Deleted Journal,
Год журнала:
2024,
Номер
1(2), С. 181 - 206
Опубликована: Авг. 4, 2024
Abstract
Metal–organic
frameworks
(MOFs)
have
emerged
as
promising
materials
in
the
realm
of
electrocatalysis
due
to
their
high
surface
area,
tunable
porosity,
and
versatile
chemical
functionality.
However,
practical
application
has
been
hampered
by
inherent
limitations
such
low
electrical
conductivity
a
limited
number
active
metal
sites.
Researchers
addressed
these
challenges
through
various
strategies,
including
enhancing
incorporating
conductive
nanoparticles,
modifying
structure
composition
MOFs
replacing
nodes
functionalizing
linkers,
preparing
catalysts
thermal
processes
decarburization
conversion
into
oxides,
phosphides
(MPs),
sulfides
(MSs).
This
review
provided
comprehensive
summary
strategies
that
were
employed
enhance
electroactivity
for
improved
electrocatalytic
performance
recent
years.
It
also
explored
future
directions
potential
innovations
design
synthesis
MOF‐based
electrocatalysts,
offering
valuable
insights
advancing
sustainable
energy
technologies.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 10, 2025
Abstract
Defect‐engineering‐involved
metal‐organic
frameworks
(MOFs)
have
been
highly
valued
in
many
fields
due
to
the
enhanced
porosity
and
abundant
active
sites,
but
how
systematic
modulation
on
deficiency
influencing
fluorescent
sensing
performance
is
still
its
infancy.
Here,
defect‐engineering
of
MOF‐525
used
modulate
exposure
zirconium
(Zr)
clusters
sieving
capability
inner
channels,
enabling
precise
phosphoryl
fluoride
nerve
agents
with
specific
chemical
activity
molecular
dimensions.
Controllable
defects
transformed
localized
emission
porphyrin
into
ligand‐metal
charge
transferring
(LMCT)
gradual
loss
ligand
molecules,
which
interrupted
upon
coordination
agents,
triggering
a
red
turn‐on
fluorescence.
Thus,
defective
60%
effectively
discriminates
(e.g.,
sarin,
soman)
from
similar
substances
tabun,
venomous
agent
X)
synergistic
effect
dimension.
It
exhibits
sensitive
(0.96
n
m
/3.8
ppb),
rapid
(<1
s)
response
toward
target
robust
environmental
interference
acidic,
humid
common
substances.
This
work
enhances
understanding
MOFs
correpsonding
luminescent
behavior,
paving
new
avenue
for
strategy
trace
real
vapor.
Nature Communications,
Год журнала:
2025,
Номер
16(1)
Опубликована: Фев. 3, 2025
Abstract
In
the
realm
of
heterogeneous
catalysis,
diffusion
reactants
into
catalytically
active
sites
stands
as
a
pivotal
determinant
influencing
both
turnover
frequency
and
geometric
selectivity
in
product
formation.
While
accelerated
can
elevate
reaction
rates,
it
often
entails
compromise
selectivity.
Porous
catalysts,
including
metal-organic
covalent
organic
frameworks,
confront
formidable
obstacles
regulating
reactant
rates.
Consequently,
chemical
functionality
catalysts
typically
governs
This
study
presents
an
approach
harnessing
length
to
achieve
improved
manipulation
reactant-active
site
residence
time
at
augment
kinetics.
Through
deployment
thin
film
composed
porous
framework
catalyst,
we
illustrate
how
programming
within
cross-flow
microfluidic
catalytic
reactor
concurrently
amplify
(exceeding
1000-fold)
enhance
(
~
2-fold)
relative
conventional
nano/microcrystals
catalyst
one-pot
reactor.
diffusion-programed
strategy
represents
robust
solution
surmount
constraints
imposed
by
bulk
marking
advancement
design
catalyst-driven
reactions.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 7, 2025
Abstract
The
NiFe‐based
layered
double
hydroxides
(LDH)
undergo
surface
reconstruction,
generating
metal
hydroxyl
oxides
that
act
as
active
species
during
the
alkaline
oxygen
evolution
reaction
(OER).
