Small,
Journal Year:
2023,
Volume and Issue:
19(41)
Published: June 14, 2023
Solid-state
proton
conductors
based
on
the
use
of
metal-organic
framework
(MOF)
materials
as
exchange
membranes
are
being
investigated
alternatives
to
current
state
art.
This
study
reports
a
new
family
MIL-101
and
protic
ionic
liquid
polymers
(PILPs)
containing
different
anions.
By
first
installing
(PIL)
monomers
inside
hierarchical
pores
highly
stable
MOF,
MIL-101,
then
carrying
out
polymerization
in
situ,
series
PILP@MIL-101
composites
was
synthesized.
The
resulting
not
only
maintain
nanoporous
cavities
water
stability
but
intertwined
PILPs
provide
number
opportunities
for
much-improved
transport
compared
MIL-101.
composite
with
HSO4-
anions
shows
superprotonic
conductivity
(6.3
×
10-2
S
cm-1
)
at
85
°C
98%
relative
humidity.
mechanism
conduction
is
proposed.
In
addition,
structures
PIL
were
determined
by
single
crystal
X-ray
analysis,
which
reveals
many
strong
hydrogen
bonding
interactions
O/NH···O
distances
below
2.6
Å.
Nano-Micro Letters,
Journal Year:
2024,
Volume and Issue:
17(1)
Published: Dec. 11, 2024
Proton-conducting
materials
have
attracted
considerable
interest
because
of
their
extensive
application
in
energy
storage
and
conversion
devices.
Among
them,
metal-organic
frameworks
(MOFs)
present
tremendous
development
potential
possibilities
for
constructing
novel
advanced
proton
conductors
due
to
special
advantages
crystallinity,
designability,
porosity.
In
particular,
several
design
strategies
the
structure
MOFs
opened
new
doors
advancement
MOF
conductors,
such
as
charged
network
construction,
ligand
functionalization,
metal-center
manipulation,
defective
engineering,
guest
molecule
incorporation,
pore-space
manipulation.
With
implementation
these
strategies,
proton-conducting
developed
significantly
profoundly
within
last
decade.
Therefore,
this
review,
we
critically
discuss
analyze
fundamental
principles,
methods
targeted
at
improving
conductivity
through
representative
examples.
Besides,
structural
features,
conduction
mechanism
behavior
are
discussed
thoroughly
meticulously.
Future
endeavors
also
proposed
address
challenges
practical
research.
We
sincerely
expect
that
review
will
bring
guidance
inspiration
further
motivate
research
enthusiasm
materials.
Materials & Design,
Journal Year:
2023,
Volume and Issue:
233, P. 112252 - 112252
Published: Aug. 18, 2023
Various
wounds
caused
by
burns,
trauma,
surgery,
and
genetic
irregularities,
including
acute
chronic
wounds,
pose
a
huge
burden
on
global
healthcare.
Many
therapeutic
strategies,
such
as
nanomedicine
regenerative
medicine,
have
been
applied
to
wound
repair
skin
regeneration.
As
promising
exciting
nanomaterial,
metal-organic
frameworks
(MOFs)
encompass
many
desirable
properties,
crystalline
porous
structure,
tunable
size,
good
mechanical
stability,
large
specific
surface
area,
exceptional
chemical
stability.
Most
importantly,
the
performance
of
MOFs
can
be
modulated
changing
synthesis
steps
conditions.
release
metal
ions
modulate
cellular
behaviors
kill
various
microorganisms,
which
meets
this
dual
agent
strategy
for
healing
Additionally,
act
carriers
delivering
bioactive
agents
in
desired
manner.
Recently,
an
increasing
number
researchers
conducted
studies
applying
Based
this,
we
perform
study
report
current
status
further
perspective
MOFs-based
strategy.
Furthermore,
molecular
process
fabrication
were
also
discussed.
Chemistry of Materials,
Journal Year:
2023,
Volume and Issue:
35(8), P. 3172 - 3180
Published: April 3, 2023
The
development
of
high-performance
proton
exchange
membrane
fuel
cells
(PEMFCs)
is
crucial
yet
challenging.
Enrichment
transport
pathways
by
doping
ionic
hydrogen-bonded
organic
frameworks
(iHOFs)
in
Nafion
matrix
important
for
further
PEMFCs.
In
this
work,
an
iHOF
material
(iHOF-9)
based
on
arylphosphonate
anions
and
guanidinium
cations
with
the
three-dimensional
(3D)
network
was
synthesized,
which
exhibits
ultrahigh
conductivity
4.38
×
10–2
S·cm–1
at
90
°C
98%
RH.
addition,
mixing
into
matrix,
we
have
fabricated
hybrid
membranes,
maximum
value
can
achieve
6.61
9%-iHOF-9/Nafion
iHOF-9/Nafion
membranes
were
used
to
fabricate
application
H2/O2
cells.
power
density
reached
1092.07
mW·cm–2
after
stabilization
10
h
80
100%
RH,
a
33.99%
improvement
compared
recast
membrane.
This
work
doped
as
emerging
material,
injecting
new
possibilities
energy
sources.
Journal of Materials Chemistry A,
Journal Year:
2023,
Volume and Issue:
11(26), P. 13965 - 13970
Published: Jan. 1, 2023
Two-dimensional
(2D)
COFs
with
a
high
density
of
oxygen
atoms
along
the
pore
walls
as
host
loaded
H
3
PO
4
facilitated
formation
hydrogen-bond
networks
pores,
further
facilitating
proton
transport.
Small,
Journal Year:
2023,
Volume and Issue:
19(35)
Published: April 25, 2023
Abstract
2D
materials
that
can
provide
long‐range
ordered
channels
in
thin‐film
form
are
highly
desirable
for
proton
exchange
membranes
(PEMs).
Covalent
organic
framework
nanosheets
(CONs)
promising
possessing
intrinsic
porosity
and
high
processability.
However,
the
potential
of
CONs
PEMs
is
limited
by
loose
sheet
stacking
interfacial
grain
boundary,
which
lead
to
unsatisfied
mechanical
property
discontinuous
conduction
pathway.
Herein,
chitosan
(CS),
a
natural
polymer
with
rich
NH
2
groups,
designed
as
linker
dual‐sulfonate
(CON‐2(SO
3
H))
obtain
CON‐2(SO
H)‐based
membrane.
Ultrathin
H)
crystallinity
large
lateral
size
synthesized
at
water–octanoic
acid
interface.
The
flexibility
CS
chains
their
electrostatic
interactions
SO
H
groups
enable
effective
connection
H),
thus
endowing
membrane
dense
structure
exceptional
stability.
stacked
constructs
regular
hydrophilic
nanochannels
containing
high‐density
between
acid–base
pairs
transfer
channels.
Consequently,
H)@CS
simultaneously
achieves
superior
conductivity
353
mS
cm
−1
(under
80
°C
hydrated
condition)
tensile
strength
95
MPa.
This
work
highlights
advantages
proton‐conducting
porous
advanced
paves
way
fabricating
robust
CON‐based
various
applications.
