Energy Material Advances,
Год журнала:
2023,
Номер
4
Опубликована: Янв. 1, 2023
Over
the
past
few
decades,
metal–organic
frameworks
(MOFs)
have
been
recognized
as
most
attractive
energy-involved
materials
due
to
their
unique
features,
including
ultrahigh
specific
surface
area,
superior
porous
structure,
and
excellent
customizability.
Nevertheless,
pristine
MOFs
suffer
from
low
electronic
conductivity
chemical
instability,
which
severely
hindered
large-scale
applications.
Recently,
MXene
with
abundant
terminations
high
metallic
suggested
a
valid
substrate
improve
stability
of
MOFs.
Importantly,
MXene/MOF
composites
enhanced
conductivity,
rich
chemistry,
hierarchical
structure
facilitate
rapid
electron/ion
transfer
deliver
better
electrochemical
properties
than
that
original
through
synergistic
effects.
Moreover,
can
be
designed
into
various
derivatives
desired
architecture
performance.
Therefore,
elaborate
synthesis
hybrids
for
devices
are
great
interest.
Herein,
we
provided
state-of-the-art
review
on
progress
in
terms
strategies
Furthermore,
put
forward
current
challenges
feasible
research
directions
future
development.
Nano-Micro Letters,
Год журнала:
2023,
Номер
15(1)
Опубликована: Фев. 16, 2023
The
electrocatalytic
water
splitting
technology
can
generate
high-purity
hydrogen
without
emitting
carbon
dioxide,
which
is
in
favor
of
relieving
environmental
pollution
and
energy
crisis
achieving
neutrality.
Electrocatalysts
effectively
reduce
the
reaction
barrier
increase
efficiency.
Facet
engineering
considered
as
a
promising
strategy
controlling
ratio
desired
crystal
planes
on
surface.
Owing
to
anisotropy,
with
different
orientations
usually
feature
facet-dependent
physical
chemical
properties,
leading
differences
adsorption
energies
oxygen
or
intermediates,
thus
exhibit
varied
activity
toward
evolution
(HER)
(OER).
In
this
review,
brief
introduction
basic
concepts,
fundamental
understanding
mechanisms
well
key
evaluating
parameters
for
both
HER
OER
are
provided.
formation
facets
comprehensively
overviewed
aiming
give
scientific
theory
guides
realize
dominant
planes.
Subsequently,
three
strategies
selective
capping
agent,
etching
coordination
modulation
tune
summarized.
Then,
we
present
an
overview
significant
contributions
facet-engineered
catalysts
HER,
OER,
overall
splitting.
particular,
highlight
that
density
functional
calculations
play
indispensable
role
unveiling
structure–activity
correlation
between
plane
catalytic
activity.
Finally,
remaining
challenges
provided
future
prospects
designing
advanced
electrocatalysts
discussed.
Advanced Materials,
Год журнала:
2023,
Номер
36(1)
Опубликована: Апрель 20, 2023
This
topical
review
focuses
on
the
distinct
role
of
carbon
support
coordination
environment
single-atom
catalysts
(SACs)
for
electrocatalysis.
The
article
begins
with
an
overview
atomic
configurations
in
SACs,
including
a
discussion
advanced
characterization
techniques
and
simulation
used
understanding
active
sites.
A
summary
key
electrocatalysis
applications
is
then
provided.
These
processes
are
oxygen
reduction
reaction
(ORR),
evolution
(OER),
hydrogen
(HER),
nitrogen
(NRR),
dioxide
(CO
Nano-Micro Letters,
Год журнала:
2023,
Номер
15(1)
Опубликована: Фев. 11, 2023
Rechargeable
zinc-air
batteries
(ZABs)
are
a
promising
energy
conversion
device,
which
rely
critically
on
electrocatalysts
to
accelerate
their
rate-determining
reactions
such
as
oxygen
reduction
(ORR)
and
evolution
(OER).
Herein,
we
fabricate
range
of
bifunctional
M-N-C
(metal-nitrogen-carbon)
catalysts
containing
M-Nx
coordination
sites
M/MxC
nanoparticles
(M
=
Co,
Fe,
Cu)
using
new
class
γ-cyclodextrin
(CD)
based
metal-organic
framework
the
precursor.
With
two
types
active
interacting
with
each
other
in
catalysts,
obtained
Fe@C-FeNC
Co@C-CoNC
display
superior
alkaline
ORR
activity
terms
low
half-wave
(E1/2)
potential
(~
0.917
0.906
V,
respectively),
higher
than
Cu@C-CuNC
0.829
V)
commercial
Pt/C
0.861
V).
As
electrocatalyst,
exhibits
best
performance,
showing
ORR/OER
overpotential
(ΔE)
~
0.732
is
much
lower
that
0.831
1.411
V),
well
most
robust
reported
date.
