Advanced Functional Materials,
Journal Year:
2021,
Volume and Issue:
31(33)
Published: June 13, 2021
Abstract
Highly
efficient
electrocatalysts
composed
of
earth‐abundant
elements
are
desired
for
water‐splitting
to
produce
clean
and
renewable
chemical
fuel.
Herein,
a
heteroatomic‐doped
multi‐phase
Mo‐doped
nickel
phosphide/nickel
sulfide
(Mo‐NiP
x
/NiS
y
)
nanowire
electrocatalyst
is
designed
by
successive
phosphorization
sulfuration
method
boosting
overall
water
splitting
(both
oxygen
hydrogen
evolution
reactions
(HER))
in
alkaline
solution.
As
expected,
the
Mo‐NiP
electrode
possesses
low
overpotentials
both
at
high
current
densities
HER,
while
heterostructure
exhibits
active
performance
with
ultra‐low
137,
182,
250
mV
density
10,
100,
400
mA
cm
−2
1
m
KOH
solution,
respectively,
reaction.
In
particular,
as‐prepared
electrodes
exhibit
remarkable
full
1.42,
1.70,
2.36
V,
which
comparable
commercial
electrolysis.
Advanced Materials,
Journal Year:
2021,
Volume and Issue:
33(17)
Published: March 22, 2021
Abstract
Electrochemical
water
splitting
has
attracted
significant
attention
as
a
key
pathway
for
the
development
of
renewable
energy
systems.
Fabricating
efficient
electrocatalysts
these
processes
is
intensely
desired
to
reduce
their
overpotentials
and
facilitate
practical
applications.
Recently,
metal–organic
framework
(MOF)
nanoarchitectures
featuring
ultrahigh
surface
areas,
tunable
nanostructures,
excellent
porosities
have
emerged
promising
materials
highly
active
catalysts
electrochemical
splitting.
Herein,
most
pivotal
advances
in
recent
research
on
engineering
MOF
are
presented.
First,
design
catalytic
centers
MOF‐based/derived
summarized
compared
from
aspects
chemical
composition
optimization
structural
functionalization
at
atomic
molecular
levels.
Subsequently,
fast‐growing
breakthroughs
activities,
identification
sites,
fundamental
mechanisms
thoroughly
discussed.
Finally,
comprehensive
commentary
current
primary
challenges
future
perspectives
its
commercialization
hydrogen
production
provided.
Hereby,
new
insights
into
synthetic
principles
electrocatalysis
designing
utilization
offered,
thus
further
promoting
prosperity
wide
range
Nano Letters,
Journal Year:
2021,
Volume and Issue:
21(4), P. 1555 - 1565
Published: Feb. 11, 2021
With
many
apparent
advantages
including
high
surface
area,
tunable
pore
sizes
and
topologies,
diverse
periodic
organic–inorganic
ingredients,
metal–organic
frameworks
(MOFs)
have
been
identified
as
versatile
precursors
or
sacrificial
templates
for
preparing
functional
materials
advanced
electrodes
high-efficiency
catalysts
electrochemical
energy
storage
conversion
(EESC).
In
this
Mini
Review,
we
first
briefly
summarize
the
material
design
strategies
to
show
rich
possibilities
of
chemical
compositions
physical
structures
MOFs
derivatives.
We
next
highlight
latest
advances
focusing
on
composition/structure/performance
relationship
discuss
their
practical
applications
in
various
EESC
systems,
such
supercapacitors,
rechargeable
batteries,
fuel
cells,
water
electrolyzers,
carbon
dioxide/nitrogen
reduction
reactions.
Finally,
provide
some
our
own
insights
into
major
challenges
prospective
solutions
MOF-derived
EESC,
hoping
shed
light
future
development
highly
exciting
field.
Chemical Society Reviews,
Journal Year:
2021,
Volume and Issue:
50(17), P. 9817 - 9844
Published: Jan. 1, 2021
This
review
summarizes
the
recent
progress
related
to
field
of
doping
regulation
in
transition
metal
compounds,
aiming
give
an
overview
this
strategy
for
designing
high-performance
catalysts
towards
electrocatalytic
applications.
Science,
Journal Year:
2023,
Volume and Issue:
380(6645), P. 609 - 616
Published: May 11, 2023
Discovery
of
earth-abundant
electrocatalysts
to
replace
iridium
for
the
oxygen
evolution
reaction
(OER)
in
a
proton
exchange
membrane
water
electrolyzer
(PEMWE)
represents
critical
step
reducing
cost
green
hydrogen
production.
We
report
nanofibrous
cobalt
spinel
catalyst
codoped
with
lanthanum
(La)
and
manganese
(Mn)
prepared
from
zeolitic
imidazolate
framework
embedded
electrospun
polymer
fiber.
The
demonstrated
low
overpotential
353
millivolts
at
10
milliamperes
per
square
centimeter
degradation
OER
over
360
hours
acidic
electrolyte.
A
PEMWE
containing
this
anode
current
density
2000
2.47
volts
(Nafion
115
membrane)
or
4000
3.00
212
an
accelerated
stress
test.
Advanced Materials,
Journal Year:
2021,
Volume and Issue:
34(11)
Published: Nov. 30, 2021
Design
and
construction
of
low-cost
electrocatalysts
with
high
catalytic
activity
long-term
stability
is
a
challenging
task
in
the
field
catalysis.
Metal-organic
frameworks
(MOF)
are
promising
candidates
as
precursor
materials
development
highly
efficient
for
energy
conversion
storage
applications.
