ACS Energy Letters,
Journal Year:
2024,
Volume and Issue:
9(3), P. 853 - 879
Published: Feb. 7, 2024
Hydrogen
production
via
electrocatalytic
water
splitting
is
hampered
by
the
slow
kinetics
of
anodic
oxygen
evolution
reaction
(OER).
To
address
this
limitation,
electrochemical
hydrogen
(HER)
can
be
boosted
with
more
favorable
oxidation
small
organic
molecules
ideally
driven
renewable
energies,
producing
valuable
chemicals.
In
context,
coupling
methanol
(MOR)
simultaneous
formate
has
garnered
significant
interest.
Such
a
cost-effective
process,
meeting
growing
demand
for
energy
storage
and
fuel
production,
requires
developing
cheap
efficient
electrocatalysts.
Given
knowledge
gap
between
precious
nonprecious
metal
electrocatalysts,
exemplified
nickel
its
derived
compounds,
review
focuses
on
MOR
from
fundamental
electrochemistry,
materials
design
synthesis,
activity-composition/structure
relations.
Despite
advances,
we
still
face
formidable
challenges
in
deciphering
intricate
catalytic
mechanism,
elevating
activity
selectivity
to
new
heights,
pioneering
development
scalable
prototypes.
Advanced Science,
Journal Year:
2023,
Volume and Issue:
10(32)
Published: Oct. 2, 2023
Abstract
Researchers
are
investigating
innovative
composite
materials
for
renewable
energy
and
storage
systems.
The
major
goals
of
this
studies
i)
to
develop
a
low‐cost
stable
trimetallic
oxide
catalyst
ii)
change
the
electrical
environment
active
sites
through
site‐selective
Mo
substitution.
effect
on
NiCoMoO
4
is
elucidated
using
both
in
situ
X‐ray
absorption
spectroscopy
diffraction
analysis.
Also,
density
functional
theory
strategies
show
that
has
extraordinary
catalytic
redox
activity
because
high
adsorption
atom
crystal
plane.
Further,
it
demonstrated
hierarchical
nanoflower
structures
reduced
graphene
can
be
employed
as
powerful
bifunctional
electrocatalyst
oxygen
reduction/evolution
reactions
alkaline
solutions,
providing
small
overpotential
difference
0.75
V.
Zn–air
batteries
based
developed
exhibit
outstanding
cycling
stability
high‐power
125.1
mW
cm
−2
.
This
work
encourages
use
practical
applications
provides
an
interesting
concept
designing
electrocatalyst.
Carbon Neutralization,
Journal Year:
2024,
Volume and Issue:
3(2), P. 172 - 198
Published: Feb. 26, 2024
Abstract
Water
splitting
is
a
critical
process
for
the
production
of
green
hydrogen,
contributing
to
advancement
circular
economy.
However,
application
water
devices
on
large
scale
primarily
impeded
by
sluggish
oxygen
evolution
reaction
(OER)
at
anode.
Thus,
developing
and
designing
efficient
OER
catalysts
significant
target.
NiFe‐based
are
extensively
researched
as
excellent
electrocatalysts
due
their
affordability,
abundant
reserves,
intrinsic
activities.
they
still
suffer
from
long‐term
stability
challenges.
To
date,
few
systematic
strategies
improving
durability
have
been
reported.
In
this
review,
various
advanced
introduced.
Moreover,
challenges
in
alkaline
media,
including
iron
segregation,
structural
degradation,
peeling
substrate
summarized.
More
importantly,
enhance
highlighted
opportunities
discussed
facilitate
future
studies
electrolysis.
This
review
presents
design
strategy
anion
exchange
membrane
(AEM)
electrolyzers
overcome
OER,
which
also
emphasizes
importance
media
its
significance
achieving
large‐scale
commercialization.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(38)
Published: July 14, 2024
Abstract
Replacing
the
slow
protonation
process
of
oxygen
evolution
reaction
(OER)
with
fast
alcohol
electro‐oxidation
can
decrease
driving
potentials,
thus
improving
overall
efficiency
electrochemical
devices.
However,
formation
effective
catalytic
sites
for
oxidation
remains
challenging
in
accelerating
to
inhibit
metal
leaching
and
improve
catalyst
stability.
Herein,
asymmetric
Ni‐O‐Cr
are
constructed
by
alloying
Cr
into
NiO
matrix
optimize
coordination
environments,
showing
significantly
enhanced
stability
during
electro‐oxidation.
The
maintain
constant
valence
states
Ni
oxidation,
efficiently
suppressing
dissolution
even
at
high
potentials.
In
situ
characterizations
combined
theoretical
calculations
indicate
that
adsorption
activation
OH*
molecules
compared
pure
NiO,
increasing
anodic
kinetics.
results
also
smaller
gap
3
d
‐O
2
p
strengthens
charge
transfer,
leading
This
work
gives
insights
boosting
using
sites‐enriched
solid‐solution
electrocatalysts.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(14)
Published: Feb. 15, 2024
As
a
sustainable
valorization
route,
electrochemical
glycerol
oxidation
reaction
(GOR)
involves
in
formation
of
key
OH*
and
selective
adsorption/cleavage
C-C(O)
intermediates
with
multi-step
electron
transfer,
thus
suffering
from
high
potential
poor
formate
selectivity
for
most
non-noble-metal-based
electrocatalysts.
So,
it
remains
challenging
to
understand
the
structure-property
relationship
as
well
construct
synergistic
sites
realize
high-activity
high-selectivity
GOR.
Herein,
we
successfully
achieve
dual-high
performance
low
potentials
superior
GOR
by
forming
Lewis
Brønsted
acid
Ni-alloyed
Co-based
spinel.
The
optimized
NiCo
oxide
solid-acid
electrocatalyst
exhibits
(1.219
V@10
mA/cm
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(35)
Published: June 5, 2024
The
utilization
of
rare
earth
elements
to
regulate
the
interaction
between
catalysts
and
oxygen-containing
species
holds
promising
prospects
in
field
oxygen
electrocatalysis.
Through
structural
engineering
adsorption
regulation,
it
is
possible
achieve
high-performance
catalytic
sites
with
a
broken
activity-stability
tradeoff.
Herein,
this
work
fabricates
hierarchical
CeO
Advanced Science,
Journal Year:
2023,
Volume and Issue:
10(29)
Published: Aug. 8, 2023
Abstract
The
development
of
efficient
and
economical
electrocatalysts
for
oxygen
evolution
reaction
(OER)
is
paramount
importance
the
sustainable
production
renewable
fuels
energy
storage
systems;
however,
sluggish
OER
kinetics
involving
multistep
four
proton‐coupled
electron
transfer
hampers
progress
in
these
systems.
Fortunately,
surface
reconstruction
offers
promising
potential
to
improve
catalyst
design.
Anion
modulation
plays
a
crucial
role
controlling
extent
positively
persuading
reconstructed
species'
performances.
This
review
starts
by
providing
general
explanation
how
various
types
anions
can
trigger
dynamic
create
different
combinations
with
pre‐catalysts.
Next,
influences
anion
on
manipulating
process
are
discussed
based
situ
advanced
characterization
techniques.
Furthermore,
effects
survived
anionic
groups
species
water
oxidation
activity
further
discussed.
Finally,
challenges
prospects
future
directions
redirecting
construct
highly
practical
catalysts
proposed.