ChemistrySelect,
Journal Year:
2024,
Volume and Issue:
9(35)
Published: Sept. 12, 2024
Abstract
Hydrogen
is
an
important
energy
carrier
without
carbon
emissions.
To
achieve
a
carbon‐neutral
world,
the
demand
for
hydrogen
very
significant.
In
process
of
producing
green
hydrogen,
water
splitting
using
electrocatalysts
desirable
among
many
methods.
The
ideal
electrocatalyst
evolution
platinum
group
metals;
however,
limitations
high
cost
and
low
abundance
hinder
large‐scale
production.
Hence,
researchers
are
trying
to
develop
materials
from
more
abundant
less
expensive.
in
this
review,
we
focus
on
fundamental
principles
reaction
(HER)
various
synthesis
methods
strategies.
From
material
perspective,
nickel
sulfide‐based
nanomaterials
different
phases
during
last
four
years
development.
We
compared
parameters
concerning
strategies
chosen.
Finally,
have
also
discussed
future
challenges.
Ultimately,
by
synthesizing
collective
knowledge
amassed
field
HER
research,
review
endeavors
offer
comprehensive
resource
researchers,
engineers,
policymakers
striving
advance
hydrogen‐based
technologies.
doing
so,
aspire
foster
continued
innovation
collaboration
toward
realizing
sustainable
powered
hydrogen.
Langmuir,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 24, 2024
The
rational
construction
of
highly
efficient
electrocatalysts
for
the
oxygen
evolution
reaction
(OER)
plays
a
critical
role
in
energy
conversion
systems.
Designing
heterostructures
is
common
and
effective
strategy
to
improve
performance
electrocatalysts.
In
this
paper,
an
MnS
Energy & Fuels,
Journal Year:
2025,
Volume and Issue:
39(2), P. 1375 - 1383
Published: Jan. 2, 2025
The
production,
conversion
and
storage
of
energy
based
on
electrocatalysis,
mainly
assisted
by
oxygen
evolution
reaction
(OER),
plays
a
crucial
role
in
alkaline
water
electrolyzers
(AWEs)
fuel
cells.
Nevertheless,
the
insufficient
availability
highly
efficient
catalyst
materials
at
reasonable
cost
that
overcome
sluggish
electrochemical
kinetics
OER
is
one
significant
obstacles.
Herein,
we
report
fast
facile
synthesis
vapor
phase
deposition
dual-phase
nickel
sulfide
(Ni-sulfide)
using
low-temperature
annealing
presence
H2S
demonstrated
as
an
for
to
address
issues
with
kinetics.
Ni-sulfide
structures
consist
densely
packed
10-50
μm
microcrystals
40-50
individual
layers,
such
NiS
Ni7S6.
As
electrocatalyst,
exhibits
excellent
activity
achieving
current
density
10
mA/cm2
overpotential
(η10)
0.29
V
stability
over
50
h.
Besides,
displays
considerable
robustness
conditions
forms
OER-active
Ni-oxide/hydroxide
species
during
process.
Using
energy-efficient
method,
fabricated
unique
crystalline
nanodesign
could
open
new
pathways
controlled
high-efficiency
group
electrocatalysts
long-time
stable
catalytic
activity.
Catalysts,
Journal Year:
2025,
Volume and Issue:
15(2), P. 136 - 136
Published: Feb. 1, 2025
A
novel
all-in-one
catalytic
electrode
containing
a
Ni3S2@NiS
heterostructure
(Ni3S2@NiS/Ni-Net)
was
in
situ
synthesized
on
an
industrial
nickel
net
(Ni-Net)
using
one-step
solvothermal
method,
which
ethanol
the
solvent
and
thioacetamide
sulfur
source,
respectively.
The
effects
of
addition
amount
source
composition,
morphology,
electronic
structure
heterostructures
their
electrocatalytic
hydrogen
evolution
reaction
(HER)
activities
were
investigated.
When
2
mmol
introduced,
prepared
Ni3S2@NiS/Ni-Net
with
nanorod-like
required
overpotentials
207
322
mV
to
drive
current
densities
100
500
mA/cm2,
respectively,
1
M
KOH
solution,
only
needed
overpotential
429
deliver
1000
mA/cm2.
Meanwhile,
can
operate
stably
at
high
density
90
mA/cm2
under
harsh
alkaline
conditions
for
least
h.
results
show
that
has
activity
stable
HER
performance
density,
provides
new
idea
development
high-efficiency
electrodes
production.
