Critical Reviews in Analytical Chemistry,
Год журнала:
2024,
Номер
unknown, С. 1 - 18
Опубликована: Апрель 9, 2024
Electrochemical
sensors
have
been
the
subject
of
much
research
and
development
as
late,
with
several
publications
detailing
new
designs
boasting
enhanced
performance
metrics.
That
is,
without
a
doubt,
because
such
stand
out
from
other
analytical
tools
thanks
to
their
excellent
characteristics,
low
cost,
ease
use.
Their
progress
has
shown
trend
toward
seeking
novel
useful
nano
structure
materials.
A
variety
nanostructure
metal
oxides
utilized
in
creation
potentiometric
sensors,
which
are
this
article.
For
screen-printed
pH
sensing
layers
due
mixed
ion-electron
conductivity
paste-ion-selective
electrode
components
solid-contact
electrodes.
Further
significant
uses
include
layers.
All
oxide
mentioned
within
purview
Nanoscale
potential
potentiometry
method,
paper
summarizes
uses,
including
hybrid
materials
single-component
Potentiometric
outstanding
properties
can
be
manufactured
entirely
oxides.
These
outperform
more
traditional,
conventional
electrodes
terms
characteristics.
In
review,
we
looked
at
different
building
solutions
various
nanoscale
Biosensors,
Год журнала:
2023,
Номер
13(4), С. 445 - 445
Опубликована: Март 31, 2023
ZnO/Fe2O3
nanocomposites
with
different
concentration
and
thickness
of
the
Fe2O3
layer
were
obtained
by
two-stage
aerosol
vapor
deposition
(AACVD).
It
was
shown
that
ZnO
particles
have
a
wurtzite
structure
an
average
size
51-66
nm,
iron
oxide
on
surface
hematite
23-28
nm.
According
to
EDX
data,
content
in
films
found
be
1.3-5.8
at.%.
The
optical
properties
studied,
band
gap
3.16-3.26
eV.
Gas-sensitive
at
150-300
°C
studied
using
wide
group
analyte
gases:
CO,
NH3,
H2,
CH4,
C6H6,
ethanol,
acetone,
NO2.
A
high
response
100
ppm
acetone
ethanol
225-300
selective
300-2000
ppb
NO2
175
established.
effect
humidity
magnitude
shape
signal
upon
detection
studied.
ACS Sensors,
Год журнала:
2024,
Номер
9(2), С. 895 - 911
Опубликована: Янв. 31, 2024
Due
to
its
stability,
transportability,
and
ability
be
produced
using
renewable
energy
sources,
NH3
has
become
an
attractive
option
for
hydrogen
production
storage.
Detecting
is
then
essential,
being
a
toxic
flammable
gas
that
can
pose
dangers
if
not
properly
monitored.
ZnO
chemiresistive
sensors
have
shown
great
potential
in
real
monitoring
applications;
yet,
research
development
this
area
are
ongoing
due
reported
limitations,
like
baseline
instabilities
sensitivity
environmental
factors,
including
temperature,
humidity,
interferent
gases.
Herein,
we
suggest
approach
obtain
with
competitive
performance
based
on
semiconducting
metal
oxides.
For
purpose,
one-dimensional
nanostructured
pure
La-doped
films
were
synthesized
hydrothermally.
Incorporating
large
rare
earth
ions,
La,
into
the
bulk
lattice
of
challenging
lead
surface
defects
influential
gas-sensing
reactions.
The
experienced
temperature-induced
p–n
shifting
at
about
100
°C,
verified
by
Hall
effect
AC
impedance
measurements.
doped
sensor
showed
exceptional
stepwise
stability
outstanding
relatively
low
operating
temperature
(150
°C)
sensing
response
91
best
(@
50
ppm
NH3)
recorded
tolerance
water
vapor
up
70%
RH.
Alongside
shifting,
enhanced
was
discussed
correlation
La
doping-triggered
changes
nanostructural
surfacial
properties
films.
