Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 23, 2024
Molecular
frameworks
have
recently
shown
a
great
potential
in
atmospheric
water
harvesting,
which
the
release
at
low
temperatures
is
challenging.
Anion-organic
based
on
anion-coordination
chemistry
are
presented
herein
to
meet
this
challenge.
These
prepared
as
tubular
single
crystals
pure
from
situ
protonation
and
crystallization
of
pyridine-terminated
triphenylamine
derivatives
with
hydrochloric
or
hydrobromic
acid.
They
possess
2D
honeycombed
porous
structure
carry
halogen
anions
confined
within
1D
hexagonal
nanochannels
modular
size
1.7-2.3
nm.
exhibit
high
uptake
up
0.87
g
Chemical Science,
Journal Year:
2024,
Volume and Issue:
15(26), P. 9874 - 9892
Published: Jan. 1, 2024
In
this
perspective,
we
have
discussed
the
recent
progress
of
flexible
HOFs,
with
particular
focus
on
various
dynamic
behaviors
and
their
applications
in
different
fields.
Finally,
current
challenges
opportunities
field
are
discussed.
Advanced Science,
Journal Year:
2024,
Volume and Issue:
11(22)
Published: April 22, 2024
Abstract
Hydrogen‐bonded
organic
frameworks
(HOFs)
are
emerging
porous
materials
that
show
high
structural
flexibility,
mild
synthetic
conditions,
good
solution
processability,
easy
healing
and
regeneration,
recyclability.
Although
these
properties
give
them
many
potential
multifunctional
applications,
their
unstable
due
to
the
presence
of
only
weak
reversible
hydrogen
bonds.
In
this
work,
development
history
synthesis
methods
HOFs
reviewed,
categorize
design
concepts
strategies
improve
stability.
More
importantly,
significant
latest
HOF‐related
research
for
addressing
energy
environmental
issues,
work
discusses
advances
in
storage
conversion,
substance
generation
isolation,
detection
degradation
transformation,
biological
applications.
Furthermore,
a
discussion
coupling
orientation
HOF
cross‐cutting
fields
environment
is
presented
first
time.
Finally,
current
challenges,
opportunities,
advance
applications
discussed.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(41)
Published: Sept. 2, 2024
Abstract
As
a
typical
tunnel
oxide,
Na
0.44
MnO
2
features
excellent
electrochemical
performance
and
outstanding
structural
stability,
making
it
promising
cathode
for
sodium‐ion
batteries
(SIBs).
However,
suffers
from
undesirable
challenges
such
as
surface
residual
alkali,
multiple
voltage
plateaus,
low
initial
charge
specific
capacity.
Herein,
an
internal
external
synergistic
modulation
strategy
is
adopted
by
replacing
part
of
the
Mn
with
Ti
to
optimize
bulk
phase
construct
Ti‐containing
epitaxial
stabilization
layer,
resulting
in
reduced
+
transport
kinetics
improved
water/air
stability.
Specifically,
0.85
0.15
O
using
water‐soluble
carboxymethyl
cellulose
binder
can
realize
capacity
retention
rate
94.30%
after
1,000
cycles
at
2C,
stability
further
verified
kilogram
large‐up
applications.
In
addition,
taking
advantage
rich
content
Prussian
blue
analog
(PBA),
PBA‐Na
1‐x
x
composites
are
designed
compensate
insufficient
oxide
matched
hard
carbon
achieve
preparation
coin
full
cell
18650
cylindrical
battery
satisfactory
performance.
This
work
enables
application
oxides
SIBs
first
time
promotes
commercialization
SIBs.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 14, 2025
Abstract
Lithium‐ion
batteries
(LIBs),
known
for
their
high
energy
density
and
long
cycle
life,
have
become
indispensable
in
everyday
applications.
Unfortunately,
the
increasing
demand
LIBs
raises
concerns
about
sustainability
of
lithium
resources.
Non‐lithium
metal‐ion
therefore
garnered
significant
attention
due
to
abundant
resources
potential
cost
advantages.
Yet,
widespread
adoption
is
hindered
by
limited
availability
high‐performance
cathode
materials.
Organic
electrode
materials
(OEMs)
emerged
as
promising
candidates,
owing
structural
diversity
tunability,
allowing
them
accommodate
large
cations.
Despite
potential,
most
OEMs
suffer
from
unsatisfactory
cyclability,
poor
rate
performance,
low
density.
This
review
summarizes
recent
advancements
improving
electrochemical
performance
OEMs,
focusing
on
molecular
engineering
approaches
mitigate
dissolution,
enhance
conductivity
The
charge
storage
mechanism
current
challenges
associated
with
are
first
discussed.
Various
strategies
designed
address
these
then
explored,
including
linkage
improve
stability
electronic
Finally,
insights
provided
future
development
next‐generation
battery
technologies
beyond
LIBs.
Advanced Energy Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 12, 2025
Abstract
Anion
acceptors
(AAs)
enable
to
dissolve
metal
fluoride
salts
and
achieve
reversible
fluorination
defluorination
in
ion
batteries
(FIBs).
However,
most
reported
strategies
only
focus
on
boron‐
alcohol‐based
AAs
with
strong
Lewis
acidity
excessive
hydrogen
bond
(HB)
strength,
which
often
leads
the
uncontrollable
mass
loss
of
active
materials
inferior
reduction
stability
electrolyte.
Although
amino
imine
groups
possess
preferable
anti‐reductive
property,
their
HB
strengths
are
apparently
too
weak
dissociate
salts.
Here
a
novel
strategy
is
proposed
for
molecular
structure
design
toward
imino
by
introducing
double
bonds
pyridine‐N
into
five‐membered‐ring
pyrrolidine.
Therein
conjugation
effect,
inductive
α
effect
synergistically
utilized
enhance
group.
Theoretical
calculations
experiments
prove
that
1,2,4‐triazole
AA
retains
maximum
extent
while
increasing
strength
Based
this
AA,
electrolyte
achieves
an
unprecedented
wide
electrochemical
window
(5.5
V),
enabling
highly
cycling
CuF
2
||Pb
full
cells
(>300
cycles)
Cu
+
‐mediated
two‐step
redox
mechanism,
PbF
‐Pb||PbF
‐Pb
symmetric
(1600
h)
low
overpotential,
asymmetric
high
coulombic
efficiency.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(26)
Published: May 8, 2024
Abstract
A
series
of
sulfur‐bridged
2,2′‐viologens,
2,2′‐thienoviologens
(2,2′‐SV
2+
)
with
propyl
bridge
and
hydroxyl
bridges,
are
synthesized
for
the
first
time.
The
exhibited
improved
visible‐light
absorption,
narrow
energy
gap,
more
negative
reduction
potential
(160
mV
lower
than
4,4′‐thienoviologens)
stable
free
radical
states
compared
4,4′‐thienoviologens
parent
2,2′‐viologens.
utilization
femtosecond
transient
absorption
(fs‐TA)
demonstrated
that
2,2′‐thienoviologen
can
produce
distinct
charge‐separated
under
visible
light
excitation.
Due
to
their
excellent
photophysical
electrochemical
properties,
used
electrochromic
devices
combined
g‐C
3
N
4
via
hydrogen
bonds
catalytic
production.
Based
on
advantageous
electron‐donating
properties
2,2′‐SV
,
release
efficiency
2,2′‐thienoviologens‐modified
composites
is
8542
µmol·h
−1
·g
a
value
highest
reported
production
from
organic
small‐molecule‐modified
78
times
higher
unmodified
.
This
study
presents
concise
method
convert
solar
broaden
applications
2,2′‐viologens
in
photocatalytic
systems.
