ChemistrySelect,
Journal Year:
2024,
Volume and Issue:
9(44)
Published: Nov. 1, 2024
Abstract
Direct
seawater
electrolysis
confronts
pivotal
challenges
in
both
catalytic
efficiency
and
process
engineering
domains.
Herein,
a
metal
hybridization
strategy
is
proposed
for
crafting
an
HER
catalyst
featuring
Ru
nanoparticles
anchored
on
the
surface
of
CeO
2
integrated
with
conductive
carbon
(Ru/CeO
/C).
Ru/CeO
/C
heterostructure
exhibits
remarkable
electrocatalytic
prowess
towards
HER,
manifesting
overpotentials
merely
30
mV
at
current
density
10
mA
cm
−2
1
M
KOH,
surpassing
performance
commercial
Pt/C.
Notably,
escalate
to
41
338
respectively,
environments
KOH
supplemented
0.5
NaCl
3.5%
NaCl.
Meanwhile,
||
RuO
1.68
V
alkaline
overall
water
splitting.
Experimental
data
underscores
Ru‐CeO
interface's
role
modulating
charge,
intensifying
electronic
coupling,
refining
adsorption/desorption
energies.
High
area
integration
amplifies
activity,
stability,
kinetics
via
robust
interfacial
dynamics,
yielding
catalyst's
hydrogen
production
media.
This
work
may
provide
new
options
design
preparation
potential
directly
used
electrocatalysts.
ACS Energy Letters,
Journal Year:
2024,
Volume and Issue:
9(5), P. 2182 - 2192
Published: April 12, 2024
Introducing
oxygen
vacancies
into
Co-based
oxides
with
different
surface
structures
can
significantly
affect
their
coordination
environments
and
electronic
structures,
possibly
contributing
to
the
variation
of
electrocatalytic
evolution
reaction
(OER)
activity.
Herein,
were
introduced
Co3O4
cubes
truncated
octahedrons
uncover
effects
facets
(001)
(111)
on
intrinsic
OER
activity
oxygen-defective
Co3O4.
The
(001)-faceted
exhibited
a
lower
onset
overpotential
298
mV
than
that
multifaceted
(335
mV)
because
sufficient
lattice
participation
in
process.
Theoretical
calculations
revealed
vacancy
surfaces
upshift
O
2p
band
center
trigger
oxidation
mechanism
while
matched
well
absorbate
mechanism.
This
work
offers
new
insight
for
designing
electrocatalysts
by
selectively
introducing
defects
well-defined
crystal
facets.
Advanced Energy Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 2, 2025
Abstract
Single‐atom
catalysts
(SACs)
show
great
promise
for
electrocatalytic
water
splitting
due
to
their
exceptional
metal
atom
utilization
efficiency.
Herein,
it
is
demonstrated
that
Ru
single
atoms
(SAs)
anchored
on
Co
3
O
4
nanorod
arrays
(Ru
x
‐Co
,
where
the
loading
in
weight
percent)
afford
outstanding
performance
and
durability
oxygen
evolution
reaction
(OER),
hydrogen
(HER),
overall
across
a
wide
pH
range
(0.3–14).
8%
achieves
10
mA
cm⁻
2
at
overpotentials
of
only
214,
286,
138
mV
OER,
13,
72,
59
HER,
1
m
KOH,
0.1
PBS,
0.5
H
SO
respectively,
outperforming
benchmark
RuO
Pt/C
catalysts.
When
utilized
as
anode
cathode
an
anion
exchange
membrane
electrolyzer
(AEMWE),
cell
voltage
2.06
V
required
achieve
A
.
Chronopotentiometry
verified
possesses
excellent
stability
during
both
OER
HER
100
acidic,
neutral,
alkaline
media.
Density
functional
theory
(DFT)
calculations
reveal
abundant
Ru‐O‐Co
interfaces
shift
d‐band
center
from
−1.72
eV
(for
cluster/Co
)
−1.58
SA/Co
),
creating
more
energetically
favorable
pathways
HER.
Catalysts,
Journal Year:
2025,
Volume and Issue:
15(3), P. 211 - 211
Published: Feb. 22, 2025
Designing
efficient
and
cost-effective
electrocatalysts
is
crucial
for
the
large-scale
development
of
sustainable
hydrogen
energy.
Amorphous
catalysts
hold
great
promise
application
due
to
their
structural
flexibility
high
exposure
active
sites.
We
report
a
novel
method
in
situ
growth
amorphous
CoNiRuOx
nanoparticle
structures
(CoNiRuOx/NF)
on
nickel
foam
substrate.
In
1
m
KOH,
CoNiRuOx/NF
achieves
current
density
10
mA/cm2
with
evolution
reaction
(HER)
overpotential
only
43
mV
remains
stable
over
100
h
at
mA/cm2.
An
alkaline
electrolyzer
assembled
as
cathode
delivers
2.97
times
higher
than
that
an
IrO2||Pt/C
electrode
pair
potential
2
V
exhibits
excellent
long-term
durability
exceeding
h.
Experimental
results
reveal
combined
replacement
corrosion
reactions
facilitate
formation
structure.
This
work
provides
valuable
insights
developing
scalable
catalysts.
Applied Physics Reviews,
Journal Year:
2024,
Volume and Issue:
11(4)
Published: Oct. 8, 2024
Significant
efforts
have
been
dedicated
to
hydrogen
production
through
photocatalytic
water
splitting
(PWS)
over
the
past
five
decades.
However,
achieving
commercially
viable
solar-to-hydrogen
conversion
efficiency
in
PWS
systems
remains
elusive.
These
face
intrinsic
and
extrinsic
challenges,
such
as
inadequate
light
absorption,
insufficient
charge
separation,
limited
redox
active
sites,
low
surface
area,
scalability
issues
practical
designs.
To
address
these
issues,
conventional
strategies
including
heterojunction
engineering,
plasmonics,
hybridization,
lattice
defects,
sensitization,
upconversion
processes
extensively
employed.
More
recently,
innovative
hybrid
like
photonic
crystal-assisted
polarization
field-assisted
emerged,
which
improve
absorption
separation
by
harnessing
slow
photon
effect,
multiple
scattering,
piezoelectric,
pyroelectric,
ferroelectric
properties
of
materials.
This
review
article
aims
provide
a
comprehensive
examination
summary
new
synergistic
approaches,
integrating
plasmonic
effects,
processes,
crystal
photocatalysis.
It
also
explores
role
temperature
suppressing
exciton
recombination
during
photothermic
highlights
emerging
effects
magnetic
fields,
periodic
illumination,
many-body
large-hole
polaron,
anapole
excitations,
hold
significant
potential
advance
technology
facilitate
renewable
generation.
Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
12(24), P. 14372 - 14379
Published: Jan. 1, 2024
The
interfacial
interaction
between
Ru
nanoparticles
and
a
Cu
support
in
the
Ru–Cu
aerogel
effectively
modulates
electronic
structure
reduces
energy
barrier
for
HER,
therefore
leading
to
high
HER
electrocatalytic
property.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 6, 2025
Hydrogen
spillover-based
binary
(HSBB)
system
has
attracted
significant
attention
in
alkaline
hydrogen
evolution
reaction
(HER).
Accelerating
spillover
the
HSBB
is
crucial
for
HER
activity.
Herein,
a
highly
efficient
developed
by
anchoring
nano-Ru
on
oxygen
vacancy
(Vo)
rich
amorphous/crystal
ZrO
