Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
64(1)
Published: Aug. 28, 2024
M-N-C-type
single-atom
catalysts
(SACs)
are
highly
efficient
for
the
electrocatalytic
oxygen
evolution
reaction
(OER).
And
isolated
metal
atoms
usually
considered
real
active
sites.
However,
oxidative
structural
of
coordinated
N
during
OER
will
probably
damage
structure
M-N-C,
hence
resulting
in
a
completely
different
mechanism.
Here,
we
reveal
aggregation
M-N-C
materials
alkaline
OER.
Taking
Ni-N-C
as
an
example,
multiple
characterizations
show
that
on
surface
is
almost
dissolved
form
NO
Chemical Communications,
Journal Year:
2024,
Volume and Issue:
60(53), P. 6817 - 6820
Published: Jan. 1, 2024
In
this
report,
we
have
developed
a
novel
CA
interface
between
crystalline
and
amorphous
nickel
sulfide
which
required
low
overpotential
of
15
mV
for
10
mA
cm
−2
with
the
intrinsic
activation
alkaline
hydrogen
evolution
reaction.
EcoMat,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 12, 2024
Abstract
The
most
feasible
technique
for
producing
green
hydrogen
is
water
electrolysis.
In
recent
years,
there
has
been
significant
study
conducted
on
the
use
of
transition
metal
compounds
as
electrocatalysts
both
anodes
and
cathodes.
Peoples
have
attempted
several
strategies
to
improve
electrocatalytic
activity
their
original
structure.
One
such
involves
introducing
rare
earth
metals
or
creating
heterostructures
with
based
metals.
incorporation
significantly
enhances
by
many
folds,
while
offer
structural
stability
ability
manipulate
electronic
properties
system.
These
factors
led
a
boom
in
investigations
metal‐based
electrocatalysts.
There
currently
pressing
demand
review
article
that
can
provide
comprehensive
overview
scientific
advancements
elucidate
mechanistic
aspects
impact
lanthanide
doping.
This
begins
explaining
structure
lanthanides.
We
next
examine
aspects,
followed
doping
heterostructure
formation
electrolysis
applications.
It
expected
this
particular
effort
will
benefit
broad
audience
stimulate
more
research
area
interest.
image
Carbon Energy,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 3, 2025
Abstract
Step
heterostructures
are
predicted
to
hold
a
profound
catalytic
performance
because
of
the
rearranged
electronic
structure
at
their
interface.
However,
limitations
in
morphology
prepared
by
hydrothermal
reactions
or
molten
salt‐assisted
strategies
make
it
challenging
directly
assess
charge
distribution
and
evaluate
single
interface's
hydrogen
evolution
reaction
(HER)
performance.
Here,
we
two‐dimensional
MoO
2
/MoS
step
with
large
specific
surface
area
chemical
vapor
deposition
method.
Surface
Kelvin
probe
force
microscopy
electrical
transport
measurement
verified
asymmetric
By
fabricating
series
micro
on‐chip
electrocatalytic
devices,
investigate
HER
for
interface
confirm
that
is
essential
superior
We
experimentally
confirmed
enhancement
heterostructure
attributed
This
work
lays
foundation
designing
highly
efficient
systems
based
on
heterostructures.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 2, 2025
Abstract
The
hydrazine‐assisted
water
splitting
(HzAWS)
is
promising
for
energy‐saving
hydrogen
production.
However,
developing
efficient
bifunctional
catalysts
that
exert
evolution
reaction
(HER)
and
hydrazine
oxidation
(HzOR)
at
industrial‐grade
current
densities
remains
challenging.
Here,
Ru
C
‐NiCoP
catalyst,
ruthenium
clusters
(Ru
)
immobilized
onto
NiCoP,
developed
to
elucidate
the
superior
performance
of
in
enhancing
electrocatalytic
activity
over
single
atoms
SA
).
achieves
10
100
mA
cm
−2
HER
HzOR
with
working
potentials
−10
−89
mV,
respectively,
outperforming
(−16
−65
mV).
During
HzAWS,
a
cell
voltage
reduction
1.77
V
300
observed
compared
overall
splitting.
Density
functional
theory
calculations
reveal
improves
adsorption
energy
H
2
O
N
4
,
optimizes
H*
intermediate
desorption,
reduces
dehydrogenation
barrier
from
*N
3
.
Additionally,
direct
fuel
anode
delivers
an
impressive
power
density
226
mW
enables
self‐powered
production
system,
achieving
unprecedented
rate
4.9
mmol
h
−1
This
work
offers
new
perspective
on
sub‐nanoscale
electrocatalysts
advancing
practical
techniques.
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
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 21, 2025
Abstract
Ruthenium
(Ru)
–based
catalysts
have
been
considered
a
promising
candidate
for
efficient
sustainable
hydrogen
and
chlor‐alkali
co‐production.
Theoretical
calculations
disclosed
that
the
hollow
sites
on
Ru
surface
strong
adsorption
energies
of
H
Cl
species,
which
inevitably
leads
to
poor
activity
cathodic
evolution
reaction
(HER)
anodic
chlorine
(CER),
respectively.
Furthermore,
it
confirmed
anchoring
Lewis
acid
oxide
nanoparticles
such
as
MgO
can
induce
formation
onion‐like
charge
distribution
atoms
around
nanoparticles,
thereby
exposing
Ru‐bridge
at
interface
excellent
accelerate
both
HER
CER.
Under
guidance
theoretical
calculations,
novel
dispersed
(MgO
x
‐Ru)
electrocatalyst
is
successfully
prepared.
In
strongly
alkaline
saline
media,
‐Ru
recorded
CER
electrocatalytic
with
very
low
overpotential
19
mV
74
current
density
10
mA
cm
−2
,
More
stirringly,
electrochemical
test
electrodes
under
simulated
electrolysis
conditions
demonstrated
superior
performance
industrial
commercial
20
wt%
Pt/C
dimensionally
stable
anode
(DSA).
