Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
137(1)
Published: Sept. 11, 2024
Abstract
Electrosynthesis
of
H
2
O
from
oxygen
reduction
reaction
via
a
two‐electron
pathway
is
vital
as
an
alternative
for
the
energy‐intensive
anthraquinone
process.
However,
this
process
largely
hindered
in
neutral
and
alkaline
conditions
due
to
sluggish
kinetics
associated
with
transformation
intermediate
*
into
OOH*
proton‐coupled
electron
transfer
sourced
slow
water
dissociation.
Herein,
we
developed
Pd
sub‐nanoclusters
on
nickel
ditelluride
nanosheets
(Pd
SNCs/NiTe
)
enhance
performance
electrosynthesis.
The
newly‐developed
exhibited
selectivity
high
99
%
positive
shift
onset
potential
up
0.81
V.
Combined
theoretical
calculations
experimental
studies
(e.g.,
X‐ray
absorption
attenuated
total
reflectance‐Fourier
transform
infrared
spectra
measurements)
revealed
that
supported
by
NiTe
efficiently
reduced
energy
barrier
dissociation
generate
more
protons,
facilitating
proton
feeding
kinetics.
When
used
flow
cell,
cathode
produced
maximum
yield
rate
1.75
mmol
h
−1
cm
−2
current
efficiency
95
at
100
mA
.
Further,
accumulated
concentration
1.43
mol
L
was
reached
after
10
hours
continuous
electrolysis,
showing
practical
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(45)
Published: Oct. 28, 2024
Abstract
High‐current‐density
water
electrolysis
is
considered
a
promising
technology
for
industrial‐scale
green
hydrogen
production,
which
of
significant
value
to
energy
decarbonization
and
numerous
sustainable
industrial
applications.
To
date,
substantial
research
advancements
are
achieved
in
catalyst
design
laboratory‐based
electrolysis.
While
the
designed
catalysts
demonstrate
remarkable
performance
at
low
current
densities,
they
suffer
from
marked
deteriorations
both
activity
long‐term
stability
under
industrial‐level
high‐current‐density
operations.
provide
timely
assessment
that
helps
bridge
gap
between
laboratory‐scale
fundamental
practical
technology,
here
various
commercial
electrolyzers
first
systematically
analyzed,
then
key
parameters
including
work
temperature,
density,
lifetime
stacks,
cell
efficiency,
capital
cost
stacks
critically
evaluated.
In
addition,
impact
high
density
on
electrocatalytic
behavior
catalysts,
intrinsic
activity,
stability,
mass
transfer,
discussed
advance
design.
Therefore,
by
covering
range
critical
issues
material
principles
parameters,
future
directions
development
highly
efficient
low‐cost
presented
procedure
screening
laboratory‐designed
outlined.
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
146(40), P. 27486 - 27498
Published: Aug. 28, 2024
The
improvement
of
hydrogen
evolution
reaction
kinetics
can
be
largely
accelerated
by
introducing
a
well-designed
spillover
pathway
into
the
catalysts.
However,
driving
force
and
mechanism
migration
on
surface
catalysts
are
poorly
understood
rarely
explored
in
depth.
Here,
inspired
specific
ferroelectric
property
HfO
Energy & Environmental Science,
Journal Year:
2024,
Volume and Issue:
17(18), P. 6559 - 6570
Published: Jan. 1, 2024
An
air
cathode
with
high
catalytic
activity
and
reversibility
toward
the
OER
ORR
is
designed
by
typical
coordinations
of
iron
phthalocyanine
molecule
crystals
on
delaminated
MoAl
1−
x
B
MBene
sheets.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 23, 2025
Abstract
The
confining
effect
is
essential
to
regulate
the
activity
and
stability
of
single‐atom
catalysts
(SACs),
but
universal
fabrication
confined
SACs
still
a
great
challenge.
Here,
various
lattice‐confined
Pt
supported
by
different
carriers
are
constructed
co‐reduction
approach.
Notably,
single
atoms
in
lattice
Ni(OH)
2
(Pt
1
/Ni(OH)
)
with
high
electron‐deficient
state
exhibit
excellent
for
basic
hydrogen
evolution
reaction
(HER).
Specifically,
just
requires
15
mV
get
10
mA
cm
−2
mass
times
commercial
Pt/C.
Moreover,
assembled
an
alkaline
water
electrolyzer
shows
1030
h
durability
under
industrial
current
density
800
.
In
situ
spectroscopy
techniques
reveal
Pt─H
“free”
OH
radical
can
be
directly
observed
,
confirming
play
key
role
during
HER.
