eScience,
Год журнала:
2022,
Номер
2(6), С. 591 - 605
Опубликована: Ноя. 1, 2022
Electrochemiluminescence
(ECL)
has
been
widely
applied
in
imaging
owing
to
features
that
distinguish
it
from
other
microscopic
techniques
and
electrochemical
methods,
including
its
high
signal-to-noise
ratio,
remarkable
sensitivity,
wide
linear
range,
spatiotemporal
resolution,
near-zero
background
light.
Imaging
technology
based
on
ECL
used
the
fields
of
immunosensing,
pathological
cell
detection,
drug
analysis.
Additionally,
simple
operation
ability
detect
dynamic
processes
catalytic
sites
strengthen
potential
for
research
material
surfaces
interfaces,
vivo
biological
analysis,
visualization.
At
same
time,
emergence
a
variety
nanomaterials
new
analysis
equipment
further
promoted
development
high-resolution
technology.
This
paper
introduces
mechanisms
main
systems.
It
then
describes
various
forms
reviews
progress
single-particle
imaging,
fingerprint
structure
single-cell
imaging.
Finally,
authors
offer
their
views
about
prospects
ACS Applied Nano Materials,
Год журнала:
2022,
Номер
5(10), С. 14246 - 14250
Опубликована: Окт. 5, 2022
Electrochemical
nitrite
(NO2–)
reduction
is
a
promising
approach
for
ambient
ammonia
(NH3)
synthesis
and
simultaneous
mitigation
of
NO2–
contaminant
in
wastewater.
Herein,
we
report
Ni
nanoparticle
supported
on
molasses-derived
carbon
sheets
(Ni@MDC)
as
an
earth-abundant
electrocatalyst
NO2–-to-NH3
conversion.
When
tested
alkaline
solutions
with
0.1
M
NO2–,
such
Ni@MDC
obtains
high
NH3
yield
6.3
mg
h–1
mgcat–1
Faradaic
efficiency
65.4%
at
−0.8
V
versus
reversible
hydrogen
electrode
under
conditions.
Furthermore,
it
shows
remarkable
electrochemical
stability
during
long-term
electrolysis
cycling
tests.
Journal of the American Chemical Society,
Год журнала:
2023,
Номер
145(49), С. 26678 - 26687
Опубликована: Дек. 5, 2023
Nitrate
electroreduction
(NO3RR)
holds
promise
as
an
energy-efficient
strategy
for
the
removal
of
toxic
nitrate
to
restore
natural
nitrogen
cycle
and
mitigate
adverse
impacts
caused
by
overfertilization
from
suboptimal
agricultural
practices.
However,
existing
catalysts
suffer
limited
electrocatalytic
activity,
poor
selectivity,
inadequate
durability,
low
scalability.
To
address
this
quadrilemma,
in
study,
we
developed
a
cost-effective
layered
double
hydroxide
(LDH)
electrocatalyst
with
lamellar
structure
that
presents
trimetallic
CuCoAl
active
sites
on
nanomaterial
surface.
This
codoping
design
enabled
electrochemical
upcycling
into
ammonia
exclusively
efficiently
onset
potential
at
0
V
vs
RHE,
where
process
is
less
energy
intensive
has
lower
carbon
footprint
than
conventional
The
synergistic
interaction
among
Cu,
Co,
Al
further
afforded
99.5%
Faradic
efficiency
(FE)
yield
rate
0.22
mol
h-1
g-1
nitrate-to-ammonia
electroreduction,
surpassing
performance
state-of-the-art
nonprecious
metal
NO3RR
electrocatalysts
over
extended
operation
period.
gain
insights
origin
catalytic
observed
LDH,
control
materials
were
employed
elucidate
roles
Cu
Co.
was
found
improve
despite
displaying
FE
synthesis,
while
Co
discovered
suppress
formation
nitrite
byproduct
though
requiring
large
overpotential.
Simulated
wastewater
containing
phosphate
sulfate,
which
are
typically
present
industrial
effluents,
used
investigate
effect
electrolytes
NO3RR.
Intriguingly,
use
buffer
resulted
superior
production
simultaneously
inhibiting
compared
sulfate
case.
These
experimental
findings
supported
density
functional
theory
(DFT)
calculations,
explored
adsorption
strength
adducts
adjacent
coadsorbed
LDH
Additionally,
relative
free
energies
species
also
computed
examine
proton-coupled
electron
transfer
(PCET)
mechanism
shedding
light
potential-dependent
step
(PDS)
exclusive
selectivity
conversion.
here
offers
scalability
eliminating
need
precious
metals,
rendering
earth-abundant
catalyst
particularly
appealing
sustainable
electrovalorization
technology.
