Molecules,
Год журнала:
2023,
Номер
28(12), С. 4737 - 4737
Опубликована: Июнь 13, 2023
Electrolytes
are
one
of
the
most
influential
aspects
determining
efficiency
electrochemical
supercapacitors.
Therefore,
in
this
paper,
we
investigate
effect
introducing
co-solvents
ester
into
ethylene
carbonate
(EC).
The
use
(EC)
as
an
electrolyte
for
supercapacitors
improves
conductivity,
properties,
and
stability,
allowing
greater
energy
storage
capacity
increased
device
durability.
We
synthesized
extremely
thin
nanosheets
niobium
silver
sulfide
using
a
hydrothermal
process
mixed
them
with
magnesium
sulfate
different
wt%
ratios
to
produce
Mg(NbAgS)x)(SO4)y.
synergistic
MgSO4
NbS2
density
supercapattery.
Multivalent
ion
Mg(NbAgS)x(SO4)y
enables
number
ions.
Mg(NbAgS)x)(SO4)y
was
directly
deposited
on
nickel
foam
substrate
simple
innovative
electrodeposition
approach.
provided
maximum
specific
2087
C/g
at
2.0
A/g
current
because
its
substantial
electrochemically
active
surface
area
linked
nanosheet
channels
which
aid
transportation.
supercapattery
designed
activated
carbon
(AC)
achieved
high
79
Wh/kg
addition
power
420
W/kg.
(Mg(NbAgS)x)(SO4)y//AC)
subjected
15,000
consecutive
cycles.
Coulombic
81%
after
cycles
while
retaining
78%
retention.
This
study
reveals
that
novel
electrode
material
(Mg(NbAgS)x(SO4)y)
ester-based
electrolytes
has
great
potential
applications.
Journal of Materials Chemistry A,
Год журнала:
2022,
Номер
10(9), С. 4489 - 4516
Опубликована: Янв. 1, 2022
This
review
summarizes
the
field
of
iron-catalyzed
graphitization,
which
is
a
simple
and
flexible
route
to
produce
nanostructured
graphitic
carbons
from
wide
range
organic
precursors.
Polymers,
Год журнала:
2022,
Номер
14(2), С. 270 - 270
Опубликована: Янв. 10, 2022
Energy
generation
can
be
clean
and
sustainable
if
it
is
dependent
on
renewable
resources
prominently
utilized
stored
efficiently.
Recently,
biomass-derived
carbon
polymers
have
been
focused
developing
less
hazardous
eco-friendly
electrodes
for
energy
storage
devices.
We
boosting
the
supercapacitor's
ability
by
engineering
efficient
in
this
context.
The
well-known
conductive
polymer,
polyaniline
(PANI),
deposited
nickel
foam
(NF)
used
as
a
positive
electrode,
while
activated
derived
from
jute
sticks
(JAC)
NF
negative
electrode.
asymmetric
supercapacitor
(ASC)
fabricated
electrochemical
studies
found
that
device
has
exhibited
an
density
of
24
µWh/cm2
at
power
3571
µW/cm2.
Furthermore,
ASC
PANI/NF//KOH//JAC/NF
good
stability
with
~86%
capacitance
retention
even
after
1000
cycles.
Thus,
enhanced
performances
are
congregated
depositing
PANI
boosts
electrode's
conductivity.
Such
deposition
patterns
assured
faster
ions
diffusion,
higher
surface
area,
ample
electroactive
sites
better
electrolyte
interaction.
Besides
advancing
technology,
such
work
also
encourages
sustainability.
The Chemical Record,
Год журнала:
2022,
Номер
22(7)
Опубликована: Апрель 14, 2022
Abstract
Due
to
advancements
in
technology,
the
energy
demand
is
becoming
more
intense
with
time.
The
rapid
fossil
fuels
consumption
and
environmental
concerns
triggered
intensive
research
for
alternative
renewable
resources,
including
sunlight
wind.
Yet,
due
their
time‐dependent
operations,
significant
electric
storage
systems
are
required
store
substantial
energy.
In
this
regard,
electrochemical
devices,
like
batteries
supercapacitors
(SCs),
have
recently
attracted
much
attention.
Recent
developments
SCs
demonstrated
that
hybrid
(HSCs),
which
combine
excellent
properties
of
SCs,
increase
specific
energy,
power,
capacitance,
life
span.
