Comparative Analysis of Proton Conductivity in Two Zn-Based MOFs Featuring Sulfate and Sulfonate Functional Groups
Inorganic Chemistry,
Год журнала:
2024,
Номер
63(8), С. 3870 - 3881
Опубликована: Фев. 15, 2024
Metal-organic
frameworks
(MOFs)
have
shown
promising
potential
as
proton-conducting
materials
due
to
their
tunable
structures
and
high
porosity.
In
this
study,
two
novel
MOFs
had
been
successfully
synthesized,
one
containing
sulfate
groups
(MOF-
Язык: Английский
Dual Free Radical Synergism for Enhancing Proton Conductivity in Photochromism iHOFs
Precision Chemistry,
Год журнала:
2025,
Номер
3(4), С. 221 - 230
Опубликована: Фев. 20, 2025
Stimuli-responsive
smart
materials,
as
an
emerging
material,
can
fulfill
reversible
transformation
of
chemical/physical
properties
under
external
stimuli
such
mechanical
stress,
light,
and
electricity,
which
has
the
highlights
rapid
response,
designable
structure,
function.
Two
ionic
hydrogen-bonded
organic
frameworks
(iHOFs
36-37)
were
synthesized
by
self-assembly
bis(benzene-o/p-sulfonic
acid)-naphthalenediimide
(o/p-H2BSNDI)
two
basic
ligands.
The
naphthalenediimide
(NDI)
was
introduced
into
material
to
equip
iHOFs
36-37
with
radical-driven
photochromic
behavior.
proton
conductivity
iHOF-37
demonstrated
a
maximum
6.50
×
10-4
S·cm-1
at
98%
RH
100
°C,
it
increased
9.10
10-3
due
dual
free
radical
synergism
following
UV
irradiation
(NDI
viologen),
represents
significant
14-fold
enhancement.
Furthermore,
incorporation
chitosan
(CS)
matrix
forms
composite
membranes.
5%-iHOF-37/CS
membrane
reached
up
5.70
10-2
90
8.08
after
irradiation.
This
work
reveals
radicals
generated
NDI
viologen
derivatives,
whose
synergistic
action
plays
role
in
enhancing
membranes,
rendering
rational
design
stimuli-responsive
materials
feasible.
Язык: Английский
Photochromic Ln-Phosphonates Assembled by an Imidazole Derivative: Construction, Crystal Structures, and Light-Enhanced Proton Conductivity
Crystal Growth & Design,
Год журнала:
2024,
Номер
24(5), С. 2202 - 2209
Опубликована: Фев. 23, 2024
A
series
of
Ln(III)-based
coordination
compounds
with
one-dimensional
chains
have
been
synthesized
by
assembling
organic
phosphonate
ligands
hydroxyethylidene
diphosphonate
(HEDP)
and
the
imidazole
derivative
2,4,5-tris(4-pyridyl)-imidazole
(TPI)
lanthanide
ions
under
solvothermal
conditions.
Based
on
electron-donor/-acceptor
property,
isomorphic
exhibit
radical-actuated
photochromic
behavior
induced
electron
transfer
process
light
illumination
at
room
temperature.
In
addition,
taking
advantage
abundant
hydrogen-bond
interactions
in
structures,
display
significant
proton
conduction
temperature
range
303–343
K
100%
relative
humidity.
Importantly,
conductivities
all
increase
about
compared
to
initial
state
after
irradiation.
As
a
result,
this
work
shows
new
hybrid
complexes
photomodulated
characteristics,
providing
method
for
design
intelligent
multifunctional
materials
diverse
photochromism
tunable
conduction.
Язык: Английский
Enhanced Proton Conduction in Metal–Organic Frameworks through Single-Crystal to Single-Crystal Transformation
Inorganic Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 13, 2025
In
this
work,
an
anionic
framework
Co-MOF
(1)
was
elaborately
constructed,
which
underwent
single-crystal-to-single-crystal
(SC-SC)
transformation
to
produce
1-Cr
and
1-Fe
after
immersion
in
a
CrCl3
or
FeCl3
solution.
Despite
the
similar
crystal
structure,
significantly
enhanced
proton
conductivities
of
far
exceed
that
1
at
all
humidity
temperature
conditions.
Even
30
°C
98%
RH,
conductivity
can
reach
up
high
values
1.49
×
10–2
6.39
10–3
S
cm–1,
respectively,
surpassing
by
over
5000
times
under
identical
The
partial
alteration
proton-conducting
carriers
from
metal-water
cluster
[Co(H2O)6]·6H2O]
metal-hydroxyl-water
clusters
[Cr(OH)4(H2O)2]·6H2O]
(1-Cr)
[Fe(OH)4(H2O)2]·6H2O]
(1-Fe)
be
attributed
for
above-mentioned
performance.
introduction
hydroxyl
SC-SC
establish
interconnected
conduction
pathways
within
channels,
greatly
facilitate
conduction,
affording
much
lower
activation
energies
(0.12
eV
1-Cr,
0.18
1-Fe,
0.28
1).
