Nanomaterials,
Journal Year:
2024,
Volume and Issue:
14(8), P. 719 - 719
Published: April 19, 2024
Nowadays,
metal
oxide
semiconductor
gas
sensors
have
diverse
applications
ranging
from
human
health
to
smart
agriculture
with
the
development
of
Internet
Things
(IoT)
technologies.
However,
high
operating
temperatures
and
an
unsatisfactory
detection
capability
(high
sensitivity,
fast
response/recovery
speed,
etc.)
hinder
their
integration
into
IoT.
Herein,
a
ternary
heterostructure
was
prepared
by
decorating
WO3
nanoplates
Au
SnO2
nanoparticles
through
facial
photochemical
deposition
method.
This
employed
as
sensing
material
for
3-hydroxy-2-butanone
(3H-2B),
biomarker
Listeria
monocytogenes.
These
Au/SnO2–WO3
nanoplate-based
exhibited
excellent
response
(Ra/Rg
=
662)
25
ppm
3H-2B,
which
24
times
higher
than
that
pure
at
140
°C.
Moreover,
3H-2B
sensor
showed
ultrafast
recovery
speed
well
selectivity.
performances
could
be
attributed
rich
active
interfaces
transport
carriers
in
nanoplates.
Furthermore,
wireless
portable
equipped
assembled,
tested
using
known
concentrations
study
possibilities
real-time
monitoring
food
quality
safety.
Small,
Journal Year:
2023,
Volume and Issue:
20(8)
Published: Oct. 12, 2023
Abstract
Amelioration
of
nickel‐cobalt
layered
double
hydroxides
(NiCo‐LDH)
with
a
high
specific
theoretical
capacitance
is
great
desire
for
high‐power
supercapacitors.
Herein,
molybdenum
(Mo)
doping
strategy
proposed
to
improve
the
charge‐storage
performance
NiCo‐LDH
nanosheets
growing
on
carbon
cloth
(CC)
via
rapid
microwave
process.
The
regulation
electronic
structure
and
oxygen
vacancy
LDH
consolidated
by
density
functional
theory
(DFT)
calculation,
which
demonstrates
that
Mo
narrows
band
gap,
reduces
formation
energy
hydroxyl
vacancies,
promotes
ionic
charge
transfer
as
well
electrolyte
adsorption
electrode
surface.
optimal
Mo‐doped
(MoNiCo‐LDH‐0.05/CC)
has
an
amazing
capacity
471.1
mA
h
g
−1
at
1
A
,
excellent
retention
84.8%
32
far
superior
NiCo‐LDH/CC
(258.3
76.4%).
constructed
hybrid
supercapacitor
delivers
103.3
W
kg
power
750
retains
cycle
85.2%
after
5000
cycles.
Two
assembled
devices
in
series
can
drive
thirty
LED
lamps,
revealing
potential
application
prospect
rationally
synthesized
MoNiCo‐LDH/CC
energy‐storage
material.
Advanced Science,
Journal Year:
2024,
Volume and Issue:
11(33)
Published: July 1, 2024
Abstract
Modifying
the
coordination
or
local
environments
of
single‐,
di‐,
tri‐,
and
multi‐metal
atom
(SMA/DMA/TMA/MMA)‐based
materials
is
one
best
strategies
for
increasing
catalytic
activities,
selectivity,
long‐term
durability
these
materials.
Advanced
sheet
supported
by
metal
atom‐based
have
become
a
critical
topic
in
fields
renewable
energy
conversion
systems,
storage
devices,
sensors,
biomedicine
owing
to
maximum
utilization
efficiency,
precisely
located
centers,
specific
electron
configurations,
unique
reactivity,
precise
chemical
tunability.
Several
offer
excellent
support
are
attractive
applications
energy,
medical
research,
such
as
oxygen
reduction,
production,
hydrogen
generation,
fuel
selective
detection,
enzymatic
reactions.
The
strong
metal–metal
metal–carbon
with
metal–heteroatom
(i.e.,
N,
S,
P,
B,
O)
bonds
stabilize
optimize
electronic
structures
atoms
due
interfacial
interactions,
yielding
activities.
These
provide
models
understanding
fundamental
problems
multistep
This
review
summarizes
substrate
structure‐activity
relationship
different
active
sites
based
on
experimental
theoretical
data.
Additionally,
new
synthesis
procedures,
physicochemical
characterizations,
biomedical
discussed.
Finally,
remaining
challenges
developing
efficient
SMA/DMA/TMA/MMA‐based
presented.
Dalton Transactions,
Journal Year:
2024,
Volume and Issue:
53(7), P. 3224 - 3235
Published: Jan. 1, 2024
The
1Pt/WZ-2
hollow
sphere
has
a
high
response
of
842
for
50
ppm
TEA
at
100
°C
and
good
selectivity,
providing
an
efficient
composite
synthesis
method
gas
detection.
