Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 18, 2024
The
use
of
efficient
and
affordable
non-precious
metal
catalysts
for
hydrogen
oxygen
evolution
reactions
is
vital
replacing
widely
implementing
new
energy
sources.
Nevertheless,
improving
the
catalytic
performance
these
non-precious-metal
bifunctional
electrocatalysts
continues
to
be
a
major
challenge.
In
this
article,
an
optimized
Se-incorporated
bulk
CoS
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 29, 2025
Abstract
Synergistically
optimizing
electronic
structure
and
exposing
abundant
active
sites
to
significantly
improve
performance
of
transition
metal‐based
electrocatalysts
is
an
urgent
necessity
remains
a
significant
challenge.
Herein,
hybrid
nanotubes
array
rich
P‐vacancy
V‐CoP@Cu
3
P
in
situ
grown
on
copper
foam
(V
‐V‐CoP@Cu
HNTAs/CF)
fabricated
for
overall
water
splitting.
The
combined
experimental
theoretical
calculations
reveal
that
V
doping‐induced
vacancies
lead
the
formation
local
electric
field
within
V‐CoP
heterojunction‐induced
built‐in
field,
which
can
jointly
accelerate
electron
transfer
charge
separation,
thereby
enhancing
reaction
kinetics.
Moreover,
nanotube
not
only
increase
electrochemical
surface
area
offer
superior
mass
transfer,
but
also
possess
superhydrophilic
nature
utilization
efficiency
electrode
surfaces.
Due
these
advantages,
HNTAs/CF
provide
distinguished
HER
OER
activity,
by
employing
as
bifunctional
electrocatalysts,
splitting
device
delivered
current
density
10
mA
cm
−2
at
low
voltage
1.46
maintained
its
activity
without
decay
200
h
1
m
KOH
electrolyte.
Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 18, 2024
The
use
of
efficient
and
affordable
non-precious
metal
catalysts
for
hydrogen
oxygen
evolution
reactions
is
vital
replacing
widely
implementing
new
energy
sources.
Nevertheless,
improving
the
catalytic
performance
these
non-precious-metal
bifunctional
electrocatalysts
continues
to
be
a
major
challenge.
In
this
article,
an
optimized
Se-incorporated
bulk
CoS