Carbon Energy,
Journal Year:
2024,
Volume and Issue:
6(6)
Published: Feb. 23, 2024
Abstract
Electrocatalytic
water
splitting
seems
to
be
an
efficient
strategy
deal
with
increasingly
serious
environmental
problems
and
energy
crises
but
still
suffers
from
the
lack
of
stable
electrocatalysts.
Designing
practical
electrocatalysts
by
introducing
defect
engineering,
such
as
hybrid
structure,
surface
vacancies,
functional
modification,
structural
distortions,
is
proven
a
dependable
solution
for
fabricating
high
catalytic
activities,
robust
stability,
good
practicability.
This
review
overview
some
relevant
reports
about
effects
engineering
on
electrocatalytic
performance
In
detail,
types
defects,
preparation
characterization
methods,
performances
are
presented,
emphasizing
introduced
defects
electronic
structures
optimization
intermediates'
adsorption
throughout
review.
Finally,
existing
challenges
personal
perspectives
possible
strategies
enhancing
proposed.
An
in‐depth
understanding
will
light
way
design
high‐efficiency
other
applications.
Advanced Functional Materials,
Journal Year:
2022,
Volume and Issue:
32(34)
Published: June 14, 2022
Abstract
Polymeric
metal‐organic
framework
(MOF)‐derived
composites
are
promising
functional
materials
because
of
their
exceptional
chemical
homogeneity,
designable
components,
and
adjustable
pore
size.
The
modulation
oxygen
Mn
vacancies
via
the
introduction
heteroatoms
changes
in
annealing
temperature
MOFs‐derived
can
be
a
possible
solution
to
investigate
polarization
loss
mechanism,
which
facilitates
improvement
electromagnetic
capacity.
Herein,
design
laminate‐stacked
sphere‐shaped
trimetallic
CoNiMn‐MOFs
is
presented.
derived
CoNi/MnO@C
retain
original
topography
MOFs.
concentration
increases
with
incorporation
heteroatoms,
but
decreases
temperature,
prevails
mechanism
rather
than
contribution
2+
heterogeneous
interfaces.
Therefore,
minimum
reflection
sample
demonstrates
−55.2
dB
at
2.6
mm
broad
effective
absorption
bandwidth
reaches
8.0
GHz
2.1
mm.
This
work
expected
provide
meaningful
insights
into
significant
effect
ion
vacancy
on
EM
wave‐absorbing
performance
Mn‐based
composites.
Advanced Functional Materials,
Journal Year:
2022,
Volume and Issue:
33(7)
Published: Dec. 9, 2022
Abstract
Developing
efficient
and
inexpensive
electrocatalysts
for
the
hydrogen
evolution
reaction
(HER)
is
critical
to
commercial
viability
of
electrochemical
clean
energy
technologies.
Transition
metal
phosphides
(TMPs),
with
merits
abundant
reserves,
unique
structure,
tunable
composition,
high
electronic
conductivity,
are
recognized
as
attractive
HER
catalytic
materials.
Nevertheless,
electrocatalytic
activity
TMPs
still
limited
by
various
thorough
issues
inherent
performance
bottlenecks.
In
this
review,
these
carefully
sorted,
corresponding
reasonable
explanations
solutions
elucidated
on
basis
origins
TMPs.
Subsequently,
highly
targeted
multiscale
strategies
improve
comprehensively
presented.
Additionally,
scientific
constructing
high‐efficiency
TMP‐based
proposed.
Finally,
process,
mechanism
research,
catalyst
construction,
their
application
expansion
mentioned
challenges
future
directions
research
field.
Expectedly,
review
offers
professional
guidelines
rational
design
practical
catalysts.
ACS Energy Letters,
Journal Year:
2022,
Volume and Issue:
7(10), P. 3311 - 3328
Published: Sept. 8, 2022
Layered
double
hydroxides
(LDHs)
have
attracted
intense
interest
in
recent
research
and
hold
promise
a
vast
range
of
applications.
Because
the
layered
structure
diverse
compositions,
transition-metal-based
LDHs
are
projected
to
function
as
active
electrocatalysts
for
oxygen
evolution
reaction
(OER)
hydrogen
(HER).
Delamination
LDH
hexagonal
platelet
crystals
nanometer
level
leads
enhanced
activity.
