Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 19, 2024
Abstract
Acidic
overall
water‐splitting
driven
by
consistent
electricity
is
an
efficient
and
economical
method
for
producing
green
hydrogen.
However,
developing
highly
active
durable
bifunctional
electrocatalysts
both
hydrogen
oxygen
evolution
reactions
(HER
OER)
in
acidic
conditions
remains
a
challenge.
Here,
single‐atom
Mn
sites
are
introduced
into
Ru/RuO₂
heterostructures
(Mn(SAs)‐Ru/RuO
2
)
as
electrocatalysts,
achieving
low
overpotentials
of
39
158
mV
at
10
mA
cm
−2
HER
OER,
respectively,
while
maintaining
long‐term
durability
over
500
h
1.47
V
0.5
m
H
SO
4
.
It
outperforms
most
previously
reported
electrocatalysts.
Theoretical
calculations
show
that
the
charge
redistribution
caused
single‐site
dopants
optimizes
adsorption
OOH
*
Ru
sites,
significantly
boosting
electrochemical
kinetics
OER
HER.
This
work
presents
effective
metal
doping
strategy
to
optimize
distribution
water‐splitting.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(16)
Published: Feb. 29, 2024
Abstract
Alkaline
water
electrolysis
(AWE)
plays
a
crucial
role
in
the
realization
of
hydrogen
economy.
The
design
and
development
efficient
stable
bifunctional
catalysts
for
both
evolution
reaction
(HER)
oxygen
(OER)
are
pivotal
to
achieving
high‐efficiency
AWE.
Herein,
WC
1‐x
/Mo
2
C
nanoparticle‐embedded
carbon
nanofiber
(WC
C@CNF)
with
abundant
interfaces
is
successfully
designed
synthesized.
Benefiting
from
electron
transfer
behavior
Mo
,
electrocatalysts
C@CNF
exhibit
superior
HER
OER
performance.
Furthermore,
when
employed
as
anode
cathode
membrane
electrode
assembly
devices,
catalyst
exhibits
enhanced
catalytic
activity
remarkable
stability
100
hours
at
high
current
density
200
mA
cm
−2
towards
overall
splitting.
experimental
characterizations
theoretical
simulation
reveal
that
modulation
d‐band
center
C@CNF,
achieved
through
asymmetric
charge
distribution
resulting
built‐in
electric
field
induced
by
work
function,
enables
optimization
adsorption
strength
hydrogen/oxygen
intermediates,
thereby
promoting
kinetics
This
provides
promising
strategies
designing
highly
active
energy
conversion
fields.
Inorganic Chemistry Frontiers,
Journal Year:
2024,
Volume and Issue:
11(14), P. 4080 - 4106
Published: Jan. 1, 2024
This
summary
describes
the
effects
of
wettability,
local
pH,
interfacial
water
structure,
and
electrolyte
composition
on
interface
reactant
compositions,
key
intermediate
adsorption,
reaction
kinetics.
Chemical Society Reviews,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
This
review
systematically
provides
various
insights
into
the
pH
effect
on
hydrogen
electrocatalysis,
and
thus
providing
a
reference
for
future
development
of
electrocatalysis
based
these
insights.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 15, 2025
Abstract
Oxygen
evolution
reaction
(OER)
is
a
cornerstone
of
various
electrochemical
energy
conversion
and
storage
systems,
including
water
splitting,
CO
2
/N
reduction,
reversible
fuel
cells,
rechargeable
metal‐air
batteries.
OER
typically
proceeds
through
three
primary
mechanisms:
adsorbate
mechanism
(AEM),
lattice
oxygen
oxidation
(LOM),
oxide
path
(OPM).
Unlike
AEM
LOM,
the
OPM
via
direct
oxygen–oxygen
radical
coupling
that
can
bypass
linear
scaling
relationships
intermediates
in
avoid
catalyst
structural
collapse
thereby
enabling
enhanced
catalytic
activity
stability.
