Defect-rich Birnessite Ultrathin Nanosheet Array Armed with Fe-Phytate Complex Enables Boosted and Long-Lasting Seawater Oxidation at Industrial-Level Current Density
ACS Catalysis,
Год журнала:
2025,
Номер
unknown, С. 6954 - 6968
Опубликована: Апрель 15, 2025
Язык: Английский
The Roles of Ions in Electrochemical Interface for Electrocatalysis
ACS Catalysis,
Год журнала:
2025,
Номер
unknown, С. 7780 - 7791
Опубликована: Апрель 25, 2025
Язык: Английский
Tuning the Electronic Structure of Ni2P through Fe Doping to Trigger the Lattice-Oxygen-Mediated Oxygen Evolution Reaction
Inorganic Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 2, 2025
Developing
cost-effective
electrocatalysts
for
efficient
seawater
splitting
requires
a
fundamental
understanding
of
the
oxygen
evolution
reaction
(OER)
mechanism.
Herein,
iron-doped
nickel
phosphide
(Fe-Ni2P)
is
synthesized
via
hydrothermal-impregnation-phosphidation
strategy
to
investigate
role
Fe
incorporation
in
modulating
electronic
structure
and
OER
pathways.
Mechanistic
investigations
demonstrate
that
doping
triggers
shift
from
adsorbate
mechanism
(AEM)
lattice
oxygen-mediated
(LOM)
pathways,
evidenced
by
pH-dependent
kinetics,
tetramethylammonium
cation
probing,
situ
electrochemical
impedance
spectroscopy
(EIS).
The
LOM
involves
nonconcerted
proton-electron
transfers,
facilitated
accelerated
hydroxide
adsorption
(ks
=
0.275
s-1)
dynamic
surface
reconstruction
into
amorphous
NiOOH.
reduced
activation
energy
(27.1
kJ
mol-1)
lower
charge-transfer
resistance
Fe-Ni2P
underscore
its
superior
thermodynamics
kinetics.
X-ray
photoelectron
EIS
further
validate
vacancy
accumulation
during
process.
Electrochemical
studies
reveal
exhibits
low
overpotential
220
mV
at
10
mA
cm-2
remarkable
stability
through
phosphate-mediated
Cl-
repulsion
involving
alkaline
seawater.
This
work
establishes
Fe-induced
modulation
as
critical
activating
LOM-dominated
catalysis
transition
metal
phosphides.
Язык: Английский
Solid–Solid Interface Design for Hydrogen Production by Direct Seawater Electrolysis: Progress and Challenges
Inorganics,
Год журнала:
2025,
Номер
13(6), С. 183 - 183
Опубликована: Июнь 4, 2025
Using
direct
seawater
electrolysis
(DSE)
for
hydrogen
production
has
garnered
increasing
scientific
attention
as
a
promising
pathway
toward
sustainable
energy
solutions.
Given
the
complex
ionic
environment
of
seawater,
researchers
have
proposed
diverse
range
strategies
aimed
at
addressing
issue
enhancing
corrosion
resistance
anodes,
yet
no
optimal
solution
been
found
so
far.
Among
emerging
approaches,
design
using
multilayer
electrode
architecture
offers
notable
advantages
by
introducing
abundant
active
sites,
chemical
environments,
and
robust
physical
structures.
Crucially,
these
configurations
enable
synergistic
integration
distinct
material
properties
across
different
layers,
thereby
both
electrochemical
activity
structural
stability
in
harsh
environments.
Despite
benefits,
limited
understanding
role
played
solid–solid
interfaces
hindered
rational
practical
application
such
electrodes.
This
review
focuses
on
principles
functional
roles
anodes
oxygen
evolution
reaction
(OER)
under
DSE
conditions.
In
addition,
we
systematically
summarize
discuss
representative
fabrication
methods
constructing
hierarchically
structured
By
screening
recent
advances
techniques,
further
highlight
how
engineered
influence
interfacial
bonding,
electron
transfer,
mass
transport
during
processes,
intrinsic
catalytic
activity,
well
protecting
metallic
from
corrosion.
Finally,
current
challenges
future
research
directions
to
deepen
mechanistic
interface
phenomena
are
discussed,
with
aim
accelerating
development
scalable
electrodes
electrolysis.
Язык: Английский