Catalysts,
Journal Year:
2024,
Volume and Issue:
14(8), P. 491 - 491
Published: July 31, 2024
Tuning
the
chemical
and
structural
environment
of
Ru-based
nanomaterials
is
a
major
challenge
for
achieving
active
stable
hydrogen
evolution
reaction
(HER)
electrocatalysis.
Here,
we
anchored
ultrafine
Ru
nanoparticles
(with
size
~4.2
nm)
on
hierarchical
Ni2P
array
(Ru/Ni2P)
to
enable
highly
efficient
HER.
The
promoter
weakened
adsorption
proton
sites
by
accepting
electrons
from
nanoparticles.
Moreover,
endowed
catalysts
with
large
surface
area
open
structure.
Consequently,
as-fabricated
Ru/Ni2P
electrode
displayed
low
overpotential
57
164
mV
at
HER
current
densities
10
50
mA
cm−2,
respectively,
comparable
state-of-the-art
Pt
catalysts.
can
operate
stably
96
h
cm−2
without
performance
degradation.
After
pairing
commercial
RuO2
anode,
anode
catalyzed
overall
water
splitting
1.73
V
density
which
was
0.16
lower
than
its
Ni
counterpart.
In
situ
Raman
studies
further
revealed
optimized
Ru-active
promoter,
thus
enhancing
electrocatalytic
performance.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 27, 2025
Abstract
The
integration
of
the
hydrogen
evolution
reaction
(HER)
with
glycerol
oxidation
(GOR)
presents
a
promising
strategy
for
production
high‐value
chemicals.
Herein,
strongly
electronically
coupled
Co@V‐WO
x
material
is
presented
an
amorphous
nanosheet
morphology,
synthesized
via
one‐step
electrodeposition
method.
Experimental
and
theoretical
investigations
reveal
that
V
doping
induces
robust
electronic
interactions
between
Co
V‐WO
host
through
formation
Co─O─V/W
interfacial
bridge
bonds,
enhancing
electron
transfer
capability
superior
activity.
As
result,
catalyst
achieves
exceptionally
low
potential
−102
mV
1.32
at
100
mA
cm⁻
2
,
along
remarkable
Faradaic
efficiency
95.4%
formate
1.40
V.
A
two‐electrode
electrolyzer
based
on
demonstrates
≈100%
evolution,
exceeding
92.8%
rate
59.4
mg
h⁻¹
formate,
as
well
outstanding
stability
over
300
h
surpassing
those
previously
reported
Co‐based
electrocatalysts.
in
situ
spectroscopic
analyses
simulations
further
confirm
facilitates
kinetics
by
promoting
active
species
key
intermediates
while
lowering
energy
barriers
electrolysis.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 18, 2025
Abstract
Electrochemical
green
hydrogen
production
via
water
splitting
is
an
attractive
and
sustainable
pathway;
however,
the
sluggish
kinetics
of
anodic
oxygen
evolution
reaction
still
a
critical
challenge.
In
this
study,
effective
electrocatalyst
engineering
approach
demonstrated
by
preparing
innovative
hybrid
ruthenium
d‐orbitals‐regulated
nanoclusters
embedding
within
functionalized
hollow
Ti
3
C
2
MXene
networks
(Ru
0.91
Ni
0.09
‐N/O‐Ti
)
to
promote
hydrazine‐assisted
production.
A
specific
charge
redistribution
revealed,
locally
concentrating
at
interfaces
derived
from
stable
Ru(Ni)‐N/O‐Ti
coordination
d
–
p
orbital
hybridization.
The
transfer
effect
Ru
structure
N/O‐Ti
tailors
electronic
features
sites
enable
reasonable
adsorption/desorption
toward
reactant
intermediates.
requires
overpotential
only
29.3
mV
for
cathodic
low
potential
−29.9
hydrazine
oxidation
reach
10
mA
cm
−2
,
showing
excellent
stability.
system
based
on
electrodes
delivers
small
cell
voltages
0.02
V
0.92
industrial
current
level
1.0
.
This
work
may
open
new
electrocatalysis
strategy
lab
scale
industry
robust
efficient
Analytical Chemistry,
Journal Year:
2024,
Volume and Issue:
96(45), P. 18239 - 18245
Published: Nov. 4, 2024
Wearable,
noninvasive
sweat
sensors
enable
real-time
monitoring
of
metabolites
in
human
health
management.
However,
the
commercial
enzyme-based
and
currently
nonenzymatic
glucose
sensor
represents
sluggish
oxidation
kinetics
a
narrow
sensing
range.
Rational
design
sensitive
materials
is
significant
yet
faces
huge
challenge.
Herein,
we
construct
single-atom
Pt
supported
on
NiCo-LDH/Ti
Applied Physics Reviews,
Journal Year:
2024,
Volume and Issue:
11(4)
Published: Dec. 1, 2024
Electrocatalysis
is
crucial
for
sustainable
energy
solutions,
focusing
on
harvesting,
storage,
and
pollution
control.
Despite
the
development
of
various
electrocatalysts,
understanding
dynamic
processes
in
electrochemical
reactions
still
limited,
hindering
effective
catalyst
design.
In
situ
Raman
spectra
have
emerged
as
a
critical
tool,
providing
molecular-level
insights
into
surface
under
operational
conditions
discussing
their
development,
advantages,
configurations.
This
review
emphasizes
new
findings
at
catalyst–electrolyte
interface,
especially
interface
water
molecule
state,
during
hydrogen
evolution
reaction
oxygen
recent
years.
Finally,
challenges
future
directions
techniques
electrocatalysis
are
discussed,
emphasizing
importance
advancing
guiding
novel
Catalysts,
Journal Year:
2024,
Volume and Issue:
14(8), P. 491 - 491
Published: July 31, 2024
Tuning
the
chemical
and
structural
environment
of
Ru-based
nanomaterials
is
a
major
challenge
for
achieving
active
stable
hydrogen
evolution
reaction
(HER)
electrocatalysis.
Here,
we
anchored
ultrafine
Ru
nanoparticles
(with
size
~4.2
nm)
on
hierarchical
Ni2P
array
(Ru/Ni2P)
to
enable
highly
efficient
HER.
The
promoter
weakened
adsorption
proton
sites
by
accepting
electrons
from
nanoparticles.
Moreover,
endowed
catalysts
with
large
surface
area
open
structure.
Consequently,
as-fabricated
Ru/Ni2P
electrode
displayed
low
overpotential
57
164
mV
at
HER
current
densities
10
50
mA
cm−2,
respectively,
comparable
state-of-the-art
Pt
catalysts.
can
operate
stably
96
h
cm−2
without
performance
degradation.
After
pairing
commercial
RuO2
anode,
anode
catalyzed
overall
water
splitting
1.73
V
density
which
was
0.16
lower
than
its
Ni
counterpart.
In
situ
Raman
studies
further
revealed
optimized
Ru-active
promoter,
thus
enhancing
electrocatalytic
performance.
