatly
promoting
the
transformation
and
upgrading
of
structure.
Nonetheless,
performance
conversion
devices
hindered
by
large
overpotential
slow
kinetics
oxygen
electrocatalytic
reactions.
Recently,
single‐atom
catalysts
(SACs)
have
emerged
as
promising
contenders
field
because
their
exceptional
metal
atom
utilization,
distinctive
coordination
environment,
adjustable
electronic
properties.
This
review
presents
latest
advancements
design
Co‐based
SACs
for
electrocatalysis.
First,
OER
ORR
mechanisms
are
introduced.
Subsequently,
strategies
regulating
structure
summarized
three
aspects,
including
centers,
support
carriers.
A
particular
emphasis
given
to
relationship
between
properties
catalysts.
Afterward,
applications
explored.
Ultimately,
challenges
prospects
prospected.
Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
136(40)
Published: July 8, 2024
Abstract
The
local
acidity
at
the
anode
surface
during
electrolysis
is
apparently
stronger
than
that
in
bulk
electrolyte
due
to
deprotonation
from
reactant,
which
leads
deteriorated
electrocatalytic
performances
and
product
distributions.
Here,
an
anode‐electrolyte
interfacial
regulation
strategy
has
been
proposed
inhibit
acidification
of
enhance
activity
selectivity
anodic
reactions.
As
a
proof
concept,
CeO
2‐x
Lewis
acid
component
employed
as
supporter
load
Au
nanoparticles
accelerate
diffusion
enrichment
OH
−
toward
surface,
so
alcohol
oxidation
reaction.
result,
Au/CeO
exhibits
much
enhanced
lactic
81
%
electrochemical
693
mA⋅cm
−2
current
density
glycerol
reaction
compared
pure
Au.
Mechanism
investigation
reveals
introduced
promotes
mass
transport
concentration
on
thus
promoting
generation
through
simultaneous
enhancements
Faradaic
non‐Faradaic
processes.
Attractively,
can
be
used
for
electro‐oxidation
performance
variety
alcohols,
thereby
provides
new
perspective
efficient
electro‐oxidations
corresponding
electrocatalyst
design.
Chemistry - A European Journal,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 12, 2025
Abstract
Heteroatom
doping
and
structural
modification
can
significantly
improve
the
electrochemical
properties
of
carbon
materials,
but
it
is
difficult
to
achieve
synchronous
control
two.
To
this
end,
N‐doped
porous
material
(BCNK)
was
synthesized
using
bombyx
mori
silk
as
source,
melamine
KHCO
3
activators.
When
only
added,
prepared
(BCN)
increases
heteroatom
content.
(BCK)
specific
surface
area
pore
volume.
The
microstructure
heteratom
content
materials
be
controlled
simultaneously
by
adding
two
activators
at
same
time.
Electrochemical
tests
show
that
performance
BCNK
higher
than
BCN
BCK.
It
worth
mentioning
much
lower
BCK,
indicating
increasing
more
conducive
achieving
excellent
area.
This
study
not
provides
a
new
way
for
application
in
supercapacitors,
also
enables
researchers
re‐understand
relationship
between
structure
materials.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 4, 2024
An
effective
strategy
to
facilitate
oxygen
redox
chemistry
in
metal-air
batteries
is
introduce
a
mediator
into
the
liquid
electrolyte.
The
rational
utilization
of
mediators
accelerate
charging
kinetics
while
ensuring
long
lifetime
alkaline
Zn-air
challenging.
Here,
we
apply
commercial
acetylene
black
catalysts
achieve
an
I