However,
several
limitations,
including
collapse
poor
conductivity
LDHs,
impede
their
application
electrochemical
catalysis.
Consequently,
LDH-derived
nanomaterials
being
employed
high-performance
overall
water
splitting.
In
this
Review,
we
highlight
progress
development
materials,
bimetal
oxides
hydroxides,
bimetallic
nitrides/phosphides,
sulfides/selenides,
MOFs,
remarkable
Focus
is
placed
on
methodologies
catalytic
efficiency
splitting,
key
problems,
future
perspectives.
Angewandte Chemie International Edition,
Journal Year:
2023,
Volume and Issue:
62(17)
Published: March 2, 2023
The
construction
of
high-activity
and
low-cost
electrocatalysts
is
critical
for
efficient
hydrogen
production
by
water
electrolysis.
Herein,
we
developed
an
advanced
electrocatalyst
anchoring
well-dispersed
Ir
nanoparticles
on
nickel
metal-organic
framework
(MOF)
Ni-NDC
(NDC:
2,6-naphthalenedicarboxylic)
nanosheets.
Benefiting
from
the
strong
synergy
between
MOF
through
interfacial
Ni-O-Ir
bonds,
synthesized
Ir@Ni-NDC
showed
exceptional
electrocatalytic
performance
evolution
reaction
(HER),
oxygen
(OER)
overall
splitting
in
a
wide
pH
range,
superior
to
commercial
benchmarks
most
reported
electrocatalysts.
Theoretical
calculations
revealed
that
charge
redistribution
bridge
induced
optimization
H2
O,
OH*
H*
adsorption,
thus
leading
accelerated
electrochemical
kinetics
HER
OER.
This
work
provides
new
clue
exploit
bifunctional
pH-universal
splitting.
Advanced Functional Materials,
Journal Year:
2022,
Volume and Issue:
33(1)
Published: Oct. 26, 2022
Abstract
Designing
well‐defined
interfacial
chemical
bond
bridges
is
an
effective
strategy
to
optimize
the
catalytic
activity
of
metal–organic
frameworks
(MOFs),
but
it
remains
challenging.
Herein,
a
facile
in
situ
growth
reported
for
synthesis
tightly
connected
2D/2D
heterostructures
by
coupling
MXene
with
CoBDC
nanosheets.
The
multifunctional
nanosheets
high
conductivity
and
ideal
hydrophilicity
as
bridging
carriers
can
ensure
structural
stability
sufficient
exposure
active
sites.
Moreover,
Co–O–Ti
formed
at
interface
effectively
triggers
charge
transfer
modulates
electronic
structure
Co‐active
site,
which
enhances
reaction
kinetics.
As
result,
optimized
CoBDC/MXene
exhibits
superior
hydrogen
evolution
(HER)
low
overpotentials
29,
41,
76
mV
10
mA
cm
−2
alkaline,
acidic,
neutral
electrolytes,
respectively,
comparable
commercial
Pt/C.
Theoretical
calculation
demonstrates
that
bridging‐induced
electron
redistribution
optimizes
free
energy
water
dissociation
adsorption,
resulting
improved
evolution.
This
study
not
only
provides
novel
electrocatalyst
efficient
HER
all
pH
conditions
also
opens
up
new
avenue
designing
highly
systems.
Advanced Functional Materials,
Journal Year:
2022,
Volume and Issue:
32(47)
Published: Sept. 16, 2022
Abstract
High‐entropy
materials
(HEMs)
have
been
in
the
spotlight
as
emerging
catalysts
for
electrochemical
water
splitting.
In
particular,
HEM
feature
multi‐element
active
sites
and
unsaturated
coordination
well
entropy
stabilization
comparison
with
their
single‐element
counterparts.
Herein,
a
comprehensive
overview
of
used
splitting
is
provided,
covering
both
hydrogen
evolution
reaction
(HER)
oxygen
(OER).
Particularly,
review
begins
discussions
concept
structure
HEMs.
addition,
effective
strategies
rationally
designing
HEMs
on
basis
computational
techniques
experimental
aspects
described.
Importantly,
importance
computationally
aided
methods,
that
is,
density
functional
theory
calculations,
high‐throughput
screening,
machine
learning,
to
discovery
design
HEMs,
Furthermore,
applications
field
electrolysis
are
reviewed.
Eventually,
an
outlook
regarding
prospects
future
opportunities
provided.
