ChemSusChem,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 8, 2024
Abstract
The
conversion
of
5‐hydroxymethylfurfural
(HMF)
to
2,5‐diformylfuran
(DFF)
is
a
promising
approach
for
enhancing
biomass
utilization.
Nevertheless,
traditional
methods
using
noble
metal
catalysts
face
challenges
due
high
costs
and
poor
selectivity
towards
DFF.
Herein,
we
developed
novel
catalytic
electrode
integrating
N
‐hydroxyphthalimide
(NHPI)
into
metal‐organic
framework
on
hydrophilic
carbon
cloth.
This
design
significantly
enhances
the
selective
adsorption
HMF
stronger
hydrogen‐bond
interaction
between
electrode's
surface
C(sp
3
)−OH
group
in
compared
2
)=O
Additionally,
electro‐driven
dissociation
NHPI‐linker
generates
stabilized
‐Oxyl
radicals
that
promote
semi‐oxidation
under
neutral
conditions.
As
result,
this
achieves
yield
rate
138.2
mol
cat
−1
h
with
96.7
%
HMF‐to‐DFF
conversion.
work
introduces
strategy
designing
electrodes
radicals,
offers
method
electrocatalytic
DFF
synthesis,
leveraging
HMF.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 19, 2025
Abstract
Efficient
charge
separation
at
the
semiconductor/cocatalyst
interface
is
crucial
for
high‐performance
photoelectrodes,
as
it
directly
influences
availability
of
surface
charges
solar
water
oxidation.
However,
establishing
strong
molecular‐level
connections
between
these
interfaces
to
achieve
superior
interfacial
quality
presents
significant
challenges.
This
study
introduces
an
innovative
electrochemical
etching
method
that
generates
a
high
concentration
oxygen
vacancy
sites
on
BiVO
4
surfaces
(Ov‐BiVO
),
enabling
interactions
with
oxygen‐rich
ligands
MIL‐101.
reduces
formation
energy
and
promotes
conformal
growth
.
The
Ov‐BiVO
/MIL‐101
composite
exhibits
ideal
interface,
achieving
impressive
photocurrent
density
5.91
mA
cm
−2
1.23
V
RHE
,
along
excellent
stability.
high‐performing
photoanode
enables
unbiased
tandem
device
/MIL‐101‐Si
cell
system,
solar‐to‐hydrogen
efficiency
4.33%.
integration
mitigates
states
enhances
internal
electric
field,
facilitating
migration
photogenerated
holes
into
MIL‐101
overlayer.
process
activates
highly
efficient
Fe
catalytic
sites,
which
effectively
adsorb
molecules,
lowering
barrier
oxidation
improving
kinetics.
Further
studies
confirm
broad
applicability
vacancy‐induced
molecular
epitaxial
in
various
MOFs,
offering
valuable
insights
defect
engineering
optimizing
enhancing
photocatalytic
activity.
Chemical Reviews,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 18, 2025
The
electrocatalytic
technique,
as
an
efficient
energy
storage
and
conversion
technology,
has
attracted
significant
attention
to
address
exhaustion
environmental
pollution.
Usually,
the
activity
selectivity
of
reactions
are
largely
dominated
by
dynamic
process
occurring
on
electrocatalysts.
Therefore,
high-performance
electrocatalysts,
which
can
dominate
pathway
barrier
reactions,
great
significance
for
advancement
technique.
Metal-organic
frameworks
(MOFs),
emerging
crystalline
porous
materials,
present
structural
component
advantages
including
well-defined
structure,
high
surface
area,
large
porosity,
diverse
components,
easy
tailorability,
demonstrating
fantastic
potential
precise
fabrication
In
this
Review,
strategies
in
electrocatalysts
based
MOF-related
materials
specifically
introduced
from
aspects
catalytic
site
design
microenvironment
modulation
around
sites.
Furthermore,
representative
progress
achieved
various
applications
employing
MOF-based
is
systematically
summarized,
with
special
emphasis
MOFs
performance
optimization.
