Energy & Fuels,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 23, 2025
Water
electrolysis
is
an
effective,
carbon-free
process
for
producing
clean
hydrogen
(H2).
However,
enhancing
H2
production
rates
through
alkaline
water
poses
significant
challenges,
particularly
in
developing
efficient,
durable,
and
cost-effective
nonplatinum
electrocatalysts
the
evolution
reaction
(HER).
In
this
study,
we
designed
binary
CoNi
ternary
PdCoNi
alloy
catalysts
on
nickel
foam
using
a
modified
chemical
vapor
deposition
method
HER
1.0
M
KOH.
The
incorporation
of
15%
atomic
Pd
significantly
enhances
catalytic
performance
alloy.
optimal
demonstrates
exceptional
metrics,
including
low
overpotentials
53
mV
at
10
mA
cm–2
330
1000
cm–2,
small
Tafel
slope
59
dec–1,
excellent
durability
over
24
h.
This
positions
it
as
promising
alternative
to
commercial
platinum
many
other
multicomponent
HER.
outstanding
can
be
attributed
synergistic
interaction
between
CoNi,
well
uniform
distribution
active
sites
porous
electrode
structure,
which
enhance
electron
transfer
reduce
adsorption
energy
catalyst
surface.
results
indicate
that
employing
effective
strategy
yield
robust
highly
alloys
with
minimal
noble
metal
content,
thereby
electrocatalytic
performance.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(28)
Published: March 15, 2024
Abstract
Surface
reconstruction
that
produces
real
active
species
for
catalytic
reactions
generally
occurs
during
electrocatalytic
water
splitting,
but
overcoming
the
level‐mass
activity‐stability
trade‐off
is
a
grand
challenge.
A
cation‐doping
in
conjunction
with
geometrical
topology
strategy
proposed
to
concurrently
realize
deep
and
self‐optimization
of
FeNi
phosphide
nanoarrays
an
electrochemical
activation
process.
The
doped
Zn
cation
induces
FeNiP@Fe
2
P
precatalyst
by
continuously
dissolving
Fe
re‐depositing
as
amorphous
FeOOH
solders
Ni
nanoparticles,
forming
small
ultra‐thin
nanosheets
abundant
amorphous‐crystalline
interfaces
structural
stability.
Moreover,
multichannel
exhibits
unusual
ability
optimize
their
morphology
via
finally
evolving
into
multi‐microchannel
tubular
comprising
interconnected‐nanosheets
very
loose
structure
enhanced
electrolyte
permeability,
mass
transfer,
accessibility
sites.
reconstructed
Zn‐Ni
P/FeOOH
superstructure
catalysts
reach
10
mA
cm
−2
current
density
at
ultra‐low
overpotential
11
mV
hydrogen
evolution
(HER).
Impressively,
when
assembled
two‐electrode
cell
Zn‐FeNiP@Zn‐Fe
anode
cathode,
it
delivers
densities
record
low
voltage
1.40
V.
This
provides
novel
avenue
promote
achieving
high
performance.
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
34(4)
Published: Oct. 24, 2023
Abstract
Developing
highly
effective
electrocatalysts
capable
of
bifunctionally
facilitating
hydrogen
evolution
reaction
(HER)
and
oxygen
(OER)
is
paramount
for
advancing
water
electrolysis.
Herein,
the
authors
report
heterogeneous
NiO‐Ni
3
Se
4
nanosheet
arrays
grown
on
Ti
C
2
T
x
MXene
(NiO‐Ni
/MXene)
with
asymmetrical
charge
distribution
as
bifunctional
to
enhance
electrocatalytic
performance
overall
splitting.
Impressively,
meticulously
engineered
/MXene
exhibits
remarkable
catalytic
activities
HER
OER
low
overpotentials
50
mV
260
at
10
mA
cm
−2
,
respectively.
Moreover,
electrolyzer
equipped
both
cathode
anode
demonstrates
outstanding
performance,
reaching
a
cell
voltage
1.54
V
maintaining
exceptional
long‐term
durability
over
h.
The
combination
theoretical
calculations
experiments
unveils
transfer
induced
heterointerfaces
in
heterogeneous,
leading
distributions,
which
modulate
adsorption/desorption
intermediates
kinetics.
This
study
presents
promising
approach
rationalizing
performance.
RSC Advances,
Journal Year:
2024,
Volume and Issue:
14(10), P. 6823 - 6847
Published: Jan. 1, 2024
The
development
of
non-noble
metal
based
and
cost-effective
electrocatalysts
for
water
splitting
has
attracted
significant
attention
due
to
their
potential
in
production
clean
green
hydrogen
fuel.
Discovered
2011,
a
family
two-dimensional
transition
carbides,
nitrides,
carbonitrides,
have
demonstrated
promising
performance
as
electro
catalysts
the
process
high
electrical
conductivity,
very
large
surface
area
abundant
catalytic
active
sites.
However,
their-long
term
stability
recyclability
are
limited
restacking
agglomeration
MXene
flakes.
This
problem
can
be
solved
by
combining
with
other
materials
create
hybrid
architectures
which
higher
electrocatalytic
than
pristine
MXenes.
Electrolysis
encompasses
two
half-cell
reactions,
evolution
reaction
(HER)
at
cathode
oxygen
(OER)
anode.
Firstly,
this
concise
review
explains
mechanism
splitting.
Then
it
provides
an
overview
recent
advances
about
applications
MXenes
HER,
OER
bifunctional
overall
Finally,
challenges
outlook
field
been
presented.
may
provide
further
understanding
role
MXene-based
develop
efficient
Small,
Journal Year:
2024,
Volume and Issue:
20(43)
Published: Aug. 15, 2024
Strategically
engineering
electrocatalysts
with
optimized
interfacial
electronic
architectures
and
accelerated
reaction
dynamics
is
pivotal
for
augmenting
hydrogen
generation
via
alkaline
water
electrolysis
on
an
industrial
scale.
Herein,
a
novel
triple-interface
heterostructure
Ni
Small Methods,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Feb. 22, 2024
Abstract
Developing
efficient
electrocatalysts
is
significant
for
the
commercial
application
of
electrocatalytic
water
splitting.
2D
materials
have
presented
great
prospects
in
electrocatalysis
their
high
surface‐to‐volume
ratio
and
tunable
electronic
properties.
Particularly,
MXene
emerges
as
one
most
promising
candidates
electrocatalysts,
exhibiting
unique
advantages
hydrophilicity,
outstanding
conductivity,
exceptional
stability.
However,
it
suffers
from
lacking
catalytic
active
sites,
poor
oxidation
resistance,
easy
stacking,
leading
to
a
suppression
performance.
Combining
with
other
an
effective
way
tackle
aforementioned
drawbacks.
In
this
review,
focus
on
accurate
synthesis
2D/2D
MXene‐based
catalysts
toward
First,
mechanisms
splitting
relative
properties
preparation
methods
MXenes
are
introduced
offer
basis
catalysts.
Then,
various
categories
catalysts,
such
wet‐chemical,
phase‐transformation,
electrodeposition,
etc.,
systematically
elaborated.
Furthermore,
in‐depth
investigations
conducted
into
internal
interactions
structure‐performance
relationship
Finally,
current
challenges
future
opportunities
proposed
development
aiming
enlighten
these
nanomaterials
