Deleted Journal,
Journal Year:
2023,
Volume and Issue:
2, P. e9120070 - e9120070
Published: May 5, 2023
Imposing
phase
engineering
to
porous
materials
is
promising
realize
outperforming
electrocatalytic
performances
by
taking
advantages
of
the
merits
nanoarchitecture
and
heterophase
structure.
In
this
work,
amorphous/crystalline
ruthenium
oxide
(RuO2)
particles
with
rationally
regulated
heterophases
are
successfully
prepared
integrating
into
material
synthesis.
The
resultant
defect-rich
RuO2
exhibit
excellent
performance
toward
oxygen
evolution
reaction,
achieving
a
low
overpotential
165
mV
at
current
density
10
mA·cm−2
high
mass
activity
up
133.8
200
mV.
This
work
indicates
that
synergistic
effect
structural
characteristics
enables
trigger
superior
activity.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(25)
Published: March 8, 2024
Abstract
Non‐noble
transition
metal
(TM)‐based
compounds
have
recently
become
a
focal
point
of
extensive
research
interest
as
electrocatalysts
for
the
two
electron
oxygen
reduction
(2e
−
ORR)
process.
To
efficiently
drive
this
reaction,
these
TM‐based
must
bear
unique
physiochemical
properties,
which
are
strongly
dependent
on
their
phase
structures.
Consequently,
adopting
engineering
strategies
toward
structure
has
emerged
cutting‐edge
scientific
pursuit,
crucial
achieving
high
activity,
selectivity,
and
stability
in
electrocatalytic
This
comprehensive
review
addresses
intricate
field
applied
to
non‐noble
2e
ORR.
First,
connotation
fundamental
concepts
related
kinetics
thermodynamics
succinctly
elucidated.
Subsequently,
focus
shifts
detailed
discussion
various
approaches,
including
elemental
doping,
defect
creation,
heterostructure
construction,
coordination
tuning,
crystalline
design,
polymorphic
transformation
boost
or
revive
ORR
performance
(selectivity,
stability)
catalysts,
accompanied
by
an
insightful
exploration
phase‐performance
correlation.
Finally,
proposes
fresh
perspectives
current
challenges
opportunities
burgeoning
field,
together
with
several
critical
directions
future
development
electrocatalysts.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(28)
Published: April 26, 2024
Metal
defect
engineering
is
a
highly
effective
strategy
for
addressing
the
prevalent
high
overpotential
issues
associated
with
transition
metal
oxides
functioning
as
dual-function
commercial
oxygen
reduction
reaction/oxygen
evolution
reaction
catalysts
increasing
their
activity
and
stability.
However,
formation
energy
of
defects
poses
challenge
to
development
strategies
precisely
control
selectivity
during
formation.
Here,
density
functional
theory
calculations
are
used
demonstrate
that
altering
pathway
releases
atoms
chlorides,
which
effectively
reduces
defects.
The
on
monometallic
oxide
surface
(Mn,
Fe,
Co,
Ni)
selectively
produced
using
chlorine
plasma.
characterization
reveal
catalytic
enhanced
owing
electronic
delocalization
induced
by
defects,
theoretical
overpotential.
Notably,
ab
initio
molecular
dynamics
calculations,
ex
situ
XPS,
in
ATR-SEIRAS
suggest
improve
adsorption
reactive
species
active
sites
enhance
efficiency
product
desorption,
thereby
boosting
performance.
Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
12(30), P. 18832 - 18865
Published: Jan. 1, 2024
This
review
focuses
mainly
on
the
overall
facilitating
effect
of
heterostructures
OER
process.
The
fabrication
heterostructured
electrocatalysts
and
relationship
between
their
structures
electrocatalytic
properties
are
discussed.
Advanced Science,
Journal Year:
2024,
Volume and Issue:
11(24)
Published: March 18, 2024
Abstract
The
development
of
efficient
and
durable
non‐precious
hydrogen
evolution
reaction
(HER)
catalysts
for
scaling
up
alkaline
water/seawater
electrolysis
is
highly
desirable
but
challenging.
Amorphous‐crystalline
(A‐C)
heterostructures
have
garnered
attention
due
to
their
unusual
atomic
arrangements
at
hetero‐interfaces,
exposed
active
sites,
excellent
stability.
Here,
a
heterogeneous
synthesis
strategy
constructing
A‐C
non‐homogeneous
interfacial
centers
electrocatalysts
on
nanocages
presented.
Isolated
PdCo
clusters
nanoscale
islands
in
conjunction
with
Co
3
S
4
A‐C,
functioning
as
bifunctional
site
“island‐sea”
synergy,
enable
the
dynamic
confinement
design
metal
atoms,
resulting
HER
catalytic
activity
durability.
hierarchical
structure
hollow
porous
nanoclusters,
along
large
surface
area
multi‐dimensional
boundaries
defects,
provides
catalyst
abundant
centers.
Theoretical
calculations
demonstrate
that
combination
regulates
redistribution
interface
electrons
effectively,
promoting
sluggish
water‐dissociation
kinetics
cluster
sites.
Additionally,
PdCo‐Co
heterostructure
exhibit
outstanding
seawater
long‐term
stability
100
h,
which
can
be
powered
by
commercial
silicon
solar
cells.
This
finding
significantly
advances
large‐scale
production.
Chemical Reviews,
Journal Year:
2023,
Volume and Issue:
124(1), P. 164 - 209
Published: Dec. 4, 2023
The
performance
of
a
chemical
reaction
is
critically
dependent
on
the
electronic
and/or
geometric
structures
material
in
heterogeneous
catalysis.
Over
past
century,
Sabatier
principle
has
already
provided
conceptual
framework
for
optimal
catalyst
design
by
adjusting
structure
catalytic
via
change
composition.
Beyond
composition,
it
essential
to
recognize
that
atomic
catalyst,
encompassing
terraces,
edges,
steps,
kinks,
and
corners,
have
substantial
impact
activity
selectivity
reaction.
Crystal-phase
engineering
capacity
bring
about
alterations
configurations
enabling
control
over
coordination
numbers,
morphological
features,
arrangement
surface
atoms.
Modulating
crystallographic
phase
therefore
an
important
strategy
improving
stability,
activity,
materials.
Nonetheless,
complete
understanding
how
depends
crystal
remains
elusive,
primarily
due
absence
molecular-level
view
active
sites
across
various
phases.
In
this
review,
we
focus
assessing
dependence
phases
elucidate
challenges
complexities
inherent
catalysis,
ultimately
aiming
improved
design.
Angewandte Chemie International Edition,
Journal Year:
2023,
Volume and Issue:
62(18)
Published: March 4, 2023
Abstract
We
reported
herein
the
development
of
heterobimetallic
NiFe
molecular
platform
to
understand
synergistic
effect
in
water
oxidation
catalysis.
Compared
homonuclear
bimetallic
compounds
(NiNi
and
FeFe),
complex
possesses
more
remarkable
catalytic
performance.
Mechanistic
studies
suggest
that
this
difference
is
attributed
fact
synergy
can
effectively
promote
O−O
bond
formation.
The
generated
Ni
III
(
μ
‐O)Fe
IV
=O
key
intermediate
was
formed
via
intramolecular
oxyl‐oxo
coupling
between
bridged
O
radical
terminal
Fe
moiety.