Further
functional
theory
uncovers
3d
orbital
strongly
hybridizes
O
2p
Ni
orbitals
which
quickly
optimizes
electronic
site,
thus
largely
reducing
energy
barrier
rate‐determining
step
0.16
eV
Finally,
this
synthesis
method
extended
construct
other
9
SACs.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 15, 2025
Abstract
A
bifunctional
electrocatalyst
is
developed,
exhibiting
high
catalytic
activity
and
reversibility
for
the
oxygen
reduction
reaction
(ORR)
evolution
(OER)
through
a
regulative
Fe
d‐orbital
engineering
strategy.
In
this
strategy,
iron
phthalocyanine
organic
molecule
(FeOM)
crystals
are
axially
coordinated
onto
multilayer
Mo
2
CT
x
MXene
(FeOM‐Mo
),
adopting
lying‐down
conformation.
This
hybridization
fosters
unique
electronic
guest–host
interactions,
with
FeOM
donating
charge
to
via
Fe−O
bonding,
leading
symmetry
breaking
in
distribution
modified
delocalization
of
Fe‐3d
charge,
accompanied
by
Fe(II)
spin‐state
transition.
These
transformations
enhance
adsorption
desorption
toward
oxygenated
intermediates,
optimizing
*
OOH−
O
transition
boost
ORR
OER
kinetics.
The
FeOM‐Mo
exhibits
favorable
half‐wave
potential
0.961
V
minimal
overpotential
349
mV
at
10
mA
cm
−2
1.0
m
KOH.
assembled
aqueous
zinc‐air
battery
(ZAB)
achieves
peak
power
density
155.3
mW
exceptional
charge–discharge
durability
over
1500
h,
outperforming
conventional
(Pt/C
+
RuO
)
system.
Overall,
findings
underscore
significance
structural
,
paving
way
innovative
air
cathodes
development
rechargeable
ZABs
enhanced
performance
cost‐effectiveness.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 27, 2025
Abstract
Hydrogen
(H)
manipulation
plays
a
significantly
important
role
in
many
applications,
which
the
occurrence
of
hydrogen
spillover
generally
shows
substrate‐dependent
behavior.
It
therefore
remains
an
open
question
about
how
to
trigger
on
substrates
that
are
forbidden.
Here
new
metastable‐phase
2D
edge‐sharing
oxide:
six‐hexagonal
phase‐hafnium
oxide
(Hex‐HfO
2
,
space
group:
P6
3
mc
(186))
with
coordination
number
six
is
demonstrated,
serves
as
ideal
platform
for
activating
efficient
after
loading
Ru
nanoclusters
(Ru/Hex‐HfO
).
For
stark
comparison,
strongly
forbidden
when
using
stable
monoclinic
phase
HfO
(M‐HfO
P2
1
/c
(14),
number:
seven)
substrate.
When
applied
acidic
evolution
reaction
(HER),
Ru/Hex‐HfO
exhibits
low
overpotential
8
mV
at
10
mA
cm
−2
and
high
utilization
activity
14.37
A
mg
−1
30
mV.
Detailed
mechanism
reveals
positive
H
adsorption
free
energy
Hex‐HfO
indicating
more
likely
.
Furthermore,
strong
interaction
between
optimizes
desorption
intermediate,
thus
facilitating
surface
spillover.
The
discovery
provides
guidance
developing
advanced
catalysis.
Green Chemical Engineering,
Journal Year:
2024,
Volume and Issue:
6(1), P. 93 - 101
Published: April 10, 2024
Developing
electrocatalysts
with
excellent
activity,
high
stability,
and
low
cost
is
vital
for
large-scale
hydrogen
production
through
electrochemical
water
splitting.
Herein,
a
bifunctional
Ni-Fe-P
catalyst
in
situ
grown
on
Fe
foam
(Ni-Fe-P/FF)
developed
by
simple
one-step
solvothermal
process
the
deep
eutectic
solvent
(DES)
of
ethylene
glycol
choline
chloride
(named
Ethaline).
The
unique
environment
Ethaline
assisted
regulating
effect
introduced
Fe(III)
ions
shows
an
essential
role
governing
preparation
process.
Ni-Fe-P/FF
acts
as
efficient
electrocatalyst
splitting
1.0
M
KOH,
requiring
overpotentials
82
mV
(229
mV)
263
(370
to
deliver
10
mA
cm-2
(100
cm-2)
oxygen
evolution
reactions,
respectively.
Furthermore,
self-supported
catalyst-assembled
electrolyzer
also
exhibits
good
catalytic
performance
voltage
1.83
V
drive
100
stability
over
h.
This
work
offers
facile
approach
fabricating
high-performance
catalyze
