Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(12)
Опубликована: Янв. 24, 2024
Abstract
Cost‐effective,
non‐fluorinated
polymer
proton
exchange
membranes
(PEMs)
are
highly
desirable
in
emerging
hydrogen
fuel
cells
(FCs)
technology;
however,
their
low
conductivities
and
poor
chemical
dimension
stabilities
hinder
further
development
as
alternatives
to
commercial
Nafion®.
Here,
we
report
the
inorganic‐organic
hybridization
strategy
by
facilely
complexing
polymers,
polyvinyl
butyral
(PVB),
with
inorganic
molecular
nanoparticles,
H
3
PW
12
O
40
(PW)
via
supramolecular
interaction.
The
strong
affinity
among
them
endows
obtained
nanocomposites
amphiphilicity
lead
phase
separation
for
bi‐continuous
structures
both
inter‐connected
transportation
channels
robust
scaffold,
enabling
high
conductivities,
mechanical/dimension
stability
barrier
performance,
2
/O
FCs
equipped
composite
PEM
show
promising
power
densities
long‐term
stability.
Interestingly,
hybrid
can
be
fabricated
continuously
large
scale
at
challenging
~10
μm
thickness
typical
tape
casting
technique
originated
from
facile
hybrids’
excellent
mechanical
properties.
This
work
not
only
provides
potential
material
systems
PEMs,
but
also
raises
interest
research
on
composites
PEMs.
Journal of the American Chemical Society,
Год журнала:
2022,
Номер
144(26), С. 11767 - 11777
Опубликована: Июнь 22, 2022
Constructing
hierarchical
three-dimensional
(3D)
mesostructures
with
unique
pore
structure,
controllable
morphology,
highly
accessible
surface
area,
and
appealing
functionality
remains
a
great
challenge
in
materials
science.
Here,
we
report
monomicelle
interface
confined
assembly
approach
to
fabricate
an
unprecedented
type
of
3D
mesoporous
N-doped
carbon
superstructure
for
the
first
time.
In
this
large
hollow
locates
center
(∼300
nm
diameter),
ultrathin
monolayer
spherical
mesopores
(∼22
nm)
uniformly
distributes
on
shells.
Meanwhile,
small
hole
(4.0-4.5
is
also
created
interior
each
mesopore,
enabling
be
totally
interconnected.
Vitally,
such
interconnected
porous
supraparticles
exhibit
ultrahigh
area
(685
m2
g-1)
good
underwater
aerophilicity
due
abundant
mesopores.
Additionally,
number
(70-150)
mesopores,
particle
size
(22
42
nm),
shell
thickness
(4.0-26
can
all
accurately
manipulated.
Besides
other
configurations
involving
nanovesicles
2D
nanosheets
were
obtained.
Finally,
manifest
as
advanced
electrocatalytic
material
half-wave
potential
0.82
V
(vs
RHE),
equivalent
value
commercial
Pt/C
electrode,
notable
durability
oxygen
reduction
reaction
(ORR).
Advanced Materials,
Год журнала:
2024,
Номер
36(16)
Опубликована: Янв. 2, 2024
Abstract
Ordered
mesoporous
crystalline
frameworks
(MCFs),
which
possess
both
functional
and
well‐defined
porosity,
receive
considerable
attention
because
of
their
unique
properties
including
high
surface
areas,
large
pore
sizes,
tailored
porous
structures,
compositions.
Construction
novel
architectures
that
allows
for
rich
accessible
active
sites
efficient
mass
transfer
is
envisaged
to
offer
ample
opportunities
potential
energy‐related
applications.
In
this
review,
the
rational
synthesis,
energy
applications
MCFs
are
main
focus.
After
summarizing
synthetic
approaches,
an
emphasis
placed
on
delicate
control
crystallites,
mesophases,
nano‐architectures
by
concluding
basic
principles
showing
representative
examples.
Afterward,
currently
fabricated
components
such
as
metals,
metal
oxides,
sulfides,
metal–organic
described
in
sequence.
Further,
typical
rechargeable
batteries,
supercapacitors,
electrocatalysis,
photocatalysis
highlighted.
This
review
ends
with
possible
development
challenges
well
a
future
prospect
high‐efficiency
applications,
underscores
pathway
developing
advanced
materials.
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(12)
Опубликована: Янв. 24, 2024
Abstract
Cost‐effective,
non‐fluorinated
polymer
proton
exchange
membranes
(PEMs)
are
highly
desirable
in
emerging
hydrogen
fuel
cells
(FCs)
technology;
however,
their
low
conductivities
and
poor
chemical
dimension
stabilities
hinder
further
development
as
alternatives
to
commercial
Nafion®.
Here,
we
report
the
inorganic‐organic
hybridization
strategy
by
facilely
complexing
polymers,
polyvinyl
butyral
(PVB),
with
inorganic
molecular
nanoparticles,
H
3
PW
12
O
40
(PW)
via
supramolecular
interaction.
The
strong
affinity
among
them
endows
obtained
nanocomposites
amphiphilicity
lead
phase
separation
for
bi‐continuous
structures
both
inter‐connected
transportation
channels
robust
scaffold,
enabling
high
conductivities,
mechanical/dimension
stability
barrier
performance,
2
/O
FCs
equipped
composite
PEM
show
promising
power
densities
long‐term
stability.
Interestingly,
hybrid
can
be
fabricated
continuously
large
scale
at
challenging
~10
μm
thickness
typical
tape
casting
technique
originated
from
facile
hybrids’
excellent
mechanical
properties.
This
work
not
only
provides
potential
material
systems
PEMs,
but
also
raises
interest
research
on
composites
PEMs.
