Results in Engineering,
Год журнала:
2023,
Номер
21, С. 101702 - 101702
Опубликована: Дек. 24, 2023
Magnetic
nanoparticles,
particularly
nanosized
spinel
ferrites,
have
emerged
as
promising
materials
in
science,
engineering,
and
medicine
due
to
their
unique
intriguing
properties
achieved
through
various
synthesis
methods.
These
nanoparticles
play
crucial
roles
research,
commercial
products,
biomedical
applications.
The
increasing
interest
green
methods
for
magnetic
nanocomposites
is
driven
by
significance
diverse
fields,
including
medicine,
environmental
remediation.
Recently,
there
has
been
a
burgeoning
focus
on
green-synthesized
ferrite
(MFe2O4,
where
M
=
Co,
Cu,
Mn,
Ni,
Zn,
Mg)
nanocomposites,
which
find
applications
chemical,
biological,
reactions.
This
review
highlights
the
latest
research
conducted
over
last
four
years
producing
ferrites
containing
additional
elements,
focusing
plant
microorganism-mediated
techniques.
surface
of
nanomaterials
energy,
sensors,
water
treatment,
antimicrobial
activity,
heavy
metal
removal,
are
discussed.
facilitates
comprehensive
understanding
incorporating
findings
advancements.
A
thorough
knowledge
synthesis,
properties,
highlighted
maximizing
potential
nanoferrites
fields.
ECS Sensors Plus,
Год журнала:
2024,
Номер
3(1), С. 013401 - 013401
Опубликована: Янв. 22, 2024
The
economic
growth
of
any
country
depends
upon
the
MSMEs
as
it
plays
a
vital
role
in
GDP
and
employment.
transportation
is
considered
lifeline
country.
Hence
due
to
developing
countries,
industries
vehicles
are
continuously
increasing
fulfil
industrial
or
domestic
requirements.
But
unfortunately,
emit
harmful
gases
exhaust
environment.
Which
directly
indirectly
impact
human
health.
Fresh
clean
air
prime
need
society.
monitoring
different
gas
concentrations
environment
very
essential
take
preventive
steps
control
pollution.
traditional
method
quality
expensive,
hence
most
countries
have
limited
stations.
In
field
nanotechnology,
scientists
developed
types
soft
metal
oxide
materials
that
capable
sensing
at
low
can
work
environmental
conditions.
For
last
10
years,
ferrite-based
sensors
primarily
used
detect
gases,
pollutants
from
vehicle
exhaust,
pollution
monitoring.
These
ferrites
excellent
electrical
magnetic
properties
also
be
tuned
according
requirement
sensor
increase
sensitivity
selectivity.
tuning
ferrite
synthesis
technique,
optimizing
preparation
conditions,
sintering
temperatures,
operating
dopant
concentration,
etc
This
paper
based
on
deep
study
techniques
nano-ferrites,
sensors,
mechanisms,
parameters,
application
chemo-resistive
sensors.
key
parameters
for
phase
formation,
crystallite
size,
grain
surface
area,
selectivity,
dopants,
sensitivity,
temperature,
response/recovery
time.
review
includes
researchers
find
high
like
hydrogen
(H
2
),
carbon
monoxide
(CO),
dioxide
(CO
oxygen
(O
ethylene
glycol
(CH2
mathvariant="italic">OH
stretchy="false">)
,
methane
(CH
4
ammonia
(NH
3
)
liquid
petroleum
(LPG),
acetylene
(C
H
nitrogen
oxides
(NOx)
selected
application.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 9, 2024
Abstract
Microwave
absorbing
materials
play
an
increasingly
important
role
in
modern
electronic
warfare
technology
for
enhancing
electromagnetic
compatibility
and
suppressing
interference.
High‐entropy
ceramics
(HECs)
possess
extraordinary
physical
chemical
properties,
more
importantly,
the
high
tunability
of
multi‐component
HECs
has
brought
new
opportunities
to
microwave
materials.
Rich
crystallographic
distortions
occupancies
enable
have
highly
efficient
absorption
excellent
mechanical
thermal
stability.
Therefore,
structural
advantages
are
integrated
from
comprehensive
perspectives,
emphasizing
on
dielectric
magnetic
properties
phenomenon.
Strategies
proposed
improve
capacity
HECs,
including
composition
optimization,
microstructure
engineering,
post‐treatment
technology.
Finally,
problems
obstacles
associated
with
high‐entropy
(HEMs)
research
discussed.
The
innovative
design
concepts
highlighted.
Journal of Umm Al-Qura University for Applied Sciences,
Год журнала:
2024,
Номер
unknown
Опубликована: Май 30, 2024
Abstract
Nanotechnology
refers
to
nanomaterials
of
different
dimensions,
ranging
in
size
from
1
100
nm.
Shape
and
size,
as
well
properties
nanomaterials,
depend
on
the
materials
based
their
production.
Nanomaterials
are
classified
according
type
substrate
into
carbon-based
metal-based
ceramic
lipid-based
semiconductor
polymer
nanomaterials.
There
many
physical
methods
that
widely
used
produce
among
these
inert
gas
condensation
(IGC),
evaporation,
electric
arc
discharge,
sputtering,
laser
methods.
Many
characterization
analysis
techniques
including
ultraviolet–visible
(UV–V)
spectroscopy,
XRD
(X-ray
diffraction),
BET
(Brunauere
emmette
teller),
FESEM
(Field
emission
scanning
electron
microscopy),
FTIRS
(Fourier
transform
infrared
spectroscopy),
TEM
(Transmission
microscopy)
Zeta
analysis.
The
unique
distinguish
allows
them
penetrate
applications
directly
serve
world.
have
been
utilized
various
environment,
agriculture,
food
industries,
medical
chemical
processing,
military
industries.