Despite
its
unique
advantage,
electrocatalysts
drive
remain
nascent
are
increasingly
recognized
as
critical.
This
review
discusses
recent
advances
OPM‐based
electrocatalysts.
It
starts
by
analyzing
mechanisms
guide
design
Then,
several
types
novel
materials,
atomic
ensembles,
metal
oxides,
perovskite
molecular
complexes,
highlighted.
Afterward,
operando
characterization
techniques
used
to
monitor
dynamic
active
sites
examined.
The
concludes
discussing
research
directions
advance
toward
practical
applications.
Journal of Materials Chemistry A,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
We
introduce
high-entropy
single-atom
catalysts
(HESACs)
from
FeRuPtNiCoPd
HEA
on
GO
via
pulsed
laser
irradiation
in
liquids.
Synergistic
interactions
and
rapid
Fe
2+
photoreduction
enhance
active
sites,
achieving
superior
overall
water
splitting.
Chemical Society Reviews,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
This
review
investigates
atomic
site
catalysts
(ASCs)
for
electrochemical
hydrogen
evolution
reaction
(HER),
discussing
their
properties,
types,
performance,
significance,
activity,
selectivity,
stability,
challenges,
and
future
research
directions.
ACS Materials Letters,
Journal Year:
2024,
Volume and Issue:
6(7), P. 2660 - 2686
Published: May 31, 2024
The
rapid
growth
of
the
global
population
and
industry
has
increased
warming
energy
consumption.
Clean,
sustainable,
renewable
sources
must
be
employed
if
this
critical
problem
is
to
resolved.
Hydrogen
(H2)
become
one
most
promising
fuel
within
range
alternatives.
A
noteworthy
method
creating
hydrogen
by
electrochemically
splitting
water
into
H2
O2.
As
a
result,
need
for
inexpensive,
accessible
catalysts
with
remarkable
catalytic
performance
producing
environmentally
friendly
crucial.
newly
emerging
class
2-D
layered
MXenes,
which
consists
nitrides,
transition
metal
carbides
(TMC),
carbonitrides,
an
impressive
competitor
in
race.
MXenes
offer
excellent
electrochemical
properties,
hydrophilicity,
reactivity,
making
them
suitable
water-splitting
applications.
However,
systematic
reviews
on
strategies
mechanical
chemistry
electrocatalytic
redox
reactions
productions
are
rare.
This
comprehensive
review
analysis
addresses
many
boosting
MXene
efficiency
during
oxygen
evolution
(OER)
(HER).
These
approaches
include
heteroatom
doping,
alloying,
quantum
dot
plasma
surface
modification.
Furthermore,
study
highlights
efforts
prospective
paths
increasing
economic
viability
as
electrocatalysts
green
generation.
opens
new
avenues
high-performance
applications,
more
sustainable
future.
The
development
of
water
splitting
technology
in
alkaline
medium
requires
the
exploration
electrocatalysts
superior
to
Pt/C
boost
hydrogen
evolution
reaction
(HER).
Ruthenium
oxides
with
strong
dissociation
ability
are
promising
candidates;
however,
lack
combination
sites
immensely
limits
their
performance.
Herein,
we
reported
a
unique
RuOx
catalyst
metallic
Ru
on
its
surface
through
simple
cation
exchange
method.
We
demonstrated
that
formation
greatly
enhances
interaction
between
and
adsorbed
(*H),
resulting
extremely
high
HER
activity
media.
Moreover,
proposed
potential
zero
charge
(Epzc)
as
descriptor
ruthenium-base
catalysts
for
first
time
revealed
existence
optimizes
Epzc
toward
region.
As
result,
designed
achieves
an
overpotential
only
18
mV
at
current
density
10
mA
cm–2.
Furthermore,
1.80
V
reach
800
cm–2
anion
membrane
electrolyzer,
outperforming
benchmark
Pt/C.