Carbonaceous
redox‐active
materials
been
explored
as
efficient
electrode
applications
HSCs,
ultimately
enhancing
performances.
HSCs
performance
significantly
depends
on
porosity,
surface
area,
conductivity
materials.
This
review
article
gives
an
overview
recent
advances
developing
high
long
cyclic‐life.
fabrication
various
using
carbonaceous
nanoarchitectures
characterization
in‐depth,
development,
basic
principles,
device
engineering.
A
proper
investigation
has
conducted
regarding
state‐of‐the‐art
HSC
electrodes.
focuses
most
up‐to‐date,
cutting‐edge,
performance.
possibilities
novel
impact
future
also
discussed.
The Chemical Record,
Год журнала:
2022,
Номер
22(7)
Опубликована: Март 21, 2022
Abstract
The
demand
for
energy
storage
devices
with
high
and
power
densities
has
increased
tremendously
in
this
rapidly
growing
world.
Conventional
capacitors,
fuel
cells,
lithium‐ion
batteries
have
been
used
as
the
long
term.
However,
supercapacitors
are
one
of
most
promising
because
their
specific
capacitance,
density,
longer
cycle
life.
Recent
research
focused
on
synthesizing
transition‐metal
oxides/hydroxides,
carbon
materials,
conducting
polymers
supercapacitor
electrode
materials.
performance
can
be
improved
by
altering
electrolytes,
current
collectors,
experimental
temperatures,
film
thickness.
Thousands
papers
already
published,
reflecting
significance
elucidating
how
much
demanding
such
fast‐growing
generation.
This
review
aims
to
illustrate
materials
loaded
various
conductive
substrates
electrochemical
deposition
employed
provide
broad
knowledge
synthetic
pathways,
which
will
pave
way
future
research.
We
also
discussed
basic
parameters
involved
studies
advantages
techniques
through
literature
analysis.
Finally,
trends
directions
exploring
metals/metal
composites
toward
designing
constructing
viable,
high‐class,
even
newly
featured
flexible
electrodes,
systems
presented.
A
simple
and
scalable
method
to
fabricate
a
novel
high-energy
asymmetric
supercapacitor
using
tomato-leaf-derived
hierarchical
porous
activated
carbon
(TAC)
electrochemically
deposited
polyaniline
(PANI)
for
battery-free
heart-pulse-rate
monitor
is
reported.
In
this
study,
TAC
prepared
by
pyrolysis,
exhibiting
nanosheet-type
morphology
high
specific
surface
area
of
≈1440
m2
g-1
,
PANI
onto
cloth.
The
TAC-
PANI-
based
demonstrates
an
electrochemical
performance
superior
that
symmetric
supercapacitors,
delivering
capacitance
248
mF
cm-2
at
current
density
1.0
mA
.
developed
shows
energy
270
µWh
power
1400
µW
as
well
excellent
cyclic
stability
≈95%
retention
after
10
000
charging-discharging
cycles
while
maintaining
≈98%
Coulombic
efficiency.
Impressively,
the
series-connected
supercapacitors
can
operate
extremely
efficiently
upon
solar-panel
charging
under
regular
laboratory
illumination.
ACS Sensors,
Год журнала:
2023,
Номер
8(4), С. 1373 - 1390
Опубликована: Апрель 19, 2023
Presently,
numerous
state-of-the-art
approaches
are
being
adapted
for
gas
sensing
and
monitoring.
These
include
hazardous
leak
detection
as
well
ambient
air
Photoionization
detectors,
electrochemical
sensors,
optical
infrared
sensors
a
few
of
the
commonly
widely
used
technologies.
Extensive
reviews
on
current
state
have
been
summarized.
which
either
nonselective
or
semiselective,
affected
by
unwanted
analytes.
On
other
hand,
volatile
organic
compounds
(VOCs)
can
be
heavily
mixed
in
many
vapor
intrusion
situations.
To
determine
individual
VOCs
highly
sample
using
semiselective
separation
discrimination
technologies
warranted.
permeable
membranes,
metal-organic
frameworks,
microfluidics
IR
bandpass
filters
different
respectively.
The
majority
these
currently
developed
evaluated
laboratory-controlled
environments
not
yet
extensively
utilized
field
show
promise
continued
development
application
more
complex
mixtures.
Hence,
present
review
focuses
perspectives
summary
existing
popular
reported
environmental
applications.