Synchrotron
X-ray
absorption
spectroscopy
density
functional
theory
simulations
reveal
strong
electronic
correlation
between
metallic
Co
atomic
Co-N4
catalyst
can
increase
d-electron
near
Fermi
level
thus
effectively
optimize
adsorption/desorption
intermediates
ORR/OER,
resulting
an
enhanced
electrocatalytic
performance.
The
Co@C-CoNC-based
rechargeable
ZAB
exhibited
maximum
power
162.80
mW
cm-2
at
270.30
mA
cm-2,
combination
+
RuO2
158.90
265.80
cm-2)
catalysts.
During
galvanostatic
discharge
10
delivered
almost
stable
voltage
1.2
V
for
140
h,
signifying
virtue
excellent
activity.
Chemical Reviews,
Год журнала:
2023,
Номер
123(22), С. 12507 - 12593
Опубликована: Ноя. 1, 2023
Electrocatalysis
underpins
the
renewable
electrochemical
conversions
for
sustainability,
which
further
replies
on
metallic
nanocrystals
as
vital
electrocatalysts.
Intermetallic
have
been
known
to
show
distinct
properties
compared
their
disordered
counterparts,
and
long
explored
functional
improvements.
Tremendous
progresses
made
in
past
few
years,
with
notable
trend
of
more
precise
engineering
down
an
atomic
level
investigation
transferring
into
practical
membrane
electrode
assembly
(MEA),
motivates
this
timely
review.
After
addressing
basic
thermodynamic
kinetic
fundamentals,
we
discuss
classic
latest
synthetic
strategies
that
enable
not
only
formation
intermetallic
phase
but
also
rational
control
other
catalysis-determinant
structural
parameters,
such
size
morphology.
We
demonstrate
emerging
nanomaterials
potentially
advancement
energy
electrocatalysis.
Then,
state-of-the-art
characterizations
representative
electrocatalysts
emphasis
oxygen
reduction
reaction
evaluated
a
MEA
setup.
summarize
review
by
laying
out
existing
challenges
offering
perspective
future
research
directions
toward
practicing
conversions.
Advanced Materials,
Год журнала:
2023,
Номер
35(24)
Опубликована: Янв. 10, 2023
Abstract
Materials
derived
from
metal–organic
frameworks
(MOFs)
have
demonstrated
exceptional
structural
variety
and
complexity
can
be
synthesized
using
low‐cost
scalable
methods.
Although
the
inherent
instability
low
electrical
conductivity
of
MOFs
are
largely
responsible
for
their
uptake
catalysis
energy
storage,
a
superior
alternative
is
MOF‐derived
metal‐based
derivatives
(MDs)
as
these
retain
complex
nanostructures
while
exhibiting
stability
conductivities
several
orders
magnitude
higher.
The
present
work
comprehensively
reviews
MDs
in
terms
synthesis
nanostructural
design,
including
oxides,
sulfides,
phosphides,
nitrides,
carbides,
transition
metals,
other
minor
species.
focal
point
approach
identification
rationalization
design
parameters
that
lead
to
generation
optimal
compositions,
structures,
nanostructures,
resultant
performance
parameters.
aim
this
provide
an
inclusive
platform
strategies
process
materials
specific
applications.
This
complemented
by
detailed
figures
both
summarize
processing
approaches
been
reported
indicate
potential
trajectories
development.
also
supported
comprehensive
up‐to‐date
tabular
coverage
studies.
Chemical Communications,
Год журнала:
2022,
Номер
58(82), С. 11488 - 11506
Опубликована: Янв. 1, 2022
Metal-organic
frameworks
(MOFs)
possess
excellent
advantages,
such
as
high
porosity,
large
specific
surface
area,
and
an
adjustable
structure,
showing
good
potential
for
applications
in
gas
adsorption
separation,
catalysis,
conductivity,
sensing,
magnetism,
etc.
However,
they
still
suffer
from
significant
limitations
terms
of
the
scale-up
synthesis
shaping,
hindering
realization
large-scale
commercial
applications.
Despite
some
attempts
having
been
devoted
to
addressing
this,
challenges
remain.
In
this
paper,
we
outline
advantages
drawbacks
existing
synthetic
routes
electrochemistry,
microwave,
ultrasonic
radiation,
green
solvent
reflux,
room
temperature
stirring,
steam-assisted
transformation,
mechanochemistry,
fluid
chemistry
production.
Then,
shaping
methods
MOFs
extrusion,
mechanical
compaction,
rolling
granulation,
spray
drying,
gel
technology,
embedded
phase
inversion,
3D
printing
other
preparation
membranes,
coatings
nanoparticles
are
discussed.
Finally,
perspectives
on
also
proposed.
This
work
helps
provide
in-depth
insight
into
production
process
boost
MOFs.
