Gas
sensors
based
on
semiconductor
metal
oxides
are
identified
as
a
highly
promising
candidate
for
toxic
gas
detection,
yet
they
still
suffer
from
high
operating
temperature
due
to
low
surface
activity
at
temperature.
To
address
this
issue,
we
present
an
elaborate
design
the
homogeneous
functionalization
of
ZIF-L(Co)
derived
cobalt
(Co)
catalysts
into
hollow
In2O3
frameworks,
aiming
activate
redox
capacity
and
catalytic
efficacy
sensor
HCHO
gas.
Benefiting
Co
doping
boosts
generates
abundant
oxygen
vacancies,
optimized
1
wt%
Co-doped
HNFs
exhibits
response
40.4
toward
100
ppm
moderately
180
℃,
which
is
4
times
higher
than
that
pristine
HNFs.
Moreover,
has
virtues
selectivity
excellent
long-term
stability
sensing.
This
study
highlights
important
influence
catalyst
modulation
active
sites
oxides-based
sensors,
inspiring
development
cost-effective
indoor
hazardous
monitoring.
Small,
Journal Year:
2023,
Volume and Issue:
20(22)
Published: Dec. 19, 2023
Abstract
Atomically
dispersed
metal
and
nitrogen
co‐doped
carbon
catalysts
(M‐N‐C)
have
been
attracting
tremendous
attentions
thanks
to
their
unique
MN
x
active
sites
fantastic
catalytic
activities
in
advanced
oxidation
technologies
(AOTs)
for
water
remediation.
However,
precisely
tailoring
the
microenvironment
of
at
atomic
level
is
still
an
intricate
challenge
so
far,
understanding
non‐radical
mechanisms
persulfate
activation
exists
many
uncertainties.
In
this
review,
latest
developments
on
modulation
strategies
atomically
M‐N‐C
including
regulation
central
atoms,
coordination
numbers,
heteroatoms,
synergy
between
single‐atom
(SACs)
with
species
are
systematically
highlighted
discussed.
Afterwards,
progress
underlying
limitations
about
typical
pathways
from
production
singlet
oxygen,
electron
transfer
mechanism
generation
high‐valent
well
demonstrated
inspire
intrinsic
insights
M‐N‐C/persulfate
systems.
Lastly,
perspectives
remaining
challenges
opportunities
further
development
carbon‐based
SACs
environment
remediation
also
pointed
out.
It
believed
that
review
will
be
much
valuable
design
systems
promote
wide
application
various
fields.
Inorganic Chemistry,
Journal Year:
2024,
Volume and Issue:
63(15), P. 7071 - 7079
Published: April 1, 2024
Spatial
confinement
of
organic
pollutants
and
reactive
oxygen
species
(e.g.,
SO4•–
•OH)
with
ultrashort
lifetime
inside
the
scale
chemical
theoretical
diffusion
could
provide
a
greatly
promising
strategy
to
overcome
limitation
mass
transfer
in
heterogeneous
Fenton-like
oxidation
process.
Herein,
we
first
reported
spatial
cobalt
nanoparticles
N-doped
carbon
nanorods
(Co-NCNRs),
by
encapsulating
Co
into
nanorods,
activating
CaSO3
for
antibiotic
degradation.
Compared
Na2SO3
NaHSO3,
slowly
persistently
discharge
SO32–
due
its
low
solubility,
thus
avoiding
depletion
generated
SO3•–
•OH
under
high
concentration
sulfite
ions.
Fully
physical
characterizations
confirmed
that
3D
hydrogel
was
mostly
transformed
nanorod
structure
Co-NCNRs
at
550
°C.
atoms
were
successfully
nanoconfined
which
contributes
prevents
agglomeration
nanoparticles,
enhancing
catalytic
activity
stability
water
decontamination.
The
performance,
kinetic
research,
influences
inorganic
anions,
pH,
degradation
mechanism
chlortetracycline
catalyzed
Co-NCNRs/CaSO3
system
have
been
studied
detail.
This
work
not
only
proposed
facile
method
synthesis
catalyst
but
also
provided
an
excellent
wastewater
treatment.
Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
A
cascade
anchoring
strategy
was
developed
to
construct
Ni–NC
single
atom
catalysts
with
high-density
Ni–N
4
sites,
enabling
an
excellent
Fenton-like
catalytic
performance.
