Advanced Functional Materials,
Год журнала:
2023,
Номер
34(8)
Опубликована: Ноя. 5, 2023
Abstract
Nitrite
(NO
2
−
)
and
hydrazine
(N
H
4
are
common
N‐pollutants
in
groundwater.
The
electrochemical
method
can
realize
the
treatment
of
synthesis
energy
substance
ammonia
(NH
3
).
Designing
synthesizing
efficient
electrocatalysts
is
great
significance.
Herein,
ultrathin
Co
0.5
NiS
nanosheets
attached
on
nickel
foam
(Co
NiS‐NSs/NF)
synthesized
via
cyanogel‐NaBH
hydrolysis
process
succedent
sulfurization
approach.
Owing
to
nanosheet
structure
interaction
between
Ni
Co,
NiS‐NSs/NF
exhibits
high
activity
for
NO
reduction
reaction
RR),
which
Faraday
efficiency
92.2%
NH
yield
0.25
mmol
h
−1
cm
−2
at
−0.15
V
potential.
Meanwhile,
also
displays
remarkable
N
oxidation
KOH
electrolyte.
Therefore,
a
symmetrical
NiS‐NSs/NF||Co
electrolyzer
assembled,
only
needs
operating
voltage
0.36
reach
10
mA
‐to‐NH
conversion
presence
.
This
work
reports
promising
strategy
production
small
N‐pollutants.
Advanced Functional Materials,
Год журнала:
2023,
Номер
33(43)
Опубликована: Июнь 25, 2023
Abstract
Ammonia
as
an
irreplaceable
chemical
has
been
widely
demanded
to
keep
the
sustainable
development
of
modern
society.
However,
its
industrial
production
consumes
huge
energy
and
releases
extraordinary
green‐house
gases,
leading
various
environmental
issues.
To
achieve
green
ammonia
is
a
great
challenge
that
extensively
pursued
recently.
In
review,
most
promising
strategy,
electrochemical
nitrate
reduction
reaction
(e‐NO
3
RR)
for
purpose
comprehensively
investigated
give
full
understanding
mechanism
provide
guidance
future
directions.
Particularly,
electrocatalysts
focused
realize
high
yield
rate
Faraday
efficiency
applications.
The
recent‐developed
catalysts,
including
noble
metallic
materials,
alloys,
metal
compounds,
single‐metal‐atom
metal‐free
are
systematically
discussed
review
effects
factors
on
catalytic
performance
in
e‐NO
RR.
Accordingly,
strategies,
defects
engineering,
coordination
environment
modulating,
surface
controlling,
hybridization,
carefully
improve
performance,
such
intrinsic
activity
selectivity.
Finally,
perspectives
challenges
given
out.
This
shall
insightful
advanced
systems
efficiently
industry.
ACS Sustainable Chemistry & Engineering,
Год журнала:
2024,
Номер
12(7), С. 2783 - 2789
Опубликована: Фев. 2, 2024
Electrochemical
nitrite-to-ammonia
reduction
(NO2RR)
holds
great
promise
for
converting
harmful
NO2–
into
valuable
NH3.
Herein,
we
develop
Co
single
atoms
dispersed
on
a
C3N4
substrate
(Co1/C3N4)
as
an
efficient
catalyst
toward
the
NO2RR.
Experimental
and
theoretical
investigations
reveal
that
single-atom
sites
can
effectively
active
optimize
formation
energy
of
key
*NOH
intermediate
to
promote
→
NH3
energetics.
Remarkably,
Co1/C3N4
equipped
in
flow
cell
delivers
exceptional
NH3–Faradaic
efficiency
97.9%
yield
rate
1080.3
μmol
h–1cm–2
at
industrial-level
current
density
355
mA
cm–2,
along
with
long-term
durability
100
h
electrolysis,
showing
considerable
potential
practical
electrosynthesis.
Energy & Fuels,
Год журнала:
2024,
Номер
38(8), С. 6701 - 6722
Опубликована: Апрель 8, 2024
Electrochemical
nitrate
reduction
is
the
process
of
converting
into
ammonia
or
nitrogen
using
electric
energy.
This
saves
energy,
protects
environment,
and
an
important
technology
for
resource
recovery
water
purification.
paper
examines
recent
advances
in
electrochemical
research
analyzes
reaction
mechanism
path
as
well
influence
various
factors
on
through
thermodynamic
kinetic
principles.
Second,
catalytic
performances
transition
metal
electrocatalysts
form
single
metals,
alloys,
oxides,
composites
are
analyzed
detail,
which
lays
foundation
rational
development
new,
efficient,
stable
electrocatalysts.
Finally,
future
directions
prospects
envisioned.
Analytical Chemistry,
Год журнала:
2024,
Номер
96(8), С. 3645 - 3654
Опубликована: Фев. 15, 2024
Accurate
measurement
of
cancer
markers
in
urine
is
a
convenient
method
for
tumor
monitoring.
However,
the
concentration
so
low
that
it
difficult
to
achieve
their
measurement.
Photoelectrochemical
(PEC)
sensors
are
promising
technology
realize
detection
trace
due
high
sensitivity.
Currently,
interference
nonspecific
biomolecules
main
reason
affecting
sensitivity
and
selectivity
PEC
detecting
markers.
In
this
work,
strategy
oxygen
vacancy
(OV)
modulation
proposed
construct
fouling-resistant
aptamer
sensing
platform
α-fetoprotein
(AFP),
liver
marker.
The
introduction
OVs
induces
formation
intermediate
localized
states
photoelectric
material,
which
not
only
facilitates
separation
photogenerated
carriers
but
also
leads
redshift
light
absorption
edge.
More
importantly,
with
positive
electrical
properties
can
be
employed
modify
antifouling
layer
(C-PEG)
negatively
charged
groups
through
an
electrostatic
interaction.
synergistic
effect
OVs,
layer,
resulted
TiO2/OVs/C-PEG-based
sensor
achieves
wide
linear
range
from
1
pg/mL
100
ng/mL
limit
0.3
AFP.
addition,
successfully
realized
determination
AFP
samples
accurately
differentiated
between
normal
people
patients
early
advanced
stages.
This
project
great
significance
advancing
application
photoelectrochemical
bioanalytical
by
investigating
construction
OVs-regulated
interface.