This
research
demonstrated
not
only
achieved
improved
but
also
contributed
deeper
understanding
structure–property
relationships,
providing
new
insights
into
design
advanced
materials
with
conductivity.
Язык: Английский
Two Proton Conductive Coordination Polymers Constructed by an Unprecedented Structural Transformation of a Phosphine-Based Tricarboxylate Ligand
Haotian Cui,
Jia-Yi Zhou,
Jinfen Chen
и другие.
Crystal Growth & Design,
Год журнала:
2023,
Номер
23(7), С. 4903 - 4911
Опубликована: Май 31, 2023
The
phosphine-based
tricarboxylate
2-(3,3′-dioxo-1λ5-1,1′-(3H,3′H)-spirobi[2,1-benzoxaphosphol]-1-yl)benzoic
acid
(L)
has
been
intensely
studied
due
to
its
unique
configuration
and
readily
oxidizable
phosphorus
center.
However,
the
coordination
of
L
with
metals
have
largely
ignored
in
field
polymers
(CPs).
Herein,
we
report
two
CPs,
[Zn3(L1)2(dib)2(H2O)]·9H2O
(1)
[Cu3(L2)2(dib)2]·3H2O
(2)
(H3L1
=
tris(2-carboxyphenyl)phosphine
oxide,
H3L2
2,2′-phosphinico-dibenzoic
acid,
dib
1,4-di(1H-imidazol-1-yl)butane),
synthesized
based
on
L.
Strikingly,
despite
initial
use
L,
structures
1
2
reveal
that
undergoes
unprecedented
situ
structural
changes
after
metal
ion.
In
1,
is
transformed
phosphine
oxide
derivative
L1,
while
2,
it
phosphinic
L2.
With
aid
flexible
ligand
dib,
one-dimensional
(1D)
chain
structure
three-dimensional
(3D)
supramolecular
were
constructed.
For
especially
there
are
abundant
hydrogen
bonds
between
framework
lattice
water
molecules,
which
conducive
formation
excellent
hydrophilic
channels
transport
protons.
Electrochemical
experimental
results
show
exhibit
high
proton
conductivities
(σ)
more
than
10–4
S
cm–1
over
a
wide
temperature
range
303–353
K
low
activation
energies
(Ea)
at
98%
relative
humidity.
Compared
σ
value
(3.12
×
10–5
cm–1),
best
values
improved
by
28
times
6
times,
respectively,
Ea
also
reduced
from
0.39
0.13
eV
for
0.12
2.
This
first
proton-conducting
carboxylate
ligand,
involving
transitions
ligand.
Язык: Английский
A Comparative Study of Nickel and Cadmium Coordination Polymers: Framework Topology and Proton Conductivity
Jhen‐Yi Lee,
His-Yuan Hsieh,
Yao-Ming Tang
и другие.
Journal of Solid State Chemistry,
Год журнала:
2024,
Номер
337, С. 124791 - 124791
Опубликована: Июнь 1, 2024
Язык: Английский
Proton-conduction under mild humid conditions in [NH4][M(HCOO)3] (M=Mn2+, Co2+) frameworks
Journal of Solid State Chemistry,
Год журнала:
2024,
Номер
338, С. 124911 - 124911
Опубликована: Июль 20, 2024
Язык: Английский
Proton-Conduction Under Mild Humid Conditions in [Nh4][M(Hcoo)3] (M=Mn2+, Co2+) Frameworks
Опубликована: Янв. 1, 2024
We
report
the
room
temperature
proton
conduction
property
for
ammonium-based
formate
frameworks
[NH4][M(HCOO)3]
(M=Mn2+,
Co2+)
well
known
their
ferroelectric
and
magnetic
properties
at
low
temperature.
The
synthesis
was
afforded
through
mechanosynthesis
measurements
were
performed
in
ambient
as
humidity
controlled
conditions.
is
activated
by
reaching
relative
(RH)
limit
of
50%
both
compounds.
At
303
K
maximal
conductivity
2.9
±
0.3
x
10-4
S/cm
observed
[NH4][Mn(HCOO)3]
RH=70%.
lack
behavior
isostructural
compound
Cs[Mn(HCOO)3]
corroborates
role
played
NH4+
units
vehicle.
Язык: Английский