Advanced Engineering Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 30, 2024
Vanadium
oxides
are
widely
used
for
microsupercapacitors
(MSCs)
due
to
their
multiple‐valence
and
high
theoretical
capacitance.
A
conceptually
new
approach
of
electric
discharge
machining
(EDM)
with
computer‐aided
control
is
developed
one‐step
fabricate
Mo‐doped
VO
0.2
‐based
electrodes
devices
designable
geometry.
The
results
demonstrate
that
the
Mo@VO
integrated
interdigital
MSCs
(IIMSCs)
narrowest
electrode
distance
300
μm
show
best
capacitive
performance,
which
furtherly
manifested
by
field
simulation.
Moreover,
this
work
concentrates
on
expounding
relationships
between
EDM
current,
surface
morphology
,
behavior
IIMSCs.
Compared
current
2
3
A,
1
facilitates
synthesizing
smaller
particles
more
porosity
higher
area
thus
achieving
a
larger
capacitance
value
IIMSCs
device,
32
mF
cm
−2
at
mV
s
−1
working
well
up
an
ultrahigh
scan
rate
30
V
obtaining
good
cyclic
stability
88.61%
after
5000
cycles.
innovative
opens
avenue
synthesis
various
ceramic
metal
microdevices
such
as
microbatteries
microsensors.
Molecules,
Journal Year:
2024,
Volume and Issue:
29(13), P. 3083 - 3083
Published: June 28, 2024
In
recent
years,
sodium-ion
batteries
(SIBs)
have
gained
a
foothold
in
specific
applications
related
to
lithium-ion
batteries,
thanks
continuous
breakthroughs
and
innovations
materials
by
researchers.
Commercial
graphite
anodes
suffer
from
small
interlayer
spacing
(0.334
nm),
limited
capacity
(200
mAh
g−1),
low
discharge
voltage
(<0.1
V),
making
them
inefficient
for
high-performance
operation
SIBs.
Hence,
the
current
research
focus
is
on
seeking
negative
electrode
that
are
compatible
with
of
Many
studies
been
reported
modification
transition
metal
selenides
as
SIBs,
mainly
targeting
issue
poor
cycling
life
attributed
volume
expansion
material
during
extraction
insertion
processes.
However,
intrinsic
electronic
structure
also
influences
electron
transport
diffusion.
Therefore,
modulating
their
can
fundamentally
improve
affinity
selenides,
thereby
enhancing
rate
performance
This
work
provides
comprehensive
review
strategies
focusing
modulation
structures
construction
heterogeneous
selenides.
These
effectively
enhance
metrics
electrodes
including
fast
charging,
stability,
first-cycle
coulombic
efficiency,
facilitating
development
Materials,
Journal Year:
2025,
Volume and Issue:
18(2), P. 397 - 397
Published: Jan. 16, 2025
The
glycine
nitrate
procedure
(GNP)
is
a
method
that
proved
to
be
the
easiest
and
most
effective
for
controlling
composition
morphology
during
synthesis
of
Co0.9R0.1MoO4
(R
=
Ho,
Yb,
Gd).
This
combustion
process
achieves
control
stoichiometry,
homogeneity,
purity.
Metal
nitrates
were
mixed
in
appropriate
stoichiometric
ratios
produce
samples
obtained
by
mentioned
further
subjected
different
characterization
methods
such
as
differential
thermal
analyses
(DTA),
X-ray
diffraction
(XRD),
Fourier
transform
infrared
spectrum
(FTIR),
spectroscopy,
field
emission
scanning
electron
microscopy
(FESEM),
nitrogen
adsorption
method.
A
high
level
anisotropy
shape
size
particles
form
agglomerates
was
found.
Also,
there
are
noticeable
differences
microstructure
plate
crystals.
color
synthesized
sample
changes
from
darker
lighter
shades
after
treatments.
There
pronounced
dominant
wavelength
(nm)
purity
between
initial
heating
(1100
°C)
due
concentration
Co.
Journal of Energy Chemistry,
Journal Year:
2024,
Volume and Issue:
97, P. 710 - 737
Published: July 9, 2024
Metal
(Li,
Na,
K,
Al)-ion
batteries
and
lithium-sulfur
lithium-tellurium
are
gaining
recognition
for
their
eco-friendly
characteristics,
substantial
energy
density,
sustainable
attributes.
However,
the
overall
performance
of
rechargeable
heavily
depends
on
electrode
materials.
Transition
metal
tellurides
have
recently
gained
significant
attention
due
to
high
electrical
conductivity
density.
Cobalt
telluride
has
received
most
extensive
research
its
catalytic
activity,
unique
magnetic
properties,
diverse
composition
crystal
structure.
Nevertheless,
limited
volume
variation
contribute
structural
deterioration
rapid
capacity
decline.
This
review
comprehensively
summarizes
recent
advances
in
rational
design
synthesis
modified
cobalt
telluride-based
electrodes,
encompassing
defect
engineering
(Te
vacancies,
cation
heterointerfaces,
homogeneous
interfaces)
composite
(derived
carbon
from
precursors,
fibers,
Mxene,
graphene
nanosheets,
etc.).
Particularly,
intricate
evolution
mechanisms
conversion
reaction
process
during
cycling
elucidated.
Furthermore,
these
strategies
applied
other
transitional
tellurides,
such
as
iron
telluride,
nickel
zinc
copper
molybdenum
etc.,
also
thoroughly
summarized.
Additionally,
application
extends
emerging
aqueous
zinc-ion
batteries.
Finally,
potential
challenges
prospects
discussed
further
propel
development
transition
materials
next-generation
