Recent Progress in Aqueous Zinc-ion Batteries Based on Conversion-type Cathodes
Advanced Powder Materials,
Год журнала:
2025,
Номер
unknown, С. 100278 - 100278
Опубликована: Фев. 1, 2025
Язык: Английский
Dual‐Functional Organoiodide Additive for Highly Efficient Sulfur Redox Kinetics and Zinc Regulation in Aqueous Zinc–Sulfur Batteries
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 7, 2025
Abstract
Aqueous
zinc–sulfur
(Zn–S)
batteries
garner
significant
attention
for
energy
torage
due
to
high
capacity,
cost‐efficiency,
and
eco‐sustainability.
However,
the
sluggish
solid–solid
conversion
poor
cycling
impede
their
further
development.
Herein,
a
dual‐functional
choline
iodide
(CHI)
redox
mediator
is
introduced
manipulate
sulfur
electrochemistry
Zn
anode.
For
cathode,
addition
of
CHI
cannot
only
facilitate
oxidation
process
ZnS
by
enlarging
bonding
length
on
surface
but
also
form
protective
layer
that
inhibits
side
reactions
involving
H
2
S,
SO
4
2−
decomposition
water,
thereby
improving
its
reversibility.
Regarding
anode,
effectively
reduces
nucleation
overpotential,
mitigates
distortion
electric
potential
fields,
promotes
uniform
deposition
through
electrostatic
shielding.
Consequently,
assembled
Zn–S
battery
delivers
specific
capacity
1666
mAh
g
−1
at
1
A
,
an
impressive
rate
performance
1071
while
overpotential
significantly
reduced
from
31.9
11.5
mV.
This
work
exemplifies
effective
strategy
boost
high‐performance
paving
way
rational
design
mediators
in
electrochemistry.
Язык: Английский
Advantages of Novel Anti-cancer Selenosemicarbazones: Preferential Reactivity of Their Fe(III), Cu(II), and Zn(II) Complexes with Key Physiological Reductants/Ligands Versus Isosteric Thiosemicarbazones
Journal of Medicinal Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 23, 2025
Fe(III)
complexes
of
clinically
trialed
thiosemicarbazones
demonstrate
deleterious
oxy-myoglobin
and
oxy-hemoglobin
oxidation.
Therefore,
the
PPP4pSe
selenosemicarbazone
analogues
were
designed
with
several
completely
preventing
This
was
ascribed
to
decreased
potentials
their
steric
hindrance
effects.
The
Fe(III),
Cu(II),
Zn(II)
demonstrated
greater
reactivity
physiological
reductants/ligands
(glutathione,
l-cysteine,
or
l-ascorbate),
than
respective
isosteric
thiosemicarbazone,
PPP4pT.
Considering
this:
(1)
[Fe(PPP4pSe)2]+
increased
reduction
relative
[Fe(PPP4pT)2]+
glutathione
while
l-ascorbate
led
comparable
reduction;
(2)
complete
dissociation
[Zn(PPP4pSe)2],
incomplete
[Zn(PPP4pT)2]
occurred;
(3)
[Cu(PPP4pSe)Cl]
coordinate
sphere
substitution
glutathione,
l-ascorbate,
whereas
[Cu(PPP4pT)Cl]
partial
substitution.
role
in
all
three
latter
reactions
is
significant,
given
selenosemicarbazone,
glutathione's
key
thiosemicarbazone
anticancer
activity.
Язык: Английский
In-situ generated sulfur/porous carbon nanocomposites featuring enhanced specific surface area for aqueous zinc-sulfur batteries with small electrochemical polarization
Journal of Power Sources,
Год журнала:
2024,
Номер
627, С. 235829 - 235829
Опубликована: Ноя. 17, 2024
Язык: Английский
Uncovering ZnS growth behavior and morphology control for high-performance aqueous Zn–S batteries
Chemical Science,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 23, 2024
A
salt
anion
dependent
growth
behavior
of
ZnS
in
aqueous
Zn–S
batteries
is
revealed.
The
3D
morphology
obtained
with
the
electrolyte
containing
a
high
donor
number
ensures
excellent
electrochemical
activity
cathode.
Язык: Английский
Improving ZnS Oxidation Kinetics Through Nucleophilic Regulation for High‐Performance Zinc–Sulfur Batteries
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 31, 2024
Abstract
Aqueous
zinc–sulfur
(Zn─S)
batteries
represent
a
promising
technology
for
grid‐scale
energy
storage
because
of
the
advantages
environmental
friendliness,
low
cost,
and
high
theoretical
capacity.
However,
practical
applications
Zn─S
are
hindered
by
sluggish
oxidation
kinetics
zinc
sulfide
(ZnS)
during
charge
process.
Herein,
strategy
nucleophilic
regulation
is
proposed
to
modulate
ZnS
adjusting
bonding
strength.
By
screening
different
groups,
it
found
that
tetramethylene
sulfone
(TMS)
can
not
only
strongly
interact
with
Zn
atoms
through
group
lower
barrier
but
also
effectively
suppress
side
reactions
shielding
from
active
water
molecules,
thus
facilitating
complete
conversion
sulfur.
Benefiting
these
advantages,
aqueous
assembled
TMS
as
multifunctional
electrolyte
additive
demonstrate
superior
specific
capacity
799
mAh
g
−1
at
current
density
2.0
A
649
4.0
an
enhanced
retention
after
long
cycles.
This
work
demonstrates
promise
modulating
cathode
reaction
in
beyond.
Язык: Английский