Materials for Renewable and Sustainable Energy,
Journal Year:
2025,
Volume and Issue:
14(1)
Published: Jan. 15, 2025
Abstract
The
increasing
demand
for
cost-effective
materials
energy
storage
devices
has
prompted
investigations
into
diverse
waste
derived
electrode
supercapacitors
(SCs)
application.
This
review
examines
advancements
in
converting
carbon-based
SCs
renewable
storage.
In
this
context,
different
precursor
sources
have
been
explored
over
the
years
as
electrodes
SCs.
These
comprise
of
industrial,
plastics
and
biowastes,
including
plant
animal
wastes.
capabilities
various
are
highlighted
to
provide
an
understanding
unique
features
that
make
them
applicable
addition,
some
challenges
associated
with
waste-derived
terms
emphasized.
Here,
we
also
provided
insights
recent
progress
synthesis
techniques
their
effects
on
electrochemical
performance.
performance
tailoring
material
structures
through
incorporation
form
composites
optimized
methods
is
effective
strategy.
Hence,
outlined
include
pyrolysis,
hydrothermal,
microwave-assisted,
template-assisted,
sol–gel
techniques.
effect
discussed.
Overall,
highlights
valorization
future
research
directions
scaling
challenges.
Heliyon,
Journal Year:
2024,
Volume and Issue:
10(12), P. e33274 - e33274
Published: June 1, 2024
In
this
work,
trivalent
Yttrium
doped
calcium
aluminate
(CaAl2O4:x%
Y3+)
were
synthesized
for
the
first
time.
Through
Photoluminescence
(PL)
spectroscopy
and
Commission
Internationale
de
l'Eclairage
(CIE),
CaAl2O4:0.1
%
Y3+
has
demonstrated
to
be
a
potential
high
emitting
phosphor
material
amongst
other
concentration
samples,
vibrant
blue
–
pink
hue
where
others
are
transiting
from
green
within
white
vertex
region.
FTIR
UV–Vis
have
confirmed
prepared
presence
of
Y
dopant.
The
SEM
showed
insignificant
morphological
change
pores,
which
quantified
using
BJH
DFT
methods
micro
meso–pores.
Moreover,
CaAl2O4
is
also
being
reported
as
positive
electrode
in
supercapacitors
analysis
shows
that
it
superior
performance
1
M
KOH
electrolyte,
with
specific
capacity
47.71
mA
h
g−1
at
A
maximum
power
39.68
kW
kg−1.
Trasatti's
method
surface
(138
Fg-1)
diffusion
(695
contribution
ratio
17:83
(%)
total
stored
energy.
It
retention
columbic
efficiency
100
end
10
000
cycles,
was
achieved
via
utilization
all
micropores
reaction
sites.
EIS
small
solution
resistance
0.75
Ω,
indicating
ionic
conductivity
phase
angle
50
°.
Thus,
these
results
show
candidate
photoluminescence
energy
storage
application.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 4, 2024
The
recycling
and
upcycling
of
polyethylene
terephthalate
(PET),
the
most
widely
used
polyester
plastic
globally,
has
attracted
growing
attention
concerning
its
disposal
as
non-degradable
waste
in
natural
environment.
Transforming
end-of-life
PET
into
(bio)degradable
offers
a
novel
approach
to
managing
waste.
In
this
study,
we
introduce
simple
process
capable
converting
degradable
polyester,
terephthalate-polyethylene-1,4-cyclohexanedicarboxylate
(PET-PECHD),
by
partly
hydrogenating
aromatic
rings
(x)
aliphatic
ones
(y).
polyesters
with
variable
x/y
compositions
ranging
from
100/0
0/100
can
be
achieved,
molecular
weight
(Mw)
maintained
when
>87/13
due
nonobvious
depolymerization.
Pronounced
depolymerization
would
occur
deeper
hydrogenation,
which
generates
blend
PET-PECHD
polyethylene-1,4-cyclohexanedicarboxylate
(PECHD)
lower
Mw,
finally
single-type
polymer
PECHD.
demonstrates
comparable
thermal
stability
mechanical
strength
compared
PET,
along
superior
extensibility,
barrier
properties,
(bio)degradability
acidic,
alkaline
solutions,
moist
soil.
This
research
highlights
potential
for
cost-effective,
large-scale
production
real-life
Frontiers of Chemical Science and Engineering,
Journal Year:
2024,
Volume and Issue:
19(1)
Published: Sept. 15, 2024
Abstract
The
urgent
need
for
sustainable
waste
management
has
led
to
the
exploration
of
upcycling
plastics
and
biomass
as
viable
solutions.
In
2018,
global
plastic
production
reached
359
million
tonnes,
with
an
estimated
12000
tonnes
projected
be
delivered
disposed
in
landfills
by
2050.
Unfortunately,
current
practices
result
only
19.5%
being
recycled,
while
rest
is
either
landfilled
(55%)
or
incinerated
(25.5%).
improper
disposal
contributes
issues
such
soil
groundwater
contamination,
air
pollution,
wildlife
disturbance.
On
other
hand,
potential
deliver
around
240
exajoules
energy
per
year
2060.
However,
its
utilization
remains
relatively
small,
approximately
9%
biomass-derived
consumed
Europe
2017.
This
review
explores
various
methods
biomass,
including
mechanical,
chemical,
biological,
thermal
approaches.
It
also
highlights
applications
upcycled
sectors
construction,
packaging,
generation,
chemicals.
environmental
economic
benefits
are
emphasized,
reduction
preservation
natural
resources,
carbon
footprint
reduction,
circular
economy
advancement.
