The
development
of
efficient
and
reliable
acidic
oxygen
evolution
reaction
(OER)
electrocatalysts
represents
a
crucial
step
in
the
process
water
electrolysis.
RuO2,
benchmark
OER
catalyst,
suffers
from
limited
large-scale
applicability
due
to
its
tendency
toward
less
stable
lattice
mechanism
(LOM).
This
work
reports
synthesis
Co-doped
RuO2
nanosheets
with
unique
porous
morphology
composed
interconnected
grains
via
facile
molten
salt
method.
Co
doping
modulates
grain
size,
effectively
increasing
specific
surface
area
introducing
vacancies.
These
vacancies,
coupled
dopants,
form
Co-O(V)
motifs
that
tune
electronic
configuration
Ru.
structural
engineering
promotes
shift
detrimental
LOM
pathway
more
adsorbate
(AEM),
significantly
enhancing
stability
matrix
environments.
optimized
Co0.108-RuO2
catalyst
exhibits
low
overpotential
214
mV
at
10
mA
cm-2
remarkable
over
commercial
undoped
counterparts,
owing
synergistic
effect
increased
area,
motifs,
favored
AEM
pathway.
strategy
utilizing
engineer
morphology,
structure,
offers
promising
avenue
for
developing
high-performance
electrocatalysts.
Inorganic Chemistry,
Journal Year:
2023,
Volume and Issue:
62(28), P. 11271 - 11277
Published: June 29, 2023
The
introduction
of
high-entropy
and
high
specific
surface
area
into
Prussian
blue
analogues
(PBAs)
has
yet
to
create
interest
in
the
field
electrocatalytic
small-molecule
oxidation
reactions.
Herein,
we
synthesize
a
novel
class
(HE)
PBAs
with
via
simple
NH3·H2O-etching
strategy
systematically
investigate
performance
HE-PBA
toward
water,
ethanol,
urea
Importantly,
NH3·H2O-etched
(denoted
as
HE-PBA-e)
demonstrated
enhanced
compared
pristine
HE-PBA,
reaching
10
mA
cm-2
potentials
1.56,
1.41,
1.37
V
for
oxygen
evolution
reaction
(OER),
ethanol
(EOR),
(UOR),
respectively.
Deep
characterizations
suggest
that
NH3·H2O
etching
treatment
not
only
creates
rich
nanopores
enlarge
boosts
mass
transport
electron
transfer
but
also
facilitates
formation
high-valence
metal
oxides
improve
intrinsic
activity.
This
demonstration
how
increasing
state
metals
will
serve
governing
principle
rational
design
more
advanced
HE-PBAs
electrooxidation
small
molecules.
Angewandte Chemie International Edition,
Journal Year:
2023,
Volume and Issue:
63(3)
Published: Dec. 8, 2023
Simultaneous
optimization
of
the
energy
level
water
dissociation,
hydrogen
and
hydroxide
desorption
is
key
to
achieving
fast
kinetics
for
alkaline
evolution
reaction
(HER).
Herein,
well-dispersed
Ru
clusters
on
surface
amorphous/crystalline
CeO
Journal of Materials Chemistry A,
Journal Year:
2023,
Volume and Issue:
11(33), P. 17609 - 17615
Published: Jan. 1, 2023
A
PdRu–RuO
2
heterostructure
with
a
well-defined
PdRu
alloy
and
oxygen-vacancy-enriched
RuO
is
constructed
to
intensify
the
hydrogen
spillover
from
Ru
.
Dalton Transactions,
Journal Year:
2023,
Volume and Issue:
52(24), P. 8466 - 8472
Published: Jan. 1, 2023
Limited
by
single
metal
active
sites
and
low
electrical
conductivity,
designing
nickel-based
metal-organic
framework
(MOF)
materials
with
high
activity
durability
remains
a
challenge.
Here,
novel
class
of
two-dimensional
trimetallic
MOF
nanosheets
plentiful
sites,
rich
defects,
facilitated
mass
electron
transfer
channels
is
developed
as
efficient
electrocatalysts
for
boosting
oxygen
evolution
reaction
(OER).
The
unique
2D
nanosheet
structure
enlarges
the
area;
meanwhile,
organic
ligand
in
can
work
pillar
to
enlarge
interplanar
space
boost
ion
transportation,
synergistic
effect
between
multi-metal
effectively
promote
electrocatalytic
activity.
Interestingly,
after
an
electrochemical
activation
process,
optimized
NiFeZn
yield
abundant
enabling
them
deliver
overpotential
233
mV
at
10
mA
cm-2
much
smaller
Tafel
slope
37.8
dec-1.
More
importantly,
this
method
also
universal
synthesis
NiFe-MOF
family
achieving
outstanding
OER
performance.
These
findings
present
strategy
construction
OER.
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
34(1)
Published: Sept. 21, 2023
Abstract
The
concomitant
degradation
of
organic
contaminants
using
green
oxidants,
NaClO
and
O
3
,
exhibits
great
potential
to
mitigate
the
deleterious
impact
pollutants.
In
this
work,
electrochemical
ozone
production
(EOP)
chlorine
evolution
reaction
(CER)
performed
by
highly
active
electrocatalysts
composed
Ce‐Ni‐Sb‐SnO
2
Ru‐Ir‐Ce‐Ni‐Sb‐SnO
respectively,
are
presented.
high
selectivity
with
a
43.9%
Faraday
efficiency
in
EOP.
Incorporating
Ru
Ir
improves
CER
performance,
achieving
outstanding
up
98.3%.
Additionally,
it
achieves
low
overpotential
≈80
mV
at
10
mA
cm
−2
0.3
m
NaCl
(pH
=
6).
Theoretical
calculations
reveal
significant
multicomponent
oxides
on
intermediate
adsorption.
Ce,
Ni,
Sb
doping
SnO
enhances
adsorption
for
optimal
EOP
while
Cl
adsorption,
boosting
performance.
Further
investigations
into
decomposition
pesticides
antibiotics
demonstrate
that
collaborative
elicits
significantly
more
robust
kinetic
rate
comparison
their
individual
influences.
This
work
aims
shed
light
synthesis
metal
as
precursors
cost‐effective
preparation
advanced
oxidation
processes.
