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.
Energy Science & Engineering,
Journal Year:
2024,
Volume and Issue:
12(5), P. 1934 - 1968
Published: March 6, 2024
Abstract
The
rapidly
growing
global
need
for
environmentally
friendly
energy
solutions
has
inspired
extensive
research
and
development
efforts
aimed
at
harnessing
the
potential
of
hydrogen
energy.
Hydrogen,
with
its
diverse
applications
relatively
straightforward
acquisition,
is
viewed
as
a
promising
carrier
capable
tackling
pressing
issues,
such
carbon
emissions
reduction
storage.
This
study
conducts
preliminary
investigation
into
effective
generation
storage
systems,
encompassing
methods
like
water
electrolysis,
biomass
reforming,
solar‐driven
processes.
Specifically,
focuses
on
assessing
nanostructured
catalysts
innovative
materials
to
enhance
productivity
versatility
systems.
Additionally,
utilization
novel
not
only
improves
capacity
safety
but
also
opens
up
possibilities
inventive
applications,
including
on‐demand
release
efficient
transportation.
Furthermore,
critical
factors
catalyst
design,
material
engineering,
system
integration,
technoeconomic
viability
are
examined
identify
challenges
chart
paths
future
advancements.
emphasizes
importance
fostering
interdisciplinary
collaborations
advance
technologies
contribute
sustainable
future.
Small,
Journal Year:
2024,
Volume and Issue:
20(33)
Published: April 10, 2024
Water
electrolysis
is
among
the
recent
alternatives
for
generating
clean
fuels
(hydrogen).
It
an
efficient
way
to
produce
pure
hydrogen
at
a
rapid
pace
with
no
unwanted
by-products.
Effective
and
cheap
water-splitting
electrocatalysts
enhanced
activity,
specificity,
stability
are
currently
widely
studied.
In
this
regard,
noble
metal-free
transition
metal-based
catalysts
of
high
interest.
Iron
sulfide
(FeS)
one
essential
water
splitting
because
its
unique
structural
electrochemical
features.
This
article
discusses
significance
FeS
nanocomposites
as
oxygen
evolution
reaction
(OER),
(HER),
reduction
(ORR),
overall
splitting.
have
been
studied
also
energy
storage
in
form
electrode
materials
supercapacitors
lithium-
(LIBs)
sodium-ion
batteries
(SIBs).
The
characteristics
nanocomposites,
well
synthesis
processes,
discussed
work.
discussion
correlates
these
features
requirements
associated
reactions.
As
result,
study
provides
road
map
researchers
seeking
economically
viable,
environmentally
friendly,
fields
green
production
storage.
Inorganic Chemistry Frontiers,
Journal Year:
2023,
Volume and Issue:
10(24), P. 7204 - 7211
Published: Jan. 1, 2023
The
first-ever
demonstration
of
Ni
7
S
6
/NF-based
electrolyzer
with
sugar
or
orange-juice
as
active
electrolyte
for
an
alternative
anodic
oxidation
reaction
in
water-electrolysis
and
achieving
a
higher
rate
green-hydrogen
at
lower
cell
voltage.
ACS Applied Nano Materials,
Journal Year:
2024,
Volume and Issue:
7(1), P. 661 - 671
Published: Jan. 3, 2024
In
electrochemistry,
predicting
the
mechanistic
pathway
for
hydrogen
evolution
reaction
(HER)
can
be
challenging,
as
it
is
constantly
altered
by
electronic
and
geometrical
structures
of
surface
electrocatalyst.
However,
through
a
combined
experimental
theoretical
approach,
we
have
successfully
demonstrated
functions
nitrogen
(N)
dopants
in
NiS/Ni3S4
catalysts.
Here,
developed
cost-effective,
environmentally
friendly,
highly
efficient
electrochemical
HER
catalyst
using
N-doped
nanowire
via
hydrothermal
approach
calcination
method
to
incorporate
different
concentrations
(1,
3,
6,
8,
10%)
nitrogen.
These
electrocatalysts
were
synthesized
efficiently
produce
from
water.
Interestingly,
6%
nitrogen-doped
electrocatalyst
exhibited
superior
catalytic
HER.
The
inclusion
N
has
distinct
functions,
including
activation
activity
augmenting
number
active
sites
on
its
surface.
This
enables
second-order
H2
production,
which
been
shown
extensive
analyses.
nanowires
identified
density
functional
theory-based
calculations,
reveal
that
strong
hybridizations
3d
orbitals
Ni
2p
S
near
Fermi
level
result
distribution
conduction
charges
across
Our
investigation
indicates
promising
sustainable
production
electrolysis
Inorganic Chemistry,
Journal Year:
2023,
Volume and Issue:
62(51), P. 21240 - 21246
Published: Dec. 11, 2023
Electrochemical
water
splitting,
a
crucial
reaction
for
renewable
energy
storage,
demands
highly
efficient
and
stable
catalysts.
Defect
interface
engineering
has
been
widely
acknowledged
to
play
pivotal
role
in
improving
electrocatalytic
performance.
Herein,
we
demonstrate
facile
strategy
construct
sulfur
vacancy
(Sv)-engineered
Co3S4/MoS2-interfaced
nanosheet
arrays
modulate
the
electronic
structure
situ
reduction
with
NaBH4.
The
abundant
vacancies
well-arranged
Sv-Co3S4/MoS2
lead
pronounced
properties
hydrogen
oxygen
evolution
reactions
(HER/OER)
an
alkaline
medium,
observed
overpotentials
of
156
209
mV
at
10
mA
cm-2,
respectively.
Additionally,
as
bifunctional
electrocatalyst,
requires
cell
voltage
1.67
V
cm-2
overall
splitting
exhibits
long-term
stability
activity
sustained
more
than
20
h.
This
study
provides
novel
approach
producing
transition
metal
compound-interfaced
electrocatalysts
rich
under
mild
conditions,
showcasing
their
potential
applications.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 2, 2024
Abstract
Aiming
to
efficiently
expedite
alkaline
overall
water
splitting
(OWS)
by
addressing
challenges
such
as
sluggish
kinetics
and
limited
stability,
a
hollow
Fe‐doped
Ni(OH)
2
‐NiS@Ni(OH)
nanorod
array
with
surface
nanosheets
is
devised,
featuring
high‐index
(101)‐NiS(211)
heterostructural
interface
an
upshifted
d
‐band
center.
This
nanoarchitecture
intensifies
the
adsorption
interaction
of
H
O
OH
−
reactants
on
electrocatalyst
surface,
suitably
bonds
*
intermediate
in
hydrogen
evolution
reaction
(HER)
accelerates
electron
movement
H,
minimizes
energy
requirement
rate‐limiting
phase
(
→
O)
oxygen
(OER)
facilitating
O─H
cleavage
optimally
adsorbs
O,
amplifies
exposure
surface‐active
centers,
ultimately
reduces
apparent
activation
energy.
Consequently,
overpotentials
are
low
66.4
mV
254.9
at
10
mA
cm
−2
,
alongside
high
turnover
frequencies
142
s
−1
(H
)
279
(O
100
300
mV,
respectively,
markedly
outperforming
direct‐electrodeposited
analogues.
When
functioning
bifunctional
electrode
OWS,
this
material
merely
requires
1.57
V
sustains
operation
for
168
h,
approaching
Pt/C||RuO
benchmark.