Finally,
remaining
challenges
future
perspectives
further
highlighted.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(36)
Published: June 17, 2024
Metal-organic
frameworks
(MOFs)
are
considered
as
a
promising
candidate
for
advancing
energy
storage
owing
to
their
intrinsic
multi-channel
architecture,
high
theoretical
capacity,
and
precise
adjustability.
However,
the
low
conductivity
poor
structural
stability
lead
unsatisfactory
rate
cycling
performance,
greatly
hindering
practical
application.
Herein,
we
propose
sea
urchin-like
Co-ZIF-L
superstructure
using
molecular
template
induce
self-assembly
followed
by
ion
exchange
method,
which
shows
improved
conductivity,
successive
channels,
stability.
The
can
gradually
etch
superstructure,
leading
reconstruction
of
with
three-dimensional
(3D)
cross-linked
ultrathin
porous
nanosheets.
Moreover,
control
Co
Ni
ratios
construct
effective
micro-electric
field
synergistically
enhance
rapid
transfer
electrons
electrolyte
ions,
improving
CoNi-ZIF-L.
Deleted Journal,
Journal Year:
2024,
Volume and Issue:
1(2), P. 181 - 206
Published: Aug. 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.
Small,
Journal Year:
2024,
Volume and Issue:
20(46)
Published: Aug. 13, 2024
Abstract
Acquiring
a
highly
efficient
electrocatalyst
capable
of
sustaining
prolonged
operation
under
high
current
density
is
paramount
importance
for
the
process
electrocatalytic
water
splitting.
Herein,
Fe‐doped
phosphide
(Fe‐Ni
5
P
4
)
derived
from
NiFc
metal−organic
framework
(NiFc‐MOF)
(Fc:
1,1′‐ferrocene
dicarboxylate)
shows
catalytic
activity
overall
splitting
(OWS).
Fe‐Ni
||Fe‐Ni
exhibits
low
voltage
1.72
V
OWS
at
0.5
A
cm
−2
and
permits
stable
2700
h
in
1.0
m
KOH.
Remarkably,
can
sustain
robust
an
extra‐large
1
1170
even
alkaline
seawater.
Theoretical
calculations
confirm
that
Fe
doping
simultaneously
reduces
reaction
barriers
coupling
desorption
(O
*
→OOH
,
OOH
→O
2
oxygen
evolution
(OER)
regulates
adsorption
strength
intermediates
(H
O
H
hydrogen
(HER),
enabling
to
possess
excellent
dual
functional
activity.
This
study
offers
valuable
reference
advancement
durable
electrocatalysts
through
regulation
coordination
frameworks,
with
significant
implications
industrial
applications
energy
conversion
technologies.
Inorganic Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 23, 2025
The
platelike
nickel-terephthalate-type
metal-organic
framework
nanoarrays
(Ni-BDC
NAs)
on
carbon
cloth
are
obtained
by
employing
agaric-like
Ni(OH)2
NAs
as
sacrificial
templates.
microenvironment
of
Ni-BDC
is
modulated
various
neighboring
functional
groups
(-NH2,
-NO2,
and
-Br)
the
carboxylate
ligand,
exerting
minimal
destructive
effects
structure
morphology
NAs.
electrochemical
oxygen
evolution
reaction
(OER)
Ni-BDC-NH2
NAs,
Ni-BDC-NO2
Ni-BDC-Br
exhibited
a
significant
enhancement
compared
to
that
alone,
evidenced
both
experimental
theoretical
assessments.
presence
exerts
positive
influence
electronic
coupling
between
Ni
O
atoms,
thereby
facilitating
thermodynamically
favorable
formation
*O
intermediates
sites
accelerating
kinetics
OER.
findings
presented
here
provide
valuable
insights
for
design
utilization
carboxylic
acid
molecules
with
group
effects,
enhancing
activity
OER
across
diverse
centers.
