Inorganic Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 5, 2025
Hexaazatrinaphthylene
(HATN),
a
polyheterocyclic
aromatic
ligand,
is
ideal
for
constructing
discrete
functional
coordination
complexes.
However,
its
conjugated
rigidity
has
resulted
in
great
challenge
forming
extended
structures
with
only
one
3D
metal–organic
framework
(MOF)
reported
24
years
ago.
Herein,
by
regulation
of
the
dihedral
angle
between
two
chelating
HATN
planes,
three
new
porous
HATN-based
MOFs
(SNNU-231–233)
mononuclear
metal
centers
were
successfully
synthesized.
SNNU-231,
unique
2-fold
interpenetrated
MOF,
was
first
assembled,
but
interpenetration
leads
to
lost
pores.
By
modulating
configurations,
pore
channels
opened
SNNU-232
and
SNNU-233,
leading
topology
breaking
SNNU-233.
All
exhibit
exceptional
thermal
stability
above
500
°C,
surpassing
most
MOF
materials.
At
same
time,
SNNU-233
can
keep
structure
water
from
pH
=
1
14.
Specifically,
had
outstanding
CO2
uptake
capacity
separation
ability
CO2/N2
due
strong
affinity
molecules
specific
pores
abundant
hydrogen
bonds
π-force
adsorption
sites.
also
showed
significant
potential
simulated
low
calorific
value
coal
gases
five
components
H2
(5.1%),
CO
(9.1%),
CH4
(5.0%),
N2
(66.3%),
(14.3%).
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(23)
Published: Feb. 9, 2024
Abstract
Fast‐charging
technology
plays
a
pivotal
role
in
propelling
the
commercialization
of
zinc‐air
batteries
(ZABs).
While
lifetime
ZABs
under
fast‐charging
is
severely
shortened
by
abundant
O
2
bubbles
and
deactivation
cathode
catalysts.
Herein,
defective
Mo─Co
/
N─C
electrocatalyst
presented
with
Co
nanoparticles
molybdenum‐oxo
subnano
clusters
pyrolyzing
Lindqvist
polyoxometalate
incorporated
ZIF‐67
precursor.
The
crystalline
defects
are
exacerbated
doping
into
pores
ZIF‐67.
Furthermore,
accessibility
pore
increased
Mo‐leaching
during
pre‐activation.
These
accessible
effectively
prevent
exfoliation
catalysts
from
support
attack
bubbles,
improve
electrolyte
penetration.
Besides,
offer
numerous
active
sites
for
electrocatalytic
reactions,
resulting
an
stable
catalyst.
Hence,
such
achieves
long
1538
h
at
5
mA
cm
−2
,
641
fast
charge
50
homemade
ZAB.
unique
components
operational
mechanisms
propel
scientists
to
portray
splendid
blueprints
durable
potential
industrial
applications.
Inorganic Chemistry,
Journal Year:
2024,
Volume and Issue:
63(30), P. 14062 - 14073
Published: July 17, 2024
The
development
of
efficient
and
Earth-abundant
electrocatalysts
for
the
oxygen
evolution
reaction
(OER)
is
an
urgent
requirement
in
field
electrochemical
water
splitting.
electrocatalytic
performance
OER
can
be
greatly
enhanced
by
synergistic
combination
zeolite
imidazolate
frameworks
(ZIFs)
transition-metal
phosphides,
both
which
individually
exhibit
promising
capabilities
this
regard.
In
study,
a
novel
amorphous
NiCoP
deposited
on
ZIF-67
sheets
supported
Ni
foam
(labeled
as
NiCoP/ZIF-67/NF)
material
was
successfully
synthesized
using
simple,
secure,
time-efficient
two-step
strategy.
experimental
results
demonstrate
that
NiCoP/ZIF-67/NF
possesses
large
active
surface
area
with
abundant
sites.
Also,
effect
interaction
between
ZIF-67,
well
Co
within
NiCoP,
effectively
enhance
its
under
alkaline
conditions.
Consequently,
exhibits
outstanding
catalytic
activity
overpotential
(η)
175
mV
at
current
density
10
mA
cm
