Advanced Materials,
Год журнала:
2024,
Номер
36(26)
Опубликована: Апрель 14, 2024
Electrocatalytic
nitrate
reduction
reaction
(NitRR)
in
neutral
condition
offers
a
promising
strategy
for
green
ammonia
synthesis
and
wastewater
treatment,
the
rational
design
of
electrocatalysts
is
cornerstone.
Inspired
by
modern
factory
where
both
machines
logistics
matter
manufacturing,
it
reported
that
cobalt
phosphide
(CoP)
nanoparticles
embedded
zinc-based
zeolite
imidazole
frameworks
(Zn-ZIF)
function
as
nanofactory
with
high
performance.
By
selective
phosphorization
ZnCo
bimetallic
framework
(ZnCo-ZIF),
generated
CoP
act
"machines"
(active
sites)
molecular
manufacturing
(NO
Advanced Materials,
Год журнала:
2023,
Номер
36(17)
Опубликована: Июнь 9, 2023
Natural
nitrogen
cycle
has
been
severely
disrupted
by
anthropogenic
activities.
The
overuse
of
N-containing
fertilizers
induces
the
increase
nitrate
level
in
surface
and
ground
waters,
substantial
emission
oxides
causes
heavy
air
pollution.
Nitrogen
gas,
as
main
component
air,
used
for
mass
ammonia
production
over
a
century,
providing
enough
nutrition
agriculture
to
support
world
population
increase.
In
last
decade,
researchers
have
made
great
efforts
develop
processes
under
ambient
conditions
combat
intensive
energy
consumption
high
carbon
associated
with
Haber-Bosch
process.
Among
different
techniques,
electrochemical
reduction
reaction
(NO
Advanced Energy Materials,
Год журнала:
2023,
Номер
13(31)
Опубликована: Июнь 29, 2023
Abstract
Transition
metal‐based
oxyhydroxides
(MOOH)
derived
from
the
irreversible
structural
reconstruction
of
precatalysts
are
often
acknowledged
as
real
catalytic
species
for
oxygen
evolution
reaction
(OER).
Typically,
reconstruction‐derived
MOOH
would
exhibit
superior
OER
activity
compared
to
their
directly
synthesized
counterparts,
despite
being
fundamentally
similar
in
chemistry.
As
such,
has
emerged
a
promising
strategy
boost
electrocatalysts.
However,
in‐depth
understanding
origin
reconstructed
materials
still
remains
ambiguous,
which
significantly
hinders
further
developments
highly
efficient
electrocatalysts
based
on
In
this
review,
comprehensive
overview
behaviors
reported
is
provided
and
intrinsic
chemical
origins
high
efficiency
toward
unveiled.
The
fundamentals
mechanisms,
along
with
recommended
characterization
techniques
dynamic
process
analyzing
structure
also
interpreted.
Finally,
view
chemistry,
potential
perspectives
facilitate
design
synthesis
durable
electrocatalyst
presented.
Energy & Environmental Science,
Год журнала:
2023,
Номер
16(6), С. 2696 - 2704
Опубликована: Янв. 1, 2023
An
HCHO
oxidation
reaction
for
electrocatalytic
ammonia
synthesis
was
developed
to
replace
the
sluggish
anodic
oxygen
evolution
involving
oxidative
dehydrogenation
and
tandem
pathways.
ACS Nano,
Год журнала:
2023,
Номер
17(13), С. 12422 - 12432
Опубликована: Июнь 26, 2023
Integrating
the
nitrate
reduction
reaction
(NO3RR)
with
polyethylene
terephthalate
(PET)
hydrolysate
oxidation
to
construct
nitrate/PET
coelectrolysis
system
holds
a
great
promise
of
realizing
simultaneous
upcycling
wastewater
and
PET
plastic
waste,
which,
however,
is
still
an
almost
untouched
research
area.
Herein,
we
develop
ultralow
content
Ru-incorporated
Co-based
metal-organic
frameworks
as
bifunctional
precatalyst,
which
can
be
in
situ
reconstructed
Ru-Co(OH)2
at
cathode
Ru-CoOOH
anode
under
electrocatalytic
environments,
function
real
active
catalysts
for
NO3RR
oxidation,
respectively.
With
two-electrode
system,
current
density
50
mA
cm-2
achieved
cell
voltage
only
1.53
V,
production
ammonia
formate
lower
energy
consumption.
This
study
provides
concept
construction
systems
waste.
Nature Communications,
Год журнала:
2024,
Номер
15(1)
Опубликована: Апрель 1, 2024
Abstract
Nitrate
can
be
electrochemically
degraded
to
produce
ammonia
while
treating
sewage
it
remains
grand
challenge
simultaneously
realize
high
Faradaic
efficiency
and
production
rate
over
wide-range
concentrations
in
real
wastewater.
Herein,
we
report
the
defect-rich
Cu
nanowire
array
electrode
generated
by
in-situ
electrochemical
reduction,
exhibiting
superior
performance
nitrate
reduction
reaction
benefitting
from
triple
synergistic
modulation.
Notably,
delivers
current
density
ranging
50
1100
mA
cm
−2
across
wide
(1–100
mM)
with
90%.
Operando
Synchrotron
radiation
Fourier
Transform
Infrared
Spectroscopy
theoretical
calculations
revealed
that
defective
sites
enhance
adsorption,
promote
water
dissociation
suppress
hydrogen
evolution.
A
two-electrode
system
integrating
industrial
wastewater
glycerol
oxidation
achieves
of
550
at
−1.4
V
99.9%
selectivity
conversion
100
h
stability,
demonstrating
outstanding
practicability.
Environmental Science & Technology,
Год журнала:
2023,
Номер
57(28), С. 10458 - 10466
Опубликована: Июнь 30, 2023
The
growth
of
renewable
energy
industries
and
the
ongoing
need
for
fertilizer
in
agriculture
have
created
a
sustainable
production
ammonia
(NH3)
using
low-cost,
environment-friendly
techniques.
electrocatalytic
nitrate
(NO3–)
reduction
reaction
(NO3RR)
has
potential
to
improve
both
management
environmental
nitrogen
recycling
synthetic
nutrients.
However,
NO3RR
is
frequently
hindered
by
incomplete
NO3–
conversion,
sluggish
kinetics,
suppression
hydrogen
evolution
(HER).
Inspired
specific
local
electronic
structures
that
are
adjustable
single-atom
catalysts,
this
work
presents
nanohybrid
filter
with
iron
single
atoms
(FeSA)
immobilized
on
MXene.
fabricated
FeSA/MXene
exhibited
maximum
NH3
Faradaic
efficiency
selectivity
(82.9
99.2%,
respectively)
were
higher
than
those
filters
made
Fe
nanoparticles
anchored
MXene
(FeNP/MXene)
(69.2
81.3%,
alone
(32.8
52.4%,
respectively),
measured
at
an
initial
pH
7
applied
−1.4
V
vs
Ag/AgCl.
Density
functional
theory
calculations
revealed
that,
compared
FeNP/MXene
filter,
prevented
competition
from
HER
reduced
activation
potential-limiting
step
(*NO
*NHO)
synthesis
thermodynamically
favorable
.
This
highlights
alternative
strategy
achieving
synergistic
removal
nutrient
recovery
durable
catalytic
activity
stability.