However,
sluggish
reconstruction
process
and
excessive
oxidation
at
higher
anodic
potentials
frustrate
OER
activity
stability.
Herein,
a
cation–anion
collaborative
coordination
strategy
is
harnessed
to
build
(Ni,
Fe)─S─Zn
structures
in
NiFe
LDH
on
nickel
foam
(S‐NiFeZn
LDH/NF),
which
lowers
energy
barrier
aids
forming
highly
β‐NiOOH
process.
Meanwhile,
also
optimize
adsorption
of
oxygen‐containing
intermediates,
enhancing
kinetics.
As
result,
S‐NiFeZn
LDH/NF
achieves
low
overpotentials
201
mV
10
mA
cm
−2
293
500
1.0
m
KOH.
Moreover,
cell
assembled
with
anode
commercial
NiMo
cathode
demonstrates
excellent
overall
water
splitting
activity,
voltages
1.62
1.81
V
KOH,
exhibits
ultralong‐term
durability
over
h
,
even
operating
stably
for
200
an
electrolyzer
under
industrial
conditions
(30%
KOH
80
°C).
Angewandte Chemie International Edition,
Год журнала:
2023,
Номер
63(6)
Опубликована: Дек. 28, 2023
Triggering
rapid
reconstruction
reactions
holds
the
potential
to
approach
theoretical
limits
of
oxygen
evolution
reaction
(OER),
and
spin
state
manipulation
has
shown
great
promise
in
this
regard.
In
study,
transition
Fe
states
from
low
high
was
successfully
achieved
by
adjusting
surface
electronic
structure
pentlandite.
situ
characterization
kinetic
simulations
confirmed
that
high-spin
promoted
accumulation
OH-
on
accelerated
electron
transfer,
thereby
enhancing
kinetics
reaction.
Furthermore,
calculations
revealed
lower
d-band
center
optimized
adsorption
active
intermediates,
kinetics.
Remarkably,
pentlandites
with
exhibited
ultra-low
overpotential
(245
mV
@
10
mA
cm-2
)
excellent
stability.
These
findings
provided
new
insights
for
design
fabrication
highly
OER
electrocatalysts.
ACS Nano,
Год журнала:
2023,
Номер
17(24), С. 24564 - 24592
Опубликована: Дек. 4, 2023
The
development
of
highly
active
and
stable
electrode
materials
for
the
oxygen
evolution
reaction
(OER)
is
essential
widespread
application
electrochemical
energy
conversion
systems.
In
recent
years,
various
metal–organic
frameworks
(MOFs)
with
self-supporting
array
structures
have
been
extensively
studied
because
their
high
porosity,
abundant
metal
sites,
flexible
adjustable
structures.
This
review
provides
an
overview
progress
in
design,
preparation,
applications
MOF-based
nanoarrays
OER,
beginning
introduction
architectural
advantages
characteristics
MOFs.
Subsequently,
design
principles
robust
efficient
as
OER
electrodes
are
highlighted.
Furthermore,
detailed
discussions
focus
on
composition,
structure,
performance
pristine
MOF
(MOFNAs)
composite
nanoarrays.
On
one
hand,
effects
two
components
MOFs
several
modification
methods
discussed
detail
MOFNAs.
other
emphasizes
use
composed
nanomaterials,
such
oxides,
hydroxides,
oxyhydroxides,
chalcogenides,
MOFs,
nanoparticles,
to
guide
rational
electrodes.
Finally,
perspectives
current
challenges,
opportunities,
future
directions
this
research
field
provided.
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(36)
Опубликована: Июнь 12, 2024
The
development
of
readily
accessible
and
interpretable
descriptors
is
pivotal
yet
challenging
in
the
rational
design
metal-organic
framework
(MOF)
catalysts.
This
study
presents
a
straightforward
physically
activity
descriptor
for
oxygen
evolution
reaction
(OER),
derived
from
dataset
bimetallic
Ni-based
MOFs.
Through
an
artificial-intelligence
(AI)
data-mining
subgroup
discovery
(SGD)
approach,
combination
d-band
center
number
missing
electrons
e
