ACS Omega,
Journal Year:
2024,
Volume and Issue:
9(19), P. 21378 - 21387
Published: April 30, 2024
Platinum
nanoparticles
loaded
on
a
nitrogen-doped
carbon
nanotubes
exhibit
brilliant
hydrogen
evolution
reaction
(HER)
in
an
alkaline
solution,
but
their
bifunctional
and
oxygen
(OER)
has
not
been
reported
due
to
the
lack
of
strong
Pt-C
bond.
In
this
work,
platinum
bonded
(Pt-NPs-bonded@CNT)
with
bonds
are
designed
toward
ultralow
overpotential
water
splitting
ability
solution.
Benefit
from
interaction
between
high
conductivity
nanotube
substrates
through
bond
also
can
provide
more
stable
active
sites,
as
result,
Pt-NPs-bonded@CNT
exhibits
excellent
acid
solution
0.19
0.23
V
reach
1000
mA
cm
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: April 5, 2024
Abstract
Seawater
electroreduction
is
attractive
for
future
H
2
production
and
intermittent
energy
storage,
which
has
been
hindered
by
aggressive
Mg
2+
/Ca
precipitation
at
cathodes
consequent
poor
stability.
Here
we
present
a
vital
microscopic
bubble/precipitate
traffic
system
(MBPTS)
constructing
honeycomb-type
3D
robust
anti-precipitation
seawater
reduction
(SR),
massively/uniformly
release
small-sized
bubbles
to
almost
every
corner
of
the
cathode
repel
precipitates
without
break.
Noticeably,
optimal
with
built-in
MBPTS
not
only
enables
state-of-the-art
alkaline
SR
performance
(1000-h
stable
operation
–1
A
cm
−2
)
but
also
highly
specialized
in
catalytically
splitting
natural
into
greatest
ability.
Low
amounts
after
prolonged
tests
under
large
current
densities
reflect
genuine
efficacy
our
MBPTS.
Additionally,
flow-type
electrolyzer
based
on
stably
functions
industrially-relevant
500
mA
150
h
while
unwaveringly
sustaining
near-100%
Faradic
efficiency.
Note
that
estimated
price
(~1.8
US$/kg
H2
even
cheaper
than
US
Department
Energy’s
goal
(2
).
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(12)
Published: Jan. 30, 2024
Although
great
efforts
on
the
delicate
construction
of
a
built-in
electric
field
(BIEF)
to
modify
electronic
properties
active
sites
have
been
conducted,
substantial
impact
BIEF
coupled
with
electrode
potential
electrochemical
reactions
has
not
clearly
investigated.
Herein,
we
designed
an
alkaline
hydrogen
evolution
reaction
(HER)
catalyst
composed
heterogeneous
Ru-CoP
urchin
arrays
carbon
cloth
(Ru-CoP/CC)
strong
guidance
density
functional
theory
(DFT)
calculations.
Impressively,
despite
its
unsatisfactory
activity
at
10
mA
cm
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
146(30), P. 20594 - 20603
Published: May 20, 2024
Heterophase
nanomaterials
have
sparked
significant
research
interest
in
catalysis
due
to
their
distinctive
properties
arising
from
synergistic
effects
of
different
components
and
the
formed
phase
boundary.
However,
challenges
persist
controlled
synthesis
heterophase
intermetallic
compounds
(IMCs),
primarily
lattice
mismatch
distinct
crystal
phases
difficulty
achieving
precise
control
transitions.
Herein,
orthorhombic/cubic
Ru2Ge3/RuGe
IMCs
with
engineered
boundary
architecture
are
synthesized
anchored
on
reduced
graphene
oxide.
The
exhibit
excellent
hydrogen
evolution
reaction
(HER)
performance
a
high
current
density
1000
mA
cm–2
at
low
overpotential
135
mV.
presence
boundaries
enhances
charge
transfer
improves
kinetics
water
dissociation
while
optimizing
processes
adsorption/desorption,
thus
boosting
HER
performance.
Moreover,
an
anion
exchange
membrane
electrolyzer
is
constructed
using
as
cathode
electrocatalyst,
which
achieves
voltage
1.73
V,
activity
remains
virtually
undiminished
over
500
h.
Journal of Materials Chemistry A,
Journal Year:
2023,
Volume and Issue:
12(2), P. 1185 - 1199
Published: Dec. 12, 2023
The
novel
Mott–Schottky
Co
2
P/Co
encapsulated
by
N,P
co-doped
graphene
and
carbon
nanotubes
is
prepared
employed
it
as
superior
catalyst
for
zinc–air
batteries
water
splitting
application,
making
a
noteworthy
advancement
in
the
field.
