Hybrid Advances,
Год журнала:
2023,
Номер
5, С. 100128 - 100128
Опубликована: Дек. 12, 2023
Nanotechnology,
which
focuses
on
creating
and
applying
materials
at
the
nanoscale
(ranging
from
1
to
100
nm),
opens-up
a
realm
of
possibilities.
Nanoparticles,
known
for
their
minuscule
size
exceptional
surface
area-to-volume
ratio,
exhibit
distinct
physical
chemical
attributes
compared
bulk
materials.
Green
zinc
oxide
nanoparticles,
among
myriad
metal-oxide
have
gained
significant
attention
due
broad
applicability,
showcasing
antibacterial,
anti-inflammatory,
antioxidant,
optical
properties.
This
is
attributed
expansive
bandwidth
elevated
exciton
binding
energy.
In
this
comprehensive
study,
we
investigate
intricacies
nanoparticle
synthesis,
uncovering
biological
processes
that
underscore
unique
features
applications,
especially
in
photocatalysis.
Various
synthesis
methods,
including
sol-gel,
hydrothermal,
precipitation
techniques,
are
scrutinized
efficacy
tailoring
shape
nanoparticles.
exploration
not
only
provides
insights
into
mechanical
nanoparticles
formation
but
also
evaluates
potential
advancing
fields
such
as
antibacterial
treatments
optoelectronic
applications.
The
novelty
work
lies
meticulous
examination
diverse
methods
presenting
understanding
intricacies.
Moreover,
study
digs
photocatalysis,
exploring
how
can
revolutionize
field
with
Through
exploration,
aim
unravel
shed
light
limitations
various
providing
roadmap
future
research
development
nanotechnology.
Inorganic Chemistry Frontiers,
Год журнала:
2023,
Номер
10(12), С. 3489 - 3514
Опубликована: Янв. 1, 2023
Ammonia
(NH3)
is
an
essential
raw
material
in
the
production
of
fertilizers
and
a
promising
carbon-free
energy
carrier,
however,
its
synthesis
still
depends
on
energy-
capital-intensive
Haber–Bosch
process.
Recently,
electrochemical
N2
reduction
reaction
has
attracted
significant
interest
as
emerging
method
for
NH3
under
ambient
conditions.
However,
limited
solubility
aqueous
electrolyte
strong
NN
bonds
result
low
yield
rate,
inferior
faradaic
efficiency
unsatisfactory
selectivity,
impeding
further
practical
application.
Considering
high
water
nitrate
(NO3−),
NO3−
(NO3−RR)
become
fascinating
route
achieving
sustainable
NH3,
enormous
progress
been
made
this
field.
As
consequence,
review
discusses
mechanism
systematically
summarizes
recent
development
electrocatalysts
NO3−RR,
including
noble-metal-based
materials,
single-atom
metal
catalysts,
transition-metal-based
catalysts.
Diverse
design
strategies
catalysts
to
boost
NO3−RR
performance,
such
defect
engineering,
rational
structure
design,
strain
engineering
constructing
heterostructures,
are
discussed.
This
followed
by
illustration
how
robust
understanding
optimization
affords
fundamental
insights
into
efficiency,
selectivity
electrocatalysts.
Finally,
we
conclude
with
future
perspectives
critical
issues,
challenges
research
directions
high-efficiency
selective
NH3.
ACS Catalysis,
Год журнала:
2023,
Номер
13(16), С. 10846 - 10854
Опубликована: Авг. 2, 2023
Electrocatalytic
nitrate
reduction
reaction
(NO3–RR)
opens
opportunities
for
ammonia
production.
The
sluggish
kinetics
of
this
multielectron
and
multiproton
process
has
been
regarded
as
the
key
issue.
Herein,
we
report
a
Cu1Co5
alloy
electrocatalytic
NO3–RR
to
NH3.
It
achieves
high
current
density
(453
mA
cm–2)
Faradaic
efficiency
(96.2%)
NH3
production
at
0.075
V
vs
RHE,
with
half-cell
energy
44.9%,
higher
than
those
Cu,
Co,
other
Co-based
alloys,
is
among
highest
value
reported.
We
found
that
interaction
between
Cu
Co
reorganizes
their
electronic
structure
in
alloys.
NO3–
adsorption
switches
spontaneous
process,
*NO
→
*N
*NH
*NH2
processes
are
promoted.
Importantly,
water
dissociation
concerted
transformation
N-species
proven
be
rate-determining,
which
facilitated
on
sites
essential
enhanced
NO3–RR.
This
inspires
us
strategy
designing
more
efficient
catalysts
under
alkaline
condition
by
promoting
H2O
process.
Atmosphere,
Год журнала:
2023,
Номер
14(3), С. 584 - 584
Опубликована: Март 17, 2023
The
shipping
industry
has
reached
a
higher
level
of
maturity
in
terms
its
knowledge
and
awareness
decarbonization
challenges.
Carbon-free
or
carbon-neutralized
green
fuel,
such
as
hydrogen,
ammonia,
methanol,
are
being
widely
discussed.
However,
little
attention
paid
to
the
fuel
pathway
from
renewable
energy
shipping.
This
paper,
therefore,
provides
review
production
methods
for
power
(green
methanol)
analyzes
potential
application
shows
that
methanol
(1)
hydrogen
seawater
electrolysis
using
power;
(2)
ammonia
+
Haber–Bosch
process;
(3)
CO2
power.
While
future
is
bright,
short
term,
costs
expected
be
than
conventional
fuel.
Our
recommendations
therefore
follows:
improve
technology
reduce
cost;
develop
electrochemical
increase
efficiency
production;
explore
new
technology.
Strengthening
research
development
expanding
capacity
ensure
an
adequate
supply
low-
zero-emission
marine
important
factors
achieve
carbon
reduction
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(11)
Опубликована: Янв. 23, 2024
Abstract
During
the
electrocatalytic
NO
3
−
reduction
reaction
(NO
RR)
under
neutral
condition,
activation
of
H
2
O
to
generate
H*
and
inhibition
inter‐H*
species
binding,
are
critically
important
but
remain
challenging
for
suppressing
non‐desirable
hydrogen
evolution
(HER).
Here,
a
Mn‐doped
Co(OH)
(named
as
Mn‐Co(OH)
)
has
been
synthesized
by
in
situ
reconstruction
electrolyte,
which
is
able
dissociate
molecules
inhibits
binding
between
each
other
owing
increased
interatomic
spacing
Mn‐doping.
The
electrocatalyst
offers
faradaic
efficiency
(FE)
high
98.9±1.7%
at
−0.6
V
vs.
reversible
electrode
(RHE)
an
energy
(EE)
49.90±1.03%
NH
production
RR,
among
highest
recently
reported
state‐of‐the‐art
catalysts
electrolyte.
Moreover,
negligible
degradation
−200
mA
cm
−2
found
least
500
h,
longest
catalytic
durations
ever
reported.
This
work
paves
novel
approach
design
synthesis
efficient
RR
electrocatalysts.
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.
