Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 16, 2024
Abstract
Hydrogen‐bonded
organic
frameworks
(HOFs)
are
a
type
of
crystalline
porous
materials
self‐assembled
from
or
metal–organic
building
blocks
via
intermolecular
hydrogen
bonding,
which
have
received
increasing
attention
due
to
their
reversible
and
flexible
bonding
properties.
Currently,
it
remains
challenge
construct
HOFs
based
on
complex
cages
as
molecular
blocks.
Herein,
3D
HOF
(
PgC‐HOF
)
featuring
honeycomb‐shaped
channels
is
crafted
utilizing
sizable
waterwheel‐like
PgC‐noria
molecule
cage.
The
pivotal
role
multipoint
interactions
in
upholding
structural
integrity
stability
underscored
by
the
possession
36
phenolic
hydroxyl
groups
.
Interestingly,
introduction
calcium
ions
into
reaction
system
results
formation
framework
PgC‐MOF
),
with
channel
dimensions
6.8
9.1
Å.
Furthermore,
I
2
sorption/release
experiments
conducted
,
achieving
an
increase
optimal
adsorption
amount
1.45
2.19
g
−1
transition
irreversible
adsorbent
adsorbent.
Sustainable Energy & Fuels,
Journal Year:
2024,
Volume and Issue:
8(18), P. 4355 - 4364
Published: Jan. 1, 2024
A
Co-MOF
assembled
hybrid
supercapacitor
exhibits
outstanding
specific
energy
and
power
(60.07
W
h
kg
−1
850
)
with
80.01%
diffusive
76.72%
capacitive
contribution
at
3
100
mV
s
,
respectively.
Selective
ligand
removal
(SeLiRe)
is
a
powerful
strategy
for
constructing
novel
pore-type
and
ligand-defective
structures
in
metal–organic
frameworks
(MOFs),
but
few
studies
have
focused
on
the
effect
of
secondary
ligands
with
different
functional
groups
this
process.
We
synthesized
versions
zeolitic
imidazolate
framework-8
six
comprehensively
investigated
their
after
SeLiRe
treatment.
Their
pore
volume,
size,
distribution
are
closely
related
to
respective
organic
ligands.
NH2-functionalized
tend
form
larger
domains
weaker
Zn–Nβ
covalent
bonds,
which
facilitate
process
construction
cavities.
Among
ligands,
5-bromo-1H-benzo[d]imidazol-2-amine
exhibits
composite
structure
hierarchical
micro-
mesopores,
achieving
highest
methylene
blue
adsorption
capacity
28.1
mg
g–1.
Compared
traditional
sodalite-type
ZIFs,
results
53-fold
increase
water
pollutant
adsorption.
This
work
highlights
crucial
role
provides
valuable
insights
designing
other
porous
hybrid
structures.
