Constructing Sulfur‐Heterocyclic Aromatic Amine Polymer with Multiple‐Redox Active Sites for Long‐Lifespan and All‐Organic Aqueous Magnesium Ion Batteries
Advanced Energy Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 22, 2024
Abstract
Organic
polymer
materials
have
attracted
much
attention
in
rechargeable
aqueous
magnesium
ion
batteries
(AMIBs)
due
to
their
sustainability
and
structural
designability.
However,
the
ionic
storage
capability
is
hindered
by
insufficient
redox‐active
sites,
dissolvability
electrolytes,
short‐range
conjugated
structures,
resulting
low
energy
density
poor
cycling
stability.
Herein,
a
sulfur‐heterocyclic
aromatic
polyimide‐based
organic
(PTDBS)
constructed
with
multiple
sites
long‐range
conjugate,
which
employed
as
active
material
for
AMIB
anode,
achieving
an
outstanding
Mg
2+
capability.
Benefitting
from
introduced
thioether
bonds,
PTDBS
possesses
enhanced
electronic
conductivity
additional
reversible
coordination,
thus
ensuring
high
redox
activity
superior
electron
affinity.
As
result,
electrode
delivers
ultrafast
stable
MgCl
2
electrolyte
rate
capacity
of
98.6
mA
h
g
−1
at
10.0
A
,
remarkable
stability
over
7500
cycles
retention
90.0%.
Notably,
all‐organic
full
cell,
realized
coupling
anode
polyindole
cathode,
achieves
long
lifespan.
This
work
lays
foundation
development
highly
large‐scale
storage.
Язык: Английский
Intermediate-motivated charge transfer via alternate dipoles accelerating the deep redox of iodine/sulfur/molybdenum for high-performance multiple ion batteries
Journal of Energy Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Язык: Английский
Polycalmagite Coating Enables Long‐Term Alkaline Seawater Oxidation Over NiFe Layered Double Hydroxide
Small,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 21, 2025
Abstract
Renewable
energy‐powered
seawater
electrolysis
is
a
green
and
attractive
technique
for
producing
high‐purity
hydrogen.
However,
severe
chlorideions
(Cl
−
)
their
derivatives
tend
to
corrode
anodic
catalysts
at
ampere‐level
current
densities
hinder
the
application
of
seawater‐to‐H
2
systems.
Herein,
polycalmagite
(PCM)‐coated
NiFe
layered
double
hydroxide
presented
on
Ni
foam
(NiFe
LDH@PCM/NF)
that
exhibits
exceptional
stability
in
alkaline
seawater.
PCM
not
only
acts
as
conductive
layer
reduce
charge
transfer
resistance
anodes
but
also
polymer‐based
protective
inhibit
Cl
adsorption
stabilize
metal
ions
oxidation
due
its
own
anions
strong
adhesion,
thereby
increasing
activity
during
Thus,
LDH@PCM/NF
needs
low
overpotential
364
mV
reach
up
1000
mA
cm
−2
maintains
operation
500
h
without
degradation.
Moreover,
minimal
amount
hypochlorite
can
be
detected
electrolyte
after
500‐h
test.
This
development
affords
significant
exploration
creating
durable
efficient
anodes,
highlighting
importance
polymer
coating
toward
anti‐corrosion
oxidation.
Язык: Английский
Elevating Solar-Thermal Conversion of Reprocessed Phase Change Materials Simultaneously toward Efficient Energy Storage and Self-Healing
ACS Sustainable Chemistry & Engineering,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 4, 2025
Язык: Английский
High‐Performance Magnesium‐Organic Batteries Enabled by a Multielectron Redox‐Bipolar Polyaniline Cathode
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 18, 2025
Abstract
Rechargeable
magnesium
batteries
(RMBs)
are
emerging
as
a
safer,
high‐capacity
alternative
to
lithium‐ion
due
the
high
volumetric
capacity
and
reduced
dendrite
formation
of
anode.
Among
different
cathodes
RMBs,
bipolar‐type
materials
further
enhance
energy
density
RMBs
by
balancing
redox
potential
with
specific
capacity.
Herein,
application
emeraldine
base
polyaniline
(PANI)
cathode
material
for
is
explored.
PANI
exhibits
both
p
‐
n
‐type
charge
storage
behaviors,
enabling
186.8
mAh
g
−1
stable
cycling
performance
at
current
200
mA
power
6341.8
W
kg
superior
traditional
materials.
First
principle
calculations
ex
situ
characterizations
reveal
that
molecular
structure
supports
bipolar
mechanism.
Additionally,
pouch
cells
based
on
demonstrate
reliable
operation
flexibility,
positioning
promising
advanced
other
systems.
Язык: Английский
Volumetric performance and energy-storage mechanism of high-density Ni-based coordination polymer electrodes for hybrid capacitors
Chemical Engineering Journal,
Год журнала:
2025,
Номер
unknown, С. 161555 - 161555
Опубликована: Март 1, 2025
Язык: Английский
Polyimide synthesis and characterizations: DFT-assisted computational studies on structural units
Iranian Polymer Journal,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 4, 2024
Язык: Английский
Sulfur Heterocyclic Quinone Cathodes for Rechargeable Magnesium Batteries: Discharge Voltage, Cycling Stability, and Reaction Reversibility Improved by Sulfur Substitution
Hongda Gui,
Donggang Tao,
Yudi Tang
и другие.
ACS Sustainable Chemistry & Engineering,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 8, 2024
Rechargeable
magnesium
batteries
have
the
potential
for
large-scale
energy-storage
applications,
but
traditional
inorganic
cathodes
suffer
from
inferior
performance
and
insufficient
selections.
Organic
conjugated
carbonyl
compounds
are
promising
cathode
materials
with
a
delocalized
negative
charge,
reversible
enolization,
wide
designability.
Herein,
sulfur
heterocyclic
quinones
of
dibenzo[b,i]thianthrene-5,7,12,14-tetraone
(DTT)
benzo[b]naphtho[2′,3′:5,6][1,4]dithiino[2,3-i]thianthrene-5,7,9,14,16,18-hexone
(BNDTH)
prepared
investigated
as
rechargeable
compared
normal
quinone
5,7,12,14-pentacenetetrone
(PT).
DTT
BNDTH
show
higher
redox
potentials,
storage
capacities,
better
cycling
stabilities
than
PT.
Mechanism
study
theoretical
computation
reveal
that
adjacent
carbonyls
connected
atoms
in
coordinate
bivalent
cations
rigid
PT
via
conformation
change,
leading
to
reaction
reversibility.
lower
LUMO
energy
levels
thus
potentials
solubilities
electrolytes
result
stability.
The
comparative
herein
would
provide
scientific
insights
into
rational
design
organic
suitable
stable
reactions
cations.
Язык: Английский