Advanced Materials,
Год журнала:
2022,
Номер
34(18)
Опубликована: Фев. 1, 2022
Abstract
Transition
metals,
in
particular
noble
are
the
most
common
species
metal‐mediated
water
electrolysis
because
they
serve
as
highly
active
catalytic
sites.
In
many
cases,
presence
of
nontransition
that
is,
s‐,
p‐,
and
f‐block
metals
with
high
natural
abundance
earth‐crust
material
is
indispensable
to
boost
efficiency
durability
electrolysis.
This
why
alkali
alkaline‐earth
rare‐earth
lean
metalloids
receive
growing
interest
this
research
area.
spite
pivotal
role
these
tuning
electrolysis,
there
far
more
room
for
developments
toward
a
knowledge‐based
catalyst
design.
review,
five
classes
which
successfully
utilized
special
emphasis
on
electronic
structure–catalytic
activity
relationships
phase
stability,
discussed.
Moreover,
specific
fundamental
aspects
electrocatalysts
well
perspective
field
also
addressed
account.
It
anticipated
review
can
trigger
broader
using
discovery
advanced
polymetal‐containing
practical
splitting.
Advanced Materials,
Год журнала:
2021,
Номер
33(20)
Опубликована: Март 25, 2021
Abstract
The
proton
exchange
membrane
(PEM)
water
electrolysis
is
one
of
the
most
promising
hydrogen
production
techniques.
oxygen
evolution
reaction
(OER)
occurring
at
anode
dominates
overall
efficiency.
Developing
active
and
robust
electrocatalysts
for
OER
in
acid
a
longstanding
challenge
PEM
electrolyzers.
Most
catalysts
show
unsatisfied
stability
under
strong
acidic
oxidative
conditions.
Such
also
leads
to
difficulties
better
understanding
mechanisms.
This
review
aims
provide
current
progress
on
mechanisms
acid,
analyze
strategies
enhance
both
activity
stability,
summarize
state‐of‐the‐art
acid.
First,
prevailing
are
reviewed
establish
physicochemical
structure–activity
relationships
guiding
design
highly
efficient
with
stable
performance.
reported
approaches
improve
activity,
from
macroview
microview,
then
discussed.
To
problem
instability,
key
factors
affecting
catalyst
summarized
surface
reconstruction
Various
noble‐metal‐based
non‐noble‐metal‐based
reviewed.
Finally,
challenges
perspectives
development
Advanced Materials,
Год журнала:
2021,
Номер
33(17)
Опубликована: Март 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
Chemical Reviews,
Год журнала:
2023,
Номер
123(9), С. 6257 - 6358
Опубликована: Март 21, 2023
The
oxygen
evolution
reaction
(OER)
and
reduction
(ORR)
are
core
steps
of
various
energy
conversion
storage
systems.
However,
their
sluggish
kinetics,
i.e.,
the
demanding
multielectron
transfer
processes,
still
render
OER/ORR
catalysts
less
efficient
for
practical
applications.
Moreover,
complexity
catalyst–electrolyte
interface
makes
a
comprehensive
understanding
intrinsic
mechanisms
challenging.
Fortunately,
recent
advances
in
situ/operando
characterization
techniques
have
facilitated
kinetic
monitoring
under
conditions.
Here
we
provide
selected
highlights
mechanistic
studies
with
main
emphasis
placed
on
heterogeneous
systems
(primarily
discussing
first-row
transition
metals
which
operate
basic
conditions),
followed
by
brief
outlook
molecular
catalysts.
Key
sections
this
review
focused
determination
true
active
species,
identification
sites,
reactive
intermediates.
For
in-depth
insights
into
above
factors,
short
overview
metrics
accurate
characterizations
is
provided.
A
combination
obtained
time-resolved
information
reliable
activity
data
will
then
guide
rational
design
new
Strategies
such
as
optimizing
restructuring
process
well
overcoming
adsorption-energy
scaling
relations
be
discussed.
Finally,
pending
current
challenges
prospects
toward
development
homogeneous
presented.
eScience,
Год журнала:
2021,
Номер
1(1), С. 69 - 74
Опубликована: Сен. 21, 2021
Electrochemical
water
splitting
is
a
sustainable
and
feasible
strategy
for
hydrogen
production
but
hampered
by
the
sluggish
anodic
oxygen
evolution
reaction
(OER).
Herein,
an
effective
approach
introduced
to
significantly
decrease
cell
voltage
replacing
OER
with
urea
oxidation
(UOR).
A
Ni2P/NiMoP
nanosheet
catalyst
hierarchical
architecture
uniformly
grown
on
nickel
foam
(NF)
substrate
through
simple
hydrothermal
phosphorization
method.
The
achieves
impressive
HER
activity,
low
overpotential
of
only
22
mV
at
10
mA
cm–2
Tafel
slope
34.5
dec–1.
In
addition,
reduced
from
1.49
V
1.33
after
introduction
0.33
M
urea.
Notably,
two-electrode
electrolyzer
employing
as
bifunctional
exhibits
current
density
1.35
excellent
long-term
durability
80
h.
Energy & Environmental Science,
Год журнала:
2021,
Номер
14(4), С. 1722 - 1770
Опубликована: Янв. 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.
Abstract
Electrocatalytic
water
splitting
(2H
2
O
→
2H
+
)
is
a
very
promising
avenue
to
effectively
and
environmentally
friendly
produce
highly
pure
hydrogen
(H
oxygen
(O
at
large
scale.
Different
materials
have
been
developed
enhance
the
efficiency
for
splitting.
Among
them,
chalcogenides
with
unique
atomic
arrangement
high
electronic
transport
show
interesting
catalytic
properties
in
various
electrochemical
reactions,
such
as
evolution
reaction,
overall
splitting,
while
control
of
their
morphology
structure
vital
importance
performance.
Herein,
general
synthetic
methods
are
summarized
prepare
metal
different
strategies
designed
improve
performance
The
remaining
challenges
research
development
possible
directions
future
also
summarized.
Angewandte Chemie International Edition,
Год журнала:
2022,
Номер
61(35)
Опубликована: Июнь 22, 2022
Manipulating
the
active
species
and
improving
structural
stabilization
of
sulfur-containing
catalysts
during
OER
process
remain
a
tremendous
challenge.
Herein,
we
constructed
NiO/NiS2
Fe-NiO/NiS2
as
catalyst
models
to
study
effect
Fe
doping.
As
expected,
exhibits
low
overpotential
270
mV
at
10
mA
cm-2
.
The
accumulation
hydroxyl
groups
on
surface
materials
after
doping
can
promote
formation
highly
NiOOH
lower
potential.
Moreover,
investigated
level
corrosion
M-S
bonds
compared
stability
variation
with
different
locations.
Interestingly,
bonded
S
in
bulk
sacrificial
agent
alleviate
oxidation
partial
Ni-S
thus
endow
long-term
durability.
This
work
could
motivate
community
focus
more
resolving
materials.
