Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Фев. 17, 2025
Ionic
covalent
organic
frameworks
(iCOFs)
are
promising
materials
for
energy
storage
devices
due
to
their
ionic
functional
groups,
which
facilitate
ion
transport,
and
highly
ordered
pores
of
frameworks,
provide
ideal
pathways
long-term
transport
under
harsh
electrochemical
conditions.
In
this
study,
we
attempted
the
first
time
synthesize
an
unprecedented
iCOF
using
a
heteroatom-embedded
mellitic
triimido
COF
framework
that
enables
practical
channels
on
Angstrom
scale.
This
was
subsequently
evaluated
as
anhydrous
proton-conducting
material.
The
heterocyclic
pyridine
group
2,5-diaminopyridine
(DAPy)
linker
plays
important
role,
not
only
AB
stacking-inducing
but
also
proton
acceptor
interacts
with
impregnated
H3PO4.
resulting
PA@MTI-DAPy-COF
exhibited
high
conductivity
3.68
×
10–2
S
cm–1
at
150oC
work
paves
way
constructing
efficient
by
leveraging
stacking
structure
skeletons.
Chemistry of Materials,
Год журнала:
2024,
Номер
36(9), С. 4437 - 4443
Опубликована: Апрель 17, 2024
Covalent
organic
frameworks
(COFs)
possess
high
surface
areas
and
tunable
pore
structures
are
promising
candidates
for
H2
physisorption
materials.
However,
their
interaction
with
molecules
is
too
weak
to
take
advantage
of
the
porosity
COFs.
Here,
we
report
first
example
metal-doped
enhanced
H2-physisorption
COF.
By
leveraging
superior
stability
TPB-DMTP-COF,
can
well
preserve
COF
after
lithium
(Li)
doping,
yielding
a
area
1350
m2/g.
Due
Li-doping-enhanced
isosteric
heat,
material's
total
uptake
increased
from
4.98
6.91
wt
%
at
77
K
80
bar.
The
Li-doping-induced
enhancement
effect
does
not
involve
chemisorption,
material
shows
excellent
cycling
performance:
10
cycles
30
bar
capacity
retention
99%.
Our
results
reveal
that
tuning
adsorption
heat
by
postmodification
strategy
exploit
potential
porous
materials
efficient
storage.
Chemical Communications,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Fabrication,
and
preparation
methods
of
COFs
along
with
a
complete
review
the
last
one
decade's
progress
in
field
energy
storage
conversion
devices,
notably
batteries,
capacitors
fuel
cells,
has
been
presented.
Advanced Materials,
Год журнала:
2024,
Номер
36(25)
Опубликована: Апрель 6, 2024
Mixed
conducting
materials
with
both
ionic
and
electronic
conductivities
have
gained
prominence
in
emerging
applications.
However,
exploring
material
on-demand
remains
challenging,
primarily
due
to
the
lack
of
correlating
macroscopic
conductivity
atom-scale
structure.
Here,
correlation
proton-electron
structure
graphdiyne
is
explored.
Precisely
adjusting
conjugated
diynes
oxygenic
functional
groups
yields
a
tunable
on
order
10
