Langmuir,
Journal Year:
2025,
Volume and Issue:
unknown
Published: May 16, 2025
Replacing
the
kinetically
slow
oxygen
evolution
reaction
(OER)
with
urea
electro-oxidation
significantly
reduces
energy
requirement
for
electrolysis
of
water.
However,
designing
and
optimizing
efficient
electrocatalysts
industrial
application
oxidation
coupled
to
hydrogen
production
remains
a
challenge.
Herein,
we
construct
C/A-NixP/NiOH
heterojunction
catalyst
actually
abundant
amorphous/crystalline
interfaces
(UOR)
by
an
interfacial-sequential
treatment
method
electrodeposition
low-temperature
gas-phase
phosphatization
on
carbon
cloth
(CC).
Remarkably,
in
UOR,
required
only
1.332
V
reach
current
density
10
mA
cm-2
negligible
potential
decay
over
12
h.
The
excellent
performance
is
attributed
synergistic
interaction
between
inner
amorphous
NiOH
layer
outer
crystalline
NixP
layer,
as
well
interface,
interfacial
structure
that
can
expose
more
active
sites
enhance
intrinsic
activity,
thus
improving
kinetics
stability
UOR.
This
work
paves
way
development
low-cost
high-efficiency
catalysts
oxidation.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(30)
Published: May 27, 2024
Abstract
Electrochemical
water
splitting
is
a
promising
technique
for
the
production
of
high‐purity
hydrogen.
Substituting
slow
anodic
oxygen
evolution
reaction
with
an
oxidation
that
thermodynamically
more
favorable
enables
energy‐efficient
Moreover,
this
approach
facilitates
degradation
environmental
pollutants
and
synthesis
value‐added
chemicals
through
rational
selection
small
molecules
as
substrates.
Strategies
small‐molecule
electrocatalyst
design
are
critical
to
electrocatalytic
performance,
focus
on
achieving
high
current
density,
selectivity,
Faradaic
efficiency,
operational
durability.
This
perspective
discusses
key
factors
required
further
advancement,
including
technoeconomic
analysis,
new
reactor
system
design,
meeting
requirements
industrial
applications,
bridging
gap
between
fundamental
research
practical
product
detection
separation.
aims
advance
development
hybrid
electrolysis
applications.
Advanced Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 7, 2025
Abstract
Overall
water
splitting
(OWS)
to
produce
hydrogen
has
attracted
large
attention
in
recent
years
due
its
ecological‐friendliness
and
sustainability.
However,
the
efficiency
of
OWS
been
forced
by
sluggish
kinetics
four‐electron
oxygen
evolution
reaction
(OER).
The
replacement
OER
alternative
electrooxidation
small
molecules
with
more
thermodynamically
favorable
potentials
may
fundamentally
break
limitation
achieve
production
low
energy
consumption,
which
also
be
accompanied
value‐added
chemicals
than
or
electrochemical
degradation
pollutants.
This
review
critically
assesses
latest
discoveries
coupled
various
OWS,
including
alcohols,
aldehydes,
amides,
urea,
hydrazine,
etc.
Emphasis
is
placed
on
corresponding
electrocatalyst
design
related
mechanisms
(e.g.,
dual
hydrogenation
N–N
bond
breaking
hydrazine
C═N
regulation
urea
inhibit
hazardous
NCO
−
NO
productions,
etc.),
along
emerging
reactions
(electrooxidation
tetrazoles,
furazans,
iodide,
quinolines,
ascorbic
acid,
sterol,
trimethylamine,
etc.).
Some
new
decoupled
electrolysis
self‐powered
systems
are
discussed
detail.
Finally,
potential
challenges
prospects
highlighted
aid
future
research
directions.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 7, 2025
Abstract
The
NiFe‐based
layered
double
hydroxides
(LDH)
undergo
surface
reconstruction,
generating
metal
hydroxyl
oxides
that
act
as
active
species
during
the
alkaline
oxygen
evolution
reaction
(OER).
However,
sluggish
reconstruction
process
and
excessive
oxidation
at
higher
anodic
potentials
frustrate
OER
activity
stability.
Herein,
a
cation–anion
collaborative
coordination
strategy
is
harnessed
to
build
(Ni,
Fe)─S─Zn
structures
in
NiFe
LDH
on
nickel
foam
(S‐NiFeZn
LDH/NF),
which
lowers
energy
barrier
aids
forming
highly
β‐NiOOH
process.
Meanwhile,
also
optimize
adsorption
of
oxygen‐containing
intermediates,
enhancing
kinetics.
As
result,
S‐NiFeZn
LDH/NF
achieves
low
overpotentials
201
mV
10
mA
cm
−2
293
500
1.0
m
KOH.
Moreover,
cell
assembled
with
anode
commercial
NiMo
cathode
demonstrates
excellent
overall
water
splitting
activity,
voltages
1.62
1.81
V
KOH,
exhibits
ultralong‐term
durability
over
h
,
even
operating
stably
for
200
an
electrolyzer
under
industrial
conditions
(30%
KOH
80
°C).
