Applied Catalysis B Environment and Energy,
Journal Year:
2024,
Volume and Issue:
358, P. 124371 - 124371
Published: July 5, 2024
Advancing
zinc-air
battery
(ZAB)
technology
necessitates
the
development
of
air
cathode
electrocatalyst
systems
that
demonstrate
high
reactivity
and
stability.
We
introduce
a
novel
method
to
fabricate
robust
catalyst-support
hybrid.
This
hybrid
comprises
Co-doped
Pt
nanoparticles
(NPs)
anchored
on
metal
oxide
(Ex-PtCoWO)
nanofibers
(NFs),
synthesized
via
electrospinning
followed
by
selective
ex-solution.
Controlling
ex-solution
NPs
leads
highly
active
stable
oxygen
reduction
reaction
(ORR).
Moreover,
three-dimensional
CoWO4-x
NFs
network
enhances
surface
exposure
ex-solved
NPs,
thereby
aiding
both
provision
sites
for
evolution
(OER)
during
ZAB
recharge.
The
Ex-PtCoWO
NF
exhibits
an
ORR
half-wave
potential
0.89
V
OER
1.69
at
10
mA
cm−2
in
alkaline
media.
ZABs
utilizing
show
extended
cycle
life
over
240
h
with
reduced
charge-discharge
polarization,
compared
commercial
catalysts.
Inorganic Chemistry Frontiers,
Journal Year:
2024,
Volume and Issue:
11(7), P. 2007 - 2016
Published: Jan. 1, 2024
The
well-distributed
cobalt
nanoparticles,
coupled
with
the
large
specific
surface
area
and
high
conductivity
of
catalyst,
expand
effective
number
active
sites
to
achieve
catalytic
activity
toward
both
ORR
OER.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 22, 2024
Abstract
Perovskite‐type
oxides
are
widely
employed
as
oxygen
evolution
reaction
(OER)
electrocatalysts
due
to
their
tunable
composition,
diverse
structure,
abundant
natural
reserves,
remarkable
stability,
and
low
cost.
The
intrinsic
OER
electrocatalytic
activity
of
these
perovskite
is
generally
enhanced
by
improving
conductivity,
increasing
specific
surface
area,
optimizing
the
adsorption
oxygen‐containing
intermediates.
This
achieved
through
rationally
designed
strategies,
including
compositional
engineering,
defect
hybridization,
regulation.
In
this
review,
recent
advances
in
for
summarized,
with
a
focus
on
exploring
structure‐performance
relationships.
review
provides
brief
introduction
application
OER,
followed
classification
characteristics
oxides.
primary
catalytic
mechanisms,
well‐established
descriptors
discussed.
key
strategies
concentrated
enhancing
activity,
composition
reconstruction.
Finally,
challenges
opportunities
developing
high‐performance
presented.
Applied Catalysis B Environment and Energy,
Journal Year:
2024,
Volume and Issue:
358, P. 124371 - 124371
Published: July 5, 2024
Advancing
zinc-air
battery
(ZAB)
technology
necessitates
the
development
of
air
cathode
electrocatalyst
systems
that
demonstrate
high
reactivity
and
stability.
We
introduce
a
novel
method
to
fabricate
robust
catalyst-support
hybrid.
This
hybrid
comprises
Co-doped
Pt
nanoparticles
(NPs)
anchored
on
metal
oxide
(Ex-PtCoWO)
nanofibers
(NFs),
synthesized
via
electrospinning
followed
by
selective
ex-solution.
Controlling
ex-solution
NPs
leads
highly
active
stable
oxygen
reduction
reaction
(ORR).
Moreover,
three-dimensional
CoWO4-x
NFs
network
enhances
surface
exposure
ex-solved
NPs,
thereby
aiding
both
provision
sites
for
evolution
(OER)
during
ZAB
recharge.
The
Ex-PtCoWO
NF
exhibits
an
ORR
half-wave
potential
0.89
V
OER
1.69
at
10
mA
cm−2
in
alkaline
media.
ZABs
utilizing
show
extended
cycle
life
over
240
h
with
reduced
charge-discharge
polarization,
compared
commercial
catalysts.