ACS Sustainable Chemistry & Engineering,
Год журнала:
2023,
Номер
11(21), С. 7965 - 7985
Опубликована: Май 16, 2023
Excessive
discharge
of
nitrate
pollutants
has
caused
an
imbalance
in
the
nitrogen
cycle,
which
threatened
human
health
and
ecosystems.
Clean
electrocatalytic
reduction
technology
can
convert
into
high
value-added
ammonia
to
control
water
pollution,
truly
realizing
"turning
waste
treasure".
This
review
highlights
latest
mechanisms
proposed
by
combining
situ
characterization
discusses
various
intermediates
produced
during
reaction
process
key
steps
that
determine
rate.
Meanwhile,
four
common
catalyst
synthesis
strategies
are
systematically
summarized.
These
have
exhibited
preeminent
results
terms
conductivity
active
sites
inhibition
side
effects.
Finally,
challenges
difficulty
(NRA)
development
main
direction
future
discussed.
The
engineering
for
increasing
stability
performance
also
aims
provide
guidance
efficient
conversion
promotes
advancement
sustainable
chemistry.
Inorganic Chemistry Frontiers,
Год журнала:
2023,
Номер
10(5), С. 1431 - 1435
Опубликована: Янв. 1, 2023
An
Ag
nanoparticle-decorated
TiO
2
nanoribbon
array
on
a
titanium
plate
performs
efficiently
in
electrocatalytic
NO
−
reduction
to
NH
3
,
achieving
large
yield
of
8743.1
μg
h
−1
cm
−2
with
high
faradaic
efficiency
96.4%.
Electroreduction
of
nitrite
(NO2-
)
to
valuable
ammonia
(NH3
offers
a
sustainable
and
green
approach
for
NH3
synthesis.
Here,
Cu3
P@TiO2
heterostructure
is
rationally
constructed
as
an
active
catalyst
selective
NO2-
-to-NH3
electroreduction,
with
rich
nanosized
P
anchored
on
TiO2
nanoribbon
array
Ti
plate
(Cu3
/TP).
When
performed
in
the
0.1
m
NaOH
NaNO2
,
/TP
electrode
obtains
large
yield
1583.4
µmol
h-1
cm-2
high
Faradaic
efficiency
97.1%.
More
importantly,
also
delivers
remarkable
long-term
stability
50
h
electrolysis.
Theoretical
calculations
indicate
that
intermediate
adsorption/conversion
processes
interfaces
are
synergistically
optimized,
substantially
facilitating
conversion
.
Chemical Communications,
Год журнала:
2023,
Номер
59(12), С. 1625 - 1628
Опубликована: Янв. 1, 2023
Electrochemical
nitrite
(NO2-)
reduction
is
a
potential
and
sustainable
route
to
produce
high-value
ammonia
(NH3),
but
it
requires
highly
active
electrocatalysts.
Herein,
Cu
nanoparticles
anchored
on
TiO2
nanobelt
array
titanium
plate
(Cu@TiO2/TP)
are
reported
as
high-efficiency
electrocatalyst
for
NO2--to-NH3
conversion.
The
designed
Cu@TiO2/TP
catalyst
exhibits
outstanding
catalytic
performance
toward
the
NO2-RR,
with
high
NH3
yield
of
760.5
μmol
h-1
cm-2
(237.7
mgcat.-1)
an
excellent
faradaic
efficiency
95.3%
in
neutral
solution.
Meanwhile,
also
presents
strong
electrochemical
stability
during
cyclic
tests
long-term
electrolysis.
Abstract
Ammonia,
a
vital
component
in
the
synthesis
of
fertilizers,
plastics,
and
explosives,
is
traditionally
produced
via
energy‐intensive
environmentally
detrimental
Haber–Bosch
process.
Given
its
considerable
energy
consumption
significant
greenhouse
gas
emissions,
there
growing
shift
toward
electrocatalytic
ammonia
as
an
eco‐friendly
alternative.
However,
developing
efficient
electrocatalysts
capable
achieving
high
selectivity,
Faraday
efficiency,
yield
under
ambient
conditions
remains
challenge.
This
review
delves
into
decades‐long
research
synthesis,
highlighting
evolution
fundamental
principles,
theoretical
descriptors,
reaction
mechanisms.
An
in‐depth
analysis
nitrogen
reduction
(NRR)
nitrate
(NitRR)
provided,
with
focus
on
their
electrocatalysts.
Additionally,
theories
behind
electrocatalyst
design
for
are
examined,
including
Gibbs
free
approach,
Sabatier
principle,
d
‐band
center
theory,
orbital
spin
states.
The
culminates
comprehensive
overview
current
challenges
prospective
future
directions
development
NRR
NitRR,
paving
way
more
sustainable
methods
production.