Advanced Energy Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 26, 2025
Abstract
Achieving
close
integration
and
strong
electronic
communication
between
molecular
catalysts
conductive
substrates
is
crucial
for
developing
the
stability
catalytic
activity
of
nanomaterials.
However,
constructing
heterostructure
catalyst
usually
need
complex
demanding
synthesis
processes.
Herein,
a
facile
universal
“molecular
nanojunction”
strategy
developed
to
prepare
with
high
by
improving
coplanarity
nanojunction
facilitating
efficient
electron
transfer.
The
density
function
theory
(DFT)
calculations
in
situ
characterization
indicate
that
reduces
excessive
*
OH
adsorption
accelerates
deprotonation
process,
thereby
promoting
oxygen
generation.
shows
better
evolution
reaction
(OER)
performance
than
most
reported
catalysts.
What's
more,
are
applied
alkaline
anion
exchange
membrane
(AEM)
electrolysis
cells,
exhibiting
excellent
performance.
Inorganic Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 27, 2025
Optimizing
the
adsorption
and
desorption
kinetics
of
oxygen
evolution
reaction
(OER)
is
crucial
for
efficient
overall
water
splitting.
Herein,
we
report
a
series
porous
ferrocene-based
metal–organic
framework
(MFc-MOF,
M
=
Co,
Ni,
Fe,
Mn)
nanoflowers
featuring
close
π–π
stacking
lattice
structure
as
model
catalysts,
explore
structure–activity
relationship.
Operando
electrochemical
impedance
spectroscopy
implies
that
synthesized
CoFc-MOF@NF
facilitates
intermediate
desorption.
It
exhibits
an
ultralow
overpotential
189
mV
at
10
mA
cm–2
maintains
stability
250
h.
In
splitting
device,
when
serves
anode,
it
yields
significantly
lower
cell
voltage
than
commercial
RuO2
shows
excellent
100
situ
Raman
reveals
surface
transforms
into
CoFeOOH,
OER-active
species,
while
preserving
MOF
framework.
The
inner
MOF's
ferrocene
units
act
electron-transfer
mediators.
These
findings
highlight
CoFc-MOF@NF's
potential
leading
catalyst
sustainable
hydrogen
production,
combining
high
catalytic
activity,
rapid
kinetics,
robust
stability.
This
work
presents
new
approach
to
balance
activity
in
MOF-based
OER
catalysts.
The
development
of
superior
non-noble-metal-based
oxygen
evolution
reaction
(OER)
electrocatalysts
is
essential
for
large-scale
hydrogen
production.
In
this
study,
an
integrated
porous
nanosheet
Ni2P-Ni5P4
heterostructures
were
designed
as
excellent
OER
electrocatalyst.
synthesized
demonstrated
notable
activity,
achieving
a
small
overpotential
260
mV
to
sustain
typical
10
mA
cm-2
current
density,
along
with
exceptional
durability
over
2000
CV
cycles.
distinctive
structure
enhances
the
exposure
active
sites
and
improves
mass
transport
efficiency.
Density
functional
theory
(DFT)
calculations
revealed
that
d-band
center
Ni
was
shifted
downward,
reducing
adsorption
strength
critical
oxygen-containing
intermediates
(*O,
*OH,
*OOH)
in
heterostructures.
This
modification
lowered
barrier
rate-determining
step
(RDS)
involving
transformation
from
*O
*OOH,
thereby
boosting
inherent
activity.
Additionally,
partial
electron
localization
combination
RDS
intermediate
observed
by
functions
(ELFs)
Ni2P-Ni5P4,
weakening
overall
interaction.
Further
crystal
orbital
Hamiltonian
population
confirmed
reduced
Ni-O
net
bonding
energy
0.69
eV
adsorbed
compared
Ni2P
(1.49
eV)
Ni5P4
(1.12
aligning
DFT
ELF
findings.
These
results
provide
promising
approach
valuable
guidance
design
cost-effective
suitable
storage
applications,
including
metal-air
cells
water
oxidation
processes.