Micromachines,
Год журнала:
2024,
Номер
16(1), С. 7 - 7
Опубликована: Дек. 25, 2024
Transition
metal
oxides,
distinguished
by
their
high
theoretical
specific
capacitance
values,
inexpensive
cost,
and
low
toxicity,
have
been
extensively
utilized
as
electrode
materials
for
high-performance
supercapacitors.
Nevertheless,
conductivity
is
generally
insufficient
to
facilitate
rapid
electron
transport
at
rates.
Therefore,
research
on
bimetallic
oxide
has
become
a
hot
spot,
especially
in
the
field
of
micro-supercapacitors
(MSC).
Hence,
this
study
presents
preparation
via
electro-spark
machining
(EM),
which
efficient,
convenient,
green
non-polluting,
well
customizable.
The
fabricated
copper-molybdenum
(MoCuOx)
device
showed
good
electrochemical
performance
under
system.
It
provided
areal
capacity
50.2
mF
cm-2
(scan
rate:
2
mV
s-1)
with
outstanding
cycling
retention
94.9%
even
after
2000
cycles.
This
work
opens
new
window
fabricating
an
environmental
customizable
way
various
electronics
applications.
Batteries,
Год журнала:
2025,
Номер
11(2), С. 60 - 60
Опубликована: Фев. 5, 2025
Hybrid
supercapacitors
(HSCs)
have
garnered
growing
interest
for
their
ability
to
combine
the
high
energy
storage
capability
of
batteries
with
rapid
charge–discharge
characteristics
supercapacitors.
This
review
examines
evolution
HSCs,
emphasizing
synergistic
mechanisms
that
integrate
both
Faradaic
and
non-Faradaic
charge
processes.
Transition
metal
oxides
(TMOs)
are
highlighted
as
promising
battery-type
electrodes
owing
notable
potential
compatibility
various
synthesis
routes,
including
hydro/solvothermal
methods,
electrospinning,
electrodeposition,
sol–gel
Particular
attention
is
directed
toward
Ti-,
Co-,
V-based
TMOs,
a
focus
on
tailoring
properties
through
morphology
control,
composite
formation,
doping
enhance
electrochemical
performance.
Overall,
discussion
underscores
HSCs
meet
demand
next-generation
systems
by
bridging
gap
between
power
requirements.
Molecules,
Год журнала:
2025,
Номер
30(1), С. 187 - 187
Опубликована: Янв. 5, 2025
Compared
to
natural
enzymes,
the
development
of
efficient
artificial
simulated
such
as
those
based
on
bimetallic
materials
with
high
catalytic
activity
and
good
stability,
is
an
important
way
until
now.
Herein,
we
employed
ZnCo2O4
microspheres
carriers
synthesize
Pt-doped
composites
different
amounts
using
a
one-pot
method.
The
morphology
structure
synthesized
were
characterized
XRD,
SEM,
BET,
FT-IR,
XPS,
Zeta
potential
techniques.
It
was
found
that
Pt0
adhered
well
surface
microspheres,
12.5%
Pt
doped
ratio
exhibiting
abundant
oxygen
vacancies,
excellent
substrate
affinity,
peroxidase-like
activity.
Using
fluorescent
probes
electrochemical
methods,
mechanism
has
been
explored
Pt@ZnCo2O4
can
accelerate
electron
transfer
between
H2O2
3,3',5,5'-tetramethylbenzidine
(TMB).
Based
optimal
loading
Pt@ZnCo2O4,
colorimetric
sensor
for
visual
detection
L-cysteine
(L-Cys)
constructed,
wide
linear
range
0.1~50
µM
low
limit
0.0163
µM.
possesses
selectivity,
reusability,
usage
which
be
applied
determination
L-Cys
in
health
product
capsules
recovery
rates
96.9%~103.7%
RSD
1.07%~6.50%.
This
work
broadens
application
prospects
spinel
field
biological
analysis
also
provides
inspiration
new
enzymes.