We
validated
proposed
technique
producing
similar
performing
multiple
replicates
ensure
consistency
reproducibility.
also
introduced
fill
factor
concept
field
as
new
trustworthy
parameter
could
improve
assessment
help
rate
deviation
from
ideality.
Advanced Sensor and Energy Materials,
Год журнала:
2024,
Номер
3(2), С. 100093 - 100093
Опубликована: Фев. 24, 2024
The
advancement
of
gas
sensor
technology
over
the
past
decades
has
led
to
remarkable
progress
and
achievements
in
pollution
control
environmental
protection.
Compared
with
other
sensing
materials,
electrospun
nanofibers
have
attracted
significant
attention,
which
is
mainly
due
their
unique
characteristics,
including
but
not
limited
high
surface
area,
easy
structure
design,
facile
facility
setup,
multifunctional
properties,
etc.,
making
them
outstanding
candidates
for
potential
applications
this
field.
This
review
provides
an
overview
sensors,
concentrating
on
carbon
monoxide,
hydrogen,
dioxide,
hydrogen
sulfide,
ammonia,
nitrogen
oxides,
oxygen,
volatile
organic
compounds.
It
begins
a
brief
introduction
materials
advantages
along
ongoing
research.
principles
electrospinning
are
then
discussed.
Afterward,
corresponding
properties
diverse
sensors
thoroughly
reviewed.
Finally,
future
vision
regarding
challenges
perspectives
area
proposed.
extensive
comprehensive
reference
utilize
advanced
generate
novel
facilitating
performance
high-demand
areas.
ACS Sensors,
Год журнала:
2024,
Номер
9(1), С. 292 - 304
Опубликована: Янв. 12, 2024
As
a
common
environmental
pollutant
and
an
important
breath
biomarker
for
several
diseases,
it
is
essential
to
develop
hydrogen
sulfide
gas
sensor
with
low-ppb
level
detection
limit
prevent
harmful
exposure
allow
early
diagnoses
of
diseases
in
low-resource
settings.
Gold
doped/decorated
tungsten
trioxide
(Au-WO3)
nanofibers
various
compositions
crystallinities
were
synthesized
optimize
H2S-sensing
performance.
Systematically
experimental
results
demonstrated
the
ability
detect
1
ppb
H2S
response
value
(Rair/Rgas)
2.01
using
5
at
%
Au-WO3
average
grain
sizes
around
15
nm.
Additionally,
energy
barrier
difference
sensing
materials
air
nitrogen
(ΔEb)
power
law
exponent
(n)
determined
be
0.36
eV
0.7,
respectively,
450
°C
indicating
that
O–
predominately
ionic
oxygen
species
adsorption
significantly
altered
Schottky
between
grain.
Such
quantitative
analysis
provides
comprehensive
understanding
mechanism.
Critical Reviews in Analytical Chemistry,
Год журнала:
2024,
Номер
unknown, С. 1 - 18
Опубликована: Апрель 9, 2024
Electrochemical
sensors
have
been
the
subject
of
much
research
and
development
as
late,
with
several
publications
detailing
new
designs
boasting
enhanced
performance
metrics.
That
is,
without
a
doubt,
because
such
stand
out
from
other
analytical
tools
thanks
to
their
excellent
characteristics,
low
cost,
ease
use.
Their
progress
has
shown
trend
toward
seeking
novel
useful
nano
structure
materials.
A
variety
nanostructure
metal
oxides
utilized
in
creation
potentiometric
sensors,
which
are
this
article.
For
screen-printed
pH
sensing
layers
due
mixed
ion-electron
conductivity
paste-ion-selective
electrode
components
solid-contact
electrodes.
Further
significant
uses
include
layers.
All
oxide
mentioned
within
purview
Nanoscale
potential
potentiometry
method,
paper
summarizes
uses,
including
hybrid
materials
single-component
Potentiometric
outstanding
properties
can
be
manufactured
entirely
oxides.
These
outperform
more
traditional,
conventional
electrodes
terms
characteristics.
In
review,
we
looked
at
different
building
solutions
various
nanoscale
