ACS Applied Materials & Interfaces,
Год журнала:
2023,
Номер
15(12), С. 15616 - 15624
Опубликована: Март 16, 2023
Proton
exchange
membrane
water
electrolysis
(PEMWE)
generates
oxygen
and
hydrogen
at
the
anode
cathode,
respectively,
by
conducting
protons
generated
to
cathode
through
a
proton
(PEM).
The
performance
of
PEMWE
can
be
improved
with
faster
catalytic
reactions
each
electrode;
thus,
development
PEM
excellent
ionic
conductivity
physicochemical
stability
is
essential.
Nafion,
type
perfluoro-sulfonic
acid
polymer,
most
widely
used
material.
However,
despite
its
chemical
stability,
it
exhibits
high
permeability
due
structural
characteristics.
Quantum
dots
(QDs)
have
hydrophilic
functional
group
that
act
as
an
ion
conductor
are
extremely
compatible
cluster
Nafion
their
characteristic
nanosized
structure.
In
this
study,
various
compositions
N-doped
carbon
quantum
(CQDs)
containing
groups
were
coated
on
Nafion-212
membrane.
resulting
series
CQD-coated
membranes
exhibited
improvements
in
morphology
well
reductions
permeability.
particular,
0.75
wt
%
CQD
(CQD-cNafion-0.75)
mechanical
properties
higher
oxidation
compared
Nafion-212.
It
also
displayed
240.3
mS
cm-1
80
°C
reduced
(about
10%
reduction)
addition,
single-cell
using
CQD-cNafion-0.75
was
found
approximately
1.2
times
than
Nano-Micro Letters,
Год журнала:
2024,
Номер
17(1)
Опубликована: Дек. 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,
Год журнала:
2023,
Номер
233, С. 112252 - 112252
Опубликована: Авг. 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.
Journal of Materials Chemistry A,
Год журнала:
2023,
Номер
11(26), С. 13965 - 13970
Опубликована: Янв. 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.
Chemistry of Materials,
Год журнала:
2023,
Номер
35(8), С. 3172 - 3180
Опубликована: Апрель 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.