This
review
starts
summary
basic
concepts
key
evaluation
parameters
involved
electrochemical
water-splitting
reaction.
Then,
different
synthesis
approaches
reported
cobalt-based
Zeolitic
imidazolate
framework
(ZIF-67)
its
derivatives
critically
reviewed.
Additionally,
several
strategies
employed
to
enhance
electrocatalytic
ZIF-67-based
discussed
detail.
The
present
provides
succinct
insight
into
ZIF-67
(oxides,
hydroxides,
sulfides,
selenides,
phosphide,
nitrides,
telluride,
heteroatom/metal-doped
carbon,
noble
metal-supported
derivatives)
oxygen
evolution
reaction
(OER),
hydrogen
(HER),
overall
water
splitting
Finally,
this
concludes
associated
challenges
perspectives
on
developing
best
economic,
durable
materials.
Angewandte Chemie International Edition,
Journal Year:
2021,
Volume and Issue:
60(21), P. 11841 - 11846
Published: March 19, 2021
Abstract
The
development
of
efficient
and
low‐cost
electrocatalysts
toward
the
oxygen
evolution
reaction
(OER)
is
critical
for
improving
efficiency
several
electrochemical
energy
conversion
storage
devices.
Here,
we
report
an
elaborate
design
synthesis
porous
Co‐based
trimetallic
spinel
oxide
nanoboxes
(NiCo
2−
x
Fe
O
4
NBs)
by
a
novel
metal‐organic
framework
engaged
strategy,
which
involves
chemical
etching,
cation
exchange,
subsequent
thermal
oxidation
processes.
Owing
to
structural
compositional
advantages,
optimized
NiCo
NBs
(
about
0.117)
deliver
superior
electrocatalytic
performance
OER
with
overpotential
274
mV
at
10
mA
cm
−2
,
small
Tafel
slope
42
dec
−1
good
stability
in
alkaline
electrolyte,
much
better
than
that
bi/monometallic
oxides
even
commercial
RuO
2
.
Energy & Environmental Science,
Journal Year:
2021,
Volume and Issue:
14(4), P. 1722 - 1770
Published: Jan. 1, 2021
A
tuned
electronic
structure
favors
the
electrocatalytic
water
splitting
reactionviaaccelerating
reaction
kinetics,
changing
rate-determining
step,
and
optimizing
adsorption
energy
for
intermediates;
this
is
achievedviaintentionally
incorporating
imperfections
into
crystal
lattices
of
electrocatalysts.
Advanced Materials,
Journal Year:
2021,
Volume and Issue:
33(9)
Published: Jan. 29, 2021
Abstract
The
slow
kinetics
of
oxygen
evolution
reaction
(OER)
causes
high
power
consumption
for
electrochemical
water
splitting.
Various
strategies
have
been
attempted
to
accelerate
the
OER
rate,
but
there
are
few
studies
on
regulating
transport
reactants
especially
under
large
current
densities
when
mass
transfer
factor
dominates
reactions.
Herein,
Ni
x
Fe
1–
alloy
nanocones
arrays
(with
≈2
nm
surface
NiO/NiFe(OH)
2
layer)
adopted
boost
reactants.
Finite
element
analysis
suggests
that
high‐curvature
tips
can
enhance
local
electric
field,
which
induces
an
order
magnitude
higher
concentration
hydroxide
ions
(OH
−
)
at
active
sites
and
promotes
intrinsic
activity
by
67%
1.5
V.
Experimental
results
show
a
fabricated
NiFe
nanocone
array
electrode,
with
optimized
composition,
has
small
overpotential
190
mV
10
mA
cm
−2
255
500
.
When
calibrated
area,
electrode
outperforms
state‐of‐the‐art
electrocatalysts.
positive
effect
tip‐enhanced
field
in
promoting
is
also
confirmed
comparing
samples
different
tip
curvature
radii.
It
suggested
this
enhanced
generic
other
catalysts.
Angewandte Chemie International Edition,
Journal Year:
2021,
Volume and Issue:
60(42), P. 22885 - 22891
Published: Aug. 5, 2021
Abstract
Exploring
earth‐abundant
electrocatalysts
with
excellent
activity,
robust
stability,
and
multiple
functions
is
crucial
for
electrolytic
hydrogen
generation.
Porous
phosphorized
CoNi
2
S
4
yolk‐shell
spheres
(P‐CoNi
YSSs)
were
rationally
designed
synthesized
by
a
combined
hydrothermal
sulfidation
gas‐phase
phosphorization
strategy.
Benefiting
from
the
strengthened
Ni
3+
/Ni
2+
couple,
enhanced
electronic
conductivity,
hollow
structure,
P‐CoNi
YSSs
exhibit
activity
durability
towards
hydrogen/oxygen
evolution
urea
oxidation
reactions
in
alkaline
solution,
affording
low
potentials
of
−0.135
V,
1.512
1.306
V
(versus
reversible
electrode)
at
10
mA
cm
−2
,
respectively.
Remarkably,
when
used
as
anode
cathode
simultaneously,
catalyst
merely
requires
cell
voltage
1.544
water
splitting
1.402
electrolysis
to
attain
100
h,
outperforming
most
reported
nickel‐based
sulfides
even
noble‐metal‐based
electrocatalysts.
This
work
promotes
application
electrochemical
production
provides
feasible
approach
urea‐rich
wastewater
treatment.
