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.
ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(15), P. 18782 - 18789
Published: April 3, 2024
Due
to
its
affordable
cost,
excellent
redox
capability,
and
relatively
effective
resistance
corrosion
in
alkaline
environments,
spinel
Co3O4
demonstrates
potential
as
a
viable
alternative
noble-metal-based
electrocatalysts.
Nevertheless,
these
materials
continue
exhibit
drawbacks,
such
limited
active
surface
area
inadequate
intrinsic
conductivity.
Researchers
have
been
trying
increase
the
electrical
conductivity
of
nanostructures
by
integrating
them
with
various
conductive
substrates
due
low
pristine
Co3O4.
In
this
study,
uniform
cobalt
glycerate
solid
spheres
are
first
synthesized
precursor
subsequently
transformed
into
oxide
microspheres
simple
annealing
procedure.
grown
on
Ti3C2Tx-MXene
nanosheets
(Co3O4/MXene)
was
successfully
through
electrostatic
attraction.
order
create
positively
charged
surface,
were
treated
aminopropyltriethoxysilane.
The
Co3O4/MXene
exhibited
overpotential
118
mV
at
10
mA
cm–2
Tafel
slope
113
dec–1
for
hydrogen
evolution
reaction,
which
is
much
lower
than
232
195.3
dec–1.
New Journal of Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
The
growing
demand
for
electrocatalysts
with
excellent
electrochemical
properties
and
environment
friendly
characteristics
is
driving
research
on
water-splitting
to
generate
sustainable
hydrogen
energy
resources.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 15, 2025
Abstract
The
photocatalytic
reduction
of
CO
2
in
water
to
produce
fuels
and
chemicals
is
promising
while
challenging.
However,
many
photocatalysts
for
accomplishing
such
challenging
task
usually
suffer
from
unspecific
catalytic
active
sites
the
inefficient
charge
carrier's
separation.
Here,
a
site‐specific
single‐atom
Ni/TiO
2−x
catalyst
reported
by
situ
topological
transformation
Ni‐Ti‐EG
bimetallic
metal–organic
frameworks.
loading
nickel
nanoparticles
or
individual
atoms,
which
act
as
specific
sites,
can
be
precisely
regulated
chelating
agents
through
partial
removal
adjacent
oxygen
atoms.
Furthermore,
degree
lattice
strain
catalysts,
improves
separation
efficiency
carriers,
modulated
fine‐tuning
process.
By
leveraging
anchored
atoms
strained
TiO
,
optimized
Ni
SA0.27
/TiO
shows
generation
rate
86.3
µmol
g
−1
h
(288
times
higher
than
that
NPs
)
selectivity
up
92.5%
pure‐water
system.
This
work
underscores
importance
tailoring
creating
facilitate
efficient
selective
.
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.
