Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 10, 2024
Abstract
2D
layered
materials,
combined
with
ion
intercalation
and
diffusion
storage
mechanisms,
are
among
the
most
promising
materials
for
high‐performance
rechargeable
batteries
(especially
NH
4
+
systems).
However,
slow
interlayer
dynamics
hinder
their
development.
Most
of
research
focuses
on
mechanism
hydrogen
bonds,
ignoring
special
structure
function
interlayer.
In
this
study,
Mg(H
2
O)
6
2+
strategy
MoS
is
proposed
weak
constraint
sulfur
vacancy
co‐constructed.
It
found
that
ions
increased
spacing,
effectively
space,
reduced
;
Meanwhile,
reduces
activity
number
coordination
sites.
This
promotes
kinetics
.
aspect
concern
has
been
almost
ignored
in
previous
studies.
work
advances
to
provide
insights
a
fundamental
understanding
behavior
structural
features,
paving
way
development
sustainable
energy
systems.
ACS Applied Energy Materials,
Journal Year:
2025,
Volume and Issue:
8(1), P. 376 - 387
Published: Jan. 3, 2025
Ammonium
ion
storage
is
poised
to
revolutionize
energy
because
of
its
affordability,
safety,
abundance
elements,
and
eco-friendliness.
However,
the
potential
NH4+
has
been
elusive
as
a
result
difficulties
in
host
materials
development.
For
first
time,
we
have
explored
capabilities
nanocomposite
made
ammonium
vanadium
oxide
(NVO)
porous
activated
carbon
(PAC).
This
NVO–PAC
boasts
specific
capacitance
527
mF
cm–2,
surpassing
367
cm–2
value
NVO
alone
at
constant
current
density
2
mA
cm–2.
The
PAC
combination
significantly
increases
surface
area,
contributing
nanocomposite's
enhanced
capacitance.
synergistic
mechanisms
deintercalation/intercalation
adsorption
ions
on
further
amplify
Moreover,
fabricated
symmetric
cell
using
NVO–PAC,
delivering
an
outstanding
95
mWh
power
2400
mW
exceptional
cycling
stability,
retaining
100%
original
even
after
104
cycles
with
97%
Coulombic
efficiency.
Advanced Energy Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 26, 2025
Abstract
Polymer‐intercalated
metal
oxides
have
attracted
considerable
attention
for
ammonium
ions
(NH
4
+
)
storage
due
to
their
enhanced
interlayer
space,
which,
through
the
pillar
effect,
facilitates
rapid
and
efficient
transport
of
NH
.
However,
understanding
remains
limited
regarding
how
polymer
intercalants
affect
intrinsic
structure
host
materials,
especially
variations
in
atomic
orbital
electronic
structural
induced
by
intercalants.
Herein,
a
polyaniline‐intercalated
vanadium
oxide
(P‐VO
x
is
developed
and,
first
time,
its
behavior
validated
as
an
anode
material.
Using
various
spectroscopy
techniques
combined
with
theoretical
simulation,
changes
are
analyzed
intercalant.
Spectroscopy
studies
reveal
that
insertion
polyaniline
optimizes
V
2
O
5
,
promoting
transition
electrons
3d
xy
state
increasing
occupation
t
2g
orbital,
thereby
enhancing
electrical
conductivity.
Computational
results
confirm
P‐VO
lowers
migration
barrier,
electron/NH
transfer.
As
result,
electrode
demonstrates
outstanding
capacity
unprecedented
long‐term
cycling
stability.
This
study
provides
new
insights
into
intercalant
underscores
advantages
polymer‐intercalated
VO
high‐performance
storage.
Energy & Fuels,
Journal Year:
2024,
Volume and Issue:
38(15), P. 13585 - 13611
Published: July 16, 2024
The
demand
for
energy
storage
is
exponentially
increasing
with
the
growth
of
human
population,
which
highly
intensive.
This
progress
demands
high-performing
and
reliable
devices
storing
delivering
charge
efficiently.
Hybrid
ion
supercapacitors
are
most
desirable
electrochemical
devices,
owing
to
their
versatile
tunable
performance
characteristics,
as
they
optimized
assembly
batteries
(energy
devices)
(power
devices).
In
this
regard,
ammonium
hybrid
(AIHSs)
have
grabbed
substantial
research
consideration
in
past
years
due
notable
advantages
affordability,
safety,
fast
diffusion
kinetics,
ecofriendliness,
high
density,
unique
tetrahedral
structure
abundant
carriers
NH4+
resources.
Up
now,
although
there
been
advancements
AIHSs
over
few
years,
including
various
electrode
materials,
device
structures,
novel
electrolytes,
remains
a
lack
comprehensive
reviews
that
cover
recent
developments
provide
critical
insights
into
rapidly
evolving
field.
Therefore,
review
culminates
fundamental
principles,
basic
mechanisms,
approaches
enhancing
performances
AIHSs,
focusing
on
improving
these
parameters
improve
specific
capacitance,
longevity
commercial
success
capacitors,
nascent
stages
development.
To
best
our
knowledge,
it
first
complete
account
from
mechanism
developments.
Chemical Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
A
Co-MOF
with
(O
4
–Co–N
2
)
sites
was
integrated
Ti
3
C
T
x
MXene
carbonized
nanofibers,
achieving
980
F
g
−1
at
1
and
91.1%
retention
after
16
000
cycles.
Further,
the
device
delivered
41.5
mW
h
kg
energy
density.
National Science Review,
Journal Year:
2024,
Volume and Issue:
12(2)
Published: Nov. 28, 2024
ABSTRACT
Aqueous
ammonium
ion
batteries
(AAIBs)
have
attracted
considerable
attention
due
to
their
high
safety
and
rapid
diffusion
kinetics.
Unlike
spherical
metal
ions,
NH4+
forms
hydrogen
bonds
with
host
materials,
leading
a
unique
storage
mechanism.
A
variety
of
electrode
materials
been
proposed
for
AAIBs,
but
performance
often
falls
short
in
terms
future
energy
needs.
Hence,
there
is
critical
need
design
develop
advanced
AAIBs.
2D
tunable
interlayer
spacing,
remarkable
interfacial
chemistry
abundant
surface
functional
groups,
are
an
ideal
choice
storage.
This
review
highlights
the
latest
research
on
providing
insights
into
working
principles,
mechanisms
control
strategies
designing
high-performance
Furthermore,
summary
perspectives
development
AAIBs
provided,
aiming
promote
advancement