Small,
Journal Year:
2024,
Volume and Issue:
20(44)
Published: July 10, 2024
Doping
of
metal
ions
shows
promising
potential
in
optimizing
and
modulating
the
electrical
conductivity
layered
double
hydroxides
(LDHs).
However,
there
is
still
much
room
for
improvement
common
conventional
doping
methods.
In
contrast
to
previous
methodologies,
a
hollow
triangular
nanoflower
structure
CoFeV-LDHs
devised,
which
enriched
with
greater
number
oxygen
vacancies.
This
resulted
significant
enhancement
LDHs,
leading
an
increase
energy
density
following
appropriate
V.
To
investigate
impact
V-doping
on
situ
XPS
X-ray
spectroscopy
employed.
Regarding
electrochemical
performance,
CoFeV-LDHs/NF
electrode
optimal
ratio
exhibited
specific
capacitance
881
F
g
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 22, 2024
Understanding
the
effect
of
elements'
oxygen
affinity
is
essential
for
comprehending
high-entropy
alloys'
(HEAs)
complete
properties.
However,
origin
HEAs'
oxygen-containing
structure
and
stability
remains
poorly
understood,
primarily
due
to
their
diverse
components,
hindering
synthesis
analysis.
Herein,
O-doping
HEAs
(HEA-O)
have
demonstrated
outstanding
performance
in
electrolyzed
water
Zinc-air
batteries
which
can
be
reassembled
after
being
stable
more
than
1600
h
when
zinc
consumption
over.
The
experiment
DFT
simulation
demonstrate
that
Cr
with
strong
introduce
into
system
HEAs.
Consequently,
interstitial
oxygens
act
as
electronic
buffers
making
binding
energy
other
metal
elements
move
a
higher
level.
Additionally,
lowers
d-band
center
promoting
electrochemical
activity
increasing
vacancy
formation
energies
active
sites
leading
super
stability.
study
provides
significant
insights
design
comprehension
oxygen-doped
Journal of the American Chemical Society,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 8, 2025
Electrochemical
H2
production
from
water
favors
low-voltage
molecular
oxidation
to
replace
the
oxygen
evolution
reaction
as
an
energy-saving
and
value-added
approach.
However,
there
exists
a
mismatch
between
high
demand
for
slow
anodic
reactions,
restricting
practical
applications
of
such
hybrid
systems.
Here,
we
propose
bipolar
approach,
with
generation
N–N
oxidatively
coupled
dehydrogenation
(OCD)
3,5-diamino-1H-1,2,4-triazole
(DAT),
in
addition
cathodic
generation.
The
system
requires
relatively
low
potentials
0.872
1.108
V
vs
RHE
reach
10
500
mA
cm–2,
respectively.
H-type
electrolyzer
only
0.946
1.129
deliver
100
respectively,
electricity
consumption
(1.3
kWh
per
m3
H2)
reduced
by
68%,
compared
conventional
splitting.
Moreover,
process
is
highly
appealing
due
absence
traditional
hazardous
synthetic
conditions
azo
compounds
at
anode
crossover/mixing
H2/O2
electrolyzer.
A
flow-type
operates
stably
cm–2
300
h.
Mechanistic
studies
reveal
that
Pt
single
atom
nanoparticle
(Pt1,n)
optimize
adsorption
S
active
sites
over
Pt1,n@VS2
catalysts.
At
anode,
stepwise
−NH2
DAT
then
oxidative
coupling
−N–N–
predominantly
form
while
generating
H2.
present
report
paves
new
way
atom-economical
aminotriazole
green
electrosynthesis
chemicals.
Energies,
Journal Year:
2024,
Volume and Issue:
17(22), P. 5712 - 5712
Published: Nov. 15, 2024
With
the
increasing
global
emphasis
on
green
energy
and
sustainable
development
goals,
electrocatalytic
oxygen
evolution
reaction
(OER)
is
gradually
becoming
a
crucial
focus
in
research
water
oxidation
for
hydrogen
generation.
However,
its
complicated
processes
associated
with
high
barrier
severely
limit
efficiency
of
conversion.
Recently,
layered
double
hydroxide
(LDH)
has
been
considered
as
one
most
promising
catalysts
alkaline
media.
Nonetheless,
lacking
deep
insight
into
kinetic
process
OER
detrimental
to
further
optimization
LDH
catalysts.
Therefore,
monitoring
catalytic
via
surface-sensitive
situ
spectroscopy
especially
important.
In
particular,
Raman
technique
capable
providing
fingerprint
information
surface
species
intermediates
operating
environment.
From
perspective
spectroscopy,
this
paper
provides
an
exhaustive
overview
progress
characterization
mechanism
catalysts,
theoretical
guidance
designing
materials.
Finally,
we
present
incisive
discussion
challenges
future
trend.
