Carbon Energy,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 27, 2025
Abstract
The
electrocatalytic
water‐splitting
process
is
widely
acknowledged
as
the
most
sustainable
and
environmentally
friendly
technology
for
hydrogen
(H
2
)
production.
However,
its
energy
efficiency
significantly
constrained
by
kinetically
slow
oxygen
evolution
reaction
(OER)
at
anode,
which
accounts
about
90%
of
electrical
consumption
in
process.
A
new
strategy
urgently
needed
to
reduce
consumption.
In
recent
years,
electrochemical
oxidation
small
molecules
has
been
considered
replacement
OER
efficient
H
production,
due
benign
operational
conditions,
low
theoretical
thermodynamic
potential,
high
conversion
selectivity,
environmental
sustainability.
Hybrid
electrolysis
systems,
integrating
cathodic
with
anodic
molecules,
have
introduced,
can
generate
high‐purity
produce
value‐added
products
or
pollutant
degradation.
this
review,
we
highlight
advancements
significant
milestones
achieved
hybrid
water
systems.
focus
on
non‐noble
metal
electrocatalysts,
mechanisms,
construction
electrolyzers.
Additionally,
present
prevailing
challenges
future
perspectives
pertinent
burgeoning
technology.
Energy & Environmental Science,
Journal Year:
2023,
Volume and Issue:
17(1), P. 49 - 113
Published: Nov. 7, 2023
This
perspective
highlights
recent
advancements
in
innovative
strategies
to
provide
valuable
insights
into
the
potential
for
energy-saving
hydrogen
production
through
water
electrolysis.
Small,
Journal Year:
2023,
Volume and Issue:
19(42)
Published: June 22, 2023
Exploiting
highly
active
and
bifunctional
catalysts
for
both
hydrogen
evolution
reaction
(HER)
hydrazine
oxidation
(HzOR)
is
a
prerequisite
the
acquisition.
High-entropy
materials
have
received
widespread
attention
in
catalysis,
but
high-performance
electrodes
are
still
lacking.
Herein,
novel
P-modified
amorphous
high-entropy
CoFeNiCrMn
compound
developed
on
nickel
foam
(NF)
by
one-step
electrodeposition
strategy.
The
achieved
CoFeNiCrMnP/NF
delivers
remarkable
HER
HzOR
performance,
where
overpotentials
as
low
51
268
mV
realized
at
100
mA
cm-2
.
improved
cell
voltage
of
91
further
demonstrated
assessing
constructed
hydrazine-assisted
water
electrolyser,
which
almost
1.54
V
lower
than
HER||OER
system.
Experimental
results
confirm
important
role
each
element
regulating
bifuncational
performance
catalysts.
main
influencing
elements
seem
to
be
Fe
Ni
HER,
while
P-modification
Cr
metal
may
contribute
lot
HzOR.
These
synergistic
advantages
help
energy
barriers
improve
kinetics,
resulting
excellent
activity
CoFeNiCrMnP/NF.
work
offers
feasible
strategy
develop
self-supporting
electrode
with
overall
splitting.
Inorganic Chemistry,
Journal Year:
2023,
Volume and Issue:
62(24), P. 9687 - 9694
Published: June 2, 2023
Molybdenum
phosphide
(MoP)
has
received
increasing
attention
for
the
hydrogen
evolution
reaction
(HER)
due
to
its
Pt-like
electronic
structure
and
high
electrical
conductivity.
In
this
work,
a
flake-like
Ru-doped
MoP
with
phosphorus
vacancy
(Ru-MoP-PV)
electrocatalyst
is
synthesized
first
time
by
simple
rapid
room-temperature
microwave
approach
within
30
s.
The
created
abundant
vacancies
provide
rich
active
sites
favor
electron
transfer.
introduced
Ru
also
enhances
catalytic
activity
of
efficiently.
Then,
designed
Ru-MoP-PV
possesses
low
overpotentials
HER
79,
100,
161
mV
in
1.0
M
KOH,
0.5
H2SO4,
phosphate-buffered
saline
obtain
10
mA
cm-2.
NiFe-layered
double
hydroxide
are
used
as
cathode
anode,
respectively,
drive
water
splitting
just
need
cell
voltage
1.6
V
achieve
This
work
provides
feasible
way
production
metal
phosphides
energy
conversion
storage
applications.
Advanced Science,
Journal Year:
2023,
Volume and Issue:
10(32)
Published: Sept. 29, 2023
Abstract
Water
splitting,
an
efficient
technology
to
produce
purified
hydrogen,
normally
requires
high
cell
voltage
(>1.5
V),
which
restricts
the
application
of
single
atoms
electrocatalyst
in
water
oxidation
due
inferior
stability,
especially
acidic
environment.
Substitution
anodic
oxygen
evolution
reaction
(OER)
with
hydrazine
(HzOR)
effectually
reduces
overall
voltage.
In
this
work,
utilization
iridium
atom
(Ir‐SA/NC)
as
robust
hydrogen
(HER)
and
HzOR
0.5
m
H
2
SO
4
electrolyte
is
reported.
Mass
activity
Ir‐SA/NC
37.02
A
mg
Ir
−1
at
overpotential
50
mV
HER
catalysis,
boosted
by
127‐time
than
Pt/C.
Besides,
only
0.39
V
versus
RHE
attain
10
mA
cm
−2
dramatically
lower
OER
(1.5
RHE);
importantly,
a
superior
stability
achieved
HzOR.
Moreover,
mass
enhanced
83‐fold
The
situ
Raman
spectroscopy
investigation
suggests
pathway
follows
*N
→*2NH
→*2NH→2N→*N
→N
for
Ir‐SA/NC.
assisted
splitting
demands
drive,
1.25
splitting.
Nano-Micro Letters,
Journal Year:
2024,
Volume and Issue:
16(1)
Published: July 5, 2024
Green
hydrogen
from
electrolysis
of
water
has
attracted
widespread
attention
as
a
renewable
power
source.
Among
several
production
methods,
it
become
the
most
promising
technology.
However,
there
is
no
large-scale
system
currently
that
can
compete
with
conventional
fossil
fuel
production.
Renewable
energy
electrocatalytic
splitting
an
ideal
technology
environmental
cleanliness
protection
and
good
purity,
which
meet
requirements
future
development.
This
review
summarizes
introduces
current
status
by
three
aspects:
electricity,
catalyst
electrolyte.
In
particular,
present
situation
latest
progress
key
sources
power,
catalytic
materials
electrolyzers
for
are
introduced.
Finally,
problems
generation
electrolytic
directions
next-generation
green
in
discussed
outlooked.
It
expected
this
will
have
important
impact
on
field
water.
