Enhanced Li-ion battery performance based on multisite oxygen vacancies in WO3-x@rGO negative electrode
Chemical Engineering Journal,
Год журнала:
2024,
Номер
498, С. 155383 - 155383
Опубликована: Авг. 30, 2024
Язык: Английский
Mechanism, modification and stability of tungsten oxide-based electrocatalysts for water splitting: A review
Journal of Energy Chemistry,
Год журнала:
2024,
Номер
99, С. 23 - 49
Опубликована: Июль 26, 2024
Язык: Английский
Chromium‐Doped NiBP Micro‐Sphere Electrocatalysts for Green Hydrogen Production under Industrial Operational Conditions
Small Methods,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 19, 2025
Abstract
Wide
spread
adaptation
of
green
hydrogen
can
help
to
mitigate
the
serious
climate
issues,
increasing
global
energy
demands
and
development
advanced
electrocatalysts
robust
under
industrial
conditions
is
one
key
technological
challenges.
Herein,
chromium‐doped
nickel‐boride‐phosphide
(Cr/NiBP)
micro
sphere
(MS)
electrocatalyst
demonstrated
via
a
two‐step
hydrothermal
approach
along
with
post‐annealing.
The
Cr/NiBP
MS
demonstrates
low
evolution
reaction
oxygen
evaluation
over
potentials
78
250
mV
at
100
mA
cm
−2
in
1
m
KOH,
out
performing
most
reported
catalysts.
ǁ
exhibits
only
1.54
V
KOH
surpasses
benchmark
RuO
2
(+)
Pt/C
(−)
up
2000
,
which
sets
it
as
best
bifunctional
electrocatalysts.
Impressively,
maintains
stable
performance
for
240
h
1000
6
60°C,
demonstrating
rapid
response,
anti‐corrosion
resistance,
structural
integrity
meet
operational
conditions.
Further,
super‐low
cell‐voltage
2.25
.
small
amount
Cr
atoms
incorporation
significantly
enhance
active
sites
intrinsic
properties,
accelerating
water
dissociation
intermediate
formation.
Язык: Английский
Co–Fe–Mo Phosphides’ Triphasic Heterostructure Loaded on Nitrogen-Doped Carbon Nanofibers by Electrospinning as Efficient Bifunctional Electrocatalysts for Overall Water Splitting
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 3, 2025
The
rational
design
of
efficient
and
stable
bifunctional
electrocatalysts
for
the
hydrogen
evolution
reactions
(HER)
oxygen
(OER)
poses
a
significant
challenge
in
realizing
environmentally
friendly
production
through
electrocatalytic
water
splitting.
construction
heterostructure
catalysts,
coexisting
multiple
components,
represents
favorable
approach
increasing
active
sites,
modulating
electronic
structure,
accelerating
charge
transfer,
decreasing
reaction
energy
barriers,
synergistically
enhancing
performance.
In
this
study,
triphasic
metal
phosphides'
among
CoP,
FeP,
MoP4
loaded
on
nitrogen-doped
carbon
nanofibers
(labeled
as
CoP-FeP-MoP4@NC)
was
successfully
synthesized
electrospinning
other
subsequent
steps
electrocatalyst
material
Benefiting
from
strong
interaction
synergistic
effect
these
CoP-FeP-MoP4@NC
exhibits
facile
kinetics
high
activity
under
alkaline
conditions
with
overpotentials
(η)
222
75
mV
at
current
density
10
mA
cm-2
OER
HER,
respectively,
well
low
cell
voltage
1.47
V
overall
Moreover,
catalyst
shows
great
long-term
stability
about
100
cm-2.
functional
theory
calculations
revealed
that
CoP-FeP-MoP4
can
reduce
Gibbs
free
associated
H2O
dissociation
adsorption
during
rate-determining
step
OER,
increase
states
near
Fermi
level,
optimize
work
function
electrons,
improving
electrical
conductivity
capacity.
This
study
presents
an
splitting,
concept
provides
insights
future
advanced
electrocatalysts.
Язык: Английский
Tungsten–Cobalt Oxalate with Multiple Catalytic Sites as Efficient Electrocatalyst for Boosting Overall Water Splitting
Kuppusamy Rajan,
Dhanasingh Thiruvengadam,
M.R. Suresh Kumar
и другие.
ACS Applied Engineering Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 25, 2025
Язык: Английский
In-situ construction of vertically Fe doped CoMoP nanosheet honeycomb as bifunctional electrocatalysts for efficient overall water splitting
Journal of Colloid and Interface Science,
Год журнала:
2024,
Номер
682, С. 1094 - 1103
Опубликована: Дек. 9, 2024
Язык: Английский
Carbon Nanofiber-Encapsulated FeCoNiCuMn Sulfides with Tunable S Doping for Enhanced Oxygen Evolution Reaction
Catalysts,
Год журнала:
2024,
Номер
14(9), С. 626 - 626
Опубликована: Сен. 17, 2024
The
oxygen
evolution
reaction
(OER)
stands
out
as
a
key
electrochemical
process
for
the
conversion
of
clean
energy.
However,
practical
implementation
OER
is
frequently
impeded
by
its
slow
kinetics
and
necessity
scarce
expensive
noble
metal
catalysts.
High-entropy
transition
sulfides
(HETMS)
stand
at
forefront
catalysts,
renowned
their
exceptional
catalytic
performance
diversity.
Herein,
we
have
synthesized
HETMS
catalyst,
(FeCoNiCuMn50)S2,
encapsulated
within
carbon
nanofibers
through
one-step
involving
synergistic
application
electrospinning
chemical
vapor
deposition.
By
precisely
controlling
doping
levels
sulfur,
demonstrated
that
sulfur
incorporation
significantly
increases
exposed
surface
area
alloy
particles
on
optimizes
electronic
configuration
elements.
These
findings
reveal
instrumental
in
substantial
improvement
catalyst’s
performance.
Notably,
catalyst
showed
optimal
activity
sulfur-to-metal
atom
ratio
2:1,
delivering
an
overpotential
254
mV
current
density
10
mA
cm−2
1.0
M
KOH
solution.
Furthermore,
(FeCoNiCuMn50)S2
exhibited
remarkable
stability,
underscoring
potential
efficient
robust
electrocatalyst
sustainable
energy
applications.
Язык: Английский