ACS Sustainable Chemistry & Engineering,
Год журнала:
2024,
Номер
12(6), С. 2313 - 2323
Опубликована: Янв. 27, 2024
The
proton
exchange
membrane
(PEM)
water
hydrolyzer
is
crucial
to
promoting
the
sustainable
development
of
hydrogen
energy
and
facilitating
large-scale
transformation.
However,
achieving
sustained
stable
oxygen
evolution
reaction
(OER)
in
acidic
solutions
presents
a
significant
challenge
for
noniridium
based
electrocatalysts.
Herein,
we
develop
Co3O4-supported
RuO2
electrocatalyst
with
optimized
catalyst–support
interface
interactions
breaking
activity–stability
trade-off
relationship
OER.
Through
detailed
electrochemical
experiments
characterization
analysis,
demonstrate
that
crystal
growth
Co3O4
support
can
be
precisely
regulated
by
modifying
ligand
layer-confined
domain
cobalt-based
metal–organic
frameworks
(Co-MOF)
precursor,
thereby
optimizing
RuO2/Co3O4
interface.
Due
weakened
self-sacrifice
effect
Co3O4,
active
heterogeneous
electron
interaction
impeccable
coating
effect,
OER
stability
RuO2/Co3O4–B3DC
significantly
improved
compared
while
preserving
intrinsic
activity.
Theoretical
modeling
suggests
formation
optimizes
adsorption
intermediates,
process.
Additionally,
anode
demonstrates
promising
potential
application
PEM
electrolyzers
variety
renewable
energy-driven
electrolytic
cells.
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(18)
Опубликована: Март 11, 2024
Abstract
The
electrocatalytic
performance
of
single‐site
catalysts
(SSCs)
is
closely
correlated
with
the
electronic
structure
metal
atoms.
Herein
we
construct
a
series
Pt
SSCs
on
heteroatom‐doped
hierarchical
carbon
nanocages,
which
exhibit
increasing
hydrogen
evolution
reaction
(HER)
activities
along
S‐doped,
P‐doped,
undoped
and
N‐doped
supports.
Theoretical
simulation
indicates
multi‐H‐atom
adsorption
process
due
to
low
coordination,
reasonable
descriptor
figured
out
evaluate
HER
activities.
Relative
C‐coordinated
Pt,
N‐coordinated
has
higher
reactivity
electron
transfer
N‐to‐Pt,
enriches
density
states
5
d
orbital
near
Fermi
level
facilitates
capturing
protons,
just
opposite
situations
for
P‐
S‐coordinated
ones.
stable
originates
from
kinetic
stability
throughout
process.
This
finding
provides
significant
guidance
rational
design
advanced
carbon‐based
Abstract
Crystalline
perovskite
oxides
are
regarded
as
promising
electrocatalysts
for
water
electrolysis,
particularly
anodic
oxygen
evolution
reactions,
owing
to
their
low
cost
and
high
intrinsic
activity.
Perovskite
with
noncrystalline
or
amorphous
characteristics
also
exhibit
electrocatalytic
performance
toward
electrochemical
splitting.
In
this
review,
a
fundamental
understanding
of
the
advantages
crystalline,
noncrystalline,
is
presented.
Subsequently,
recent
progress
in
development
advanced
electrolysis
by
engineering
breaking
crystallinity
reviewed,
special
focus
on
underlying
structure–activity
relationships.
Finally,
remaining
challenges
unsolved
issues
presented,
an
outlook
briefly
proposed
future
exploration
next‐generation
water‐splitting
based
oxides.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 28, 2025
Abstract
How
to
manipulate
heterostructure
engineering
achieve
high‐efficiency
oxygen
evolution
reaction
(OER)
remains
a
significant
challenge.
Herein,
promising
OER
electrocatalyst
with
IrNi
nanoalloys
(≈3.29
±
0.12
nm)
anchored
on
NiFe‐MOFs
(IrNi@NiFe‐MOFs),
exhibiting
promoted
phase
transformation
and
self‐optimized
dynamic
interface
electronic
structure,
via
one‐step
hydrothermal
method
is
designed
developed.
Specifically,
IrNi@NiFe‐MOFs
displays
excellent
performance
low
overpotential
of
228
mV
at
10
mA
cm
−2
,
small
Tafel
slope
37.6
dec
−1
robust
stability
100
.
Experimental
theoretical
calculations
identify
the
actual
active
sites
as
IrNi@NiFeOOH
further
reveal
that
structure
electron
by
engineering,
boost
its
catalytic
performance.
Moreover,
strong
interactions
unique
resulting
in
better
charge
redistribution
adaptive
bonding
(Ir─O─Ni/Fe
bonds).
This
therefore
plays
critical
role
promoting
transfer,
facilitating
intermediates,
reducing
energy
barrier
potential‐determining
step,
thereby
boosting
These
findings
provide
new
insights
into
development
MOF‐based
electrocatalysts
engineering.
Inorganic Chemistry Frontiers,
Год журнала:
2024,
Номер
11(16), С. 5345 - 5358
Опубликована: Янв. 1, 2024
Hierarchical
mesoporous
NDC-800
catalyst
with
rich
N–C
sites
and
defects
exhibits
ORR/OER
bifunction
activity
zinc–air
battery
properties
over
20%
Pt/C.
DFT
shows
that
N
doping
have
synergy,
significantly
improves
performance.
