Unlocking the potential of chemical-assisted water electrolysis for green hydrogen production
Industrial Chemistry and Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Chemical-assisted
water
electrolysis
is
gaining
attraction
as
an
alternative
to
conventional
produce
hydrogen,
but
high
overpotential
a
major
challenge.
This
review
covers
advanced
strategies
reduce
the
operation
voltage.
Язык: Английский
Insights on the electrooxidation of formaldehyde over bimetallic Co2V2O7 nanorod and its implication towards water electrolysis
Solid State Sciences,
Год журнала:
2025,
Номер
unknown, С. 107903 - 107903
Опубликована: Март 1, 2025
Язык: Английский
Waste to Wealth: Electrochemical Innovations in Hydrogen Production From Industrial Wastewater
Global Challenges,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 25, 2025
Abstract
The
increasing
demand
for
energy
and
the
environmental
challenges
posed
by
fossil
fuel
consumption
prompts
exploration
of
clean
sustainable
solutions.
This
review
article
focuses
on
innovative
approach
generating
through
electrolysis
wastewater,
which
not
only
facilitates
production
but
also
aids
in
wastewater
treatment.
Significant
advancements
electrooxidation
processes
hydrogen
other
valuable
chemicals
are
highlighted.
specifically
analyzes
techno‐economic
aspects
small
molecules,
including
alcohol,
amine,
hydrazine,
iodine,
urea,
within
framework
Cost
estimations
value‐added
products
derived
from
oxidation
reactions
presented,
with
costs
calculated
at
$6.37,
$6.06,
$2.68,
$5.69,
$10.69
per
kilogram
H
2
,
respectively.
However,
associated
alcohol
urea
deemed
unfeasible.
An
analysis
profitability
reveals
that
amine
generate
revenue
profits
28%,
16%,
6%,
Язык: Английский
Photoelectrochemical hydrazine oxidation using TiO2-modified inorganic/organic heterostructure electrode
Thin Solid Films,
Год журнала:
2025,
Номер
unknown, С. 140701 - 140701
Опубликована: Май 1, 2025
Язык: Английский
Dual‐atom catalyst design for efficient hydrazine oxidation reaction: A density functional theory study
Bulletin of the Korean Chemical Society,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 19, 2025
Abstract
As
climate
change
accelerates
due
to
the
continued
use
of
fossil
fuels,
hydrogen
production
technologies
that
offer
both
high
efficiency
and
environmental
sustainability
are
urgently
needed
for
global
energy
transition.
However,
conventional
water
electrolysis
is
limited
by
oxygen
evolution
reaction
(OER),
which
suffers
from
sluggish
kinetics
overpotentials,
significantly
reducing
overall
efficiency.
To
address
this
challenge,
hydrazine
oxidation
(HzOR)
has
emerged
as
a
promising
alternative,
featuring
more
favorable
lower
overpotentials.
Despite
its
advantages,
practical
implementation
HzOR
remains
reliance
on
noble
metal‐based
catalysts,
costly
scarce.
In
study,
we
propose
dual‐atom
catalyst
(DAC)
design
strategy
efficient
HzOR,
using
combinations
non‐noble
metals
(NiCo,
CoPt,
NiIr).
Density
functional
theory
(DFT)
calculations
were
performed
evaluate
their
structural
stability,
electronic
structures,
catalytic
performance.
The
results
reveal
heterometallic
DACs
can
enhance
activity
optimizing
intermediate
adsorption
lowering
activation
energy.
Among
studied
systems,
NiCo
Type‐I
demonstrates
most
balance
conductivity.
This
work
highlights
potential
cost‐effective
catalysts
provides
insights
next‐generation
aligned
with
decarbonization
goals.
Язык: Английский
CuPt nano-alloy as bifunctional electrocatalyst for N2H4 oxidation-assisted H2 generation and multifunctional sensor materials
Materials Science in Semiconductor Processing,
Год журнала:
2025,
Номер
197, С. 109694 - 109694
Опубликована: Май 26, 2025
Язык: Английский
Catalyst-Driven Kinetic Optimisation for Hydrogen Production Through Coal Water Slurry Electrolysis (Cwse)
Опубликована: Янв. 1, 2025
Язык: Английский
High‐Entropy Alloy Nanoflower Array Electrodes with Optimizable Reaction Pathways for Low‐Voltage Hydrogen Production at Industrial‐Grade Current Density
Advanced Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 23, 2024
Abstract
Developing
sufficiently
effective
non‐precious
metal
catalysts
for
large‐current‐density
hydrogen
production
is
highly
significant
but
challenging,
especially
in
low‐voltage
systems.
Here,
we
innovatively
report
high‐entropy
alloy
nanoflower
array
(HEANFA)
electrodes
with
optimizable
reaction
pathways
hydrazine
oxidation‐assisted
at
industrial‐grade
current
densities.
Atomic‐resolution
structural
analyses
confirm
the
single‐phase
solid‐solution
structure
of
HEANFA.
The
HEANFA
exhibit
top‐level
electrocatalytic
performance
both
alkaline
evolution
(HER)
and
oxidation
(HzOR).
Furthermore,
splitting
(OHzS)
system
assembled
as
anode
cathode
exhibits
a
record‐breaking
production.
It
achieves
ultralow
working
voltages
0.003,
0.081,
0.260,
0.376,
0.646
V
densities
10,
100,
500,
1
000,
2
000
mA
cm
−2
,
respectively,
remarkable
stability
300
h,
significantly
outperforming
those
previously
reported
OHzS
systems
other
chemicals‐assisted
Theoretical
calculations
reveal
that
extraordinary
attributed
to
its
abundant
high‐activity
sites
HER
HzOR.
In
particular,
enables
intelligent
migration
key
intermediates
during
HzOR,
thereby
optimizing
creating
sites,
ultimately
endowing
OHzS.
Язык: Английский
Effect of Sodium Terephthalate on the Electrocatalytic Performance of Active Self‐Supporting Nanoporous PdAg Catalysts
Jiafen Wang,
Fang Si,
Jinrong Duan
и другие.
Advanced Engineering Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 15, 2024
Direct‐methanol
fuel
cells
(DMFCs)
have
become
a
hot
research
topic
in
the
energy
field
due
to
their
excellent
conversion
efficiency
and
environmental
sustainability.
Optimization
of
catalyst
preparation
strategy
is
key
enhance
performance
DMFC.
In
this
study,
melt
quenching
employed
synthesize
Al–Pd–Ag
precursor
alloy
ribbons,
self‐supported
nanoporous
Pd–Ag
catalysts
with
high
activity
are
successfully
prepared
by
precisely
controlled
dealloying
process.
The
characterized
microstructurally
tested
electrochemically,
compared
samples
without
sodium
terephthalate
addition
commercial
Pt/C
Pd/C
catalysts.
results,
it
shown
that
maximum
peak
current
density
methanol
electrocatalytic
oxidation
significantly
enhanced
1451.16
mA
mg
−1
15
mM
terephthalate,
which
about
6.6
times
higher
than
unadded
samples,
catalytic
improved
factor
7.7
12.0,
respectively,
those
Pd/C.
This
remarkable
enhancement
attributed
innovative
method,
not
only
refines
structure
but
also
achieves
significant
increase
through
assistance
active
self‐supporting
structures
interfacial
synergistic
effects
between
palladium
silver.
Язык: Английский