iScience,
Год журнала:
2023,
Номер
26(7), С. 107100 - 107100
Опубликована: Июнь 16, 2023
Electrochemical
reduction
of
nitrite
(NO2-)
can
satisfy
the
necessity
for
NO2-
contaminant
removal
and
deliver
a
sustainable
pathway
ammonia
(NH3)
generation.
Its
practical
application
yet
requires
highly
efficient
electrocatalysts
to
boost
NH3
yield
Faradaic
efficiency
(FE).
In
this
study,
CoP
nanoparticle-decorated
TiO2
nanoribbon
array
on
Ti
plate
(CoP@TiO2/TP)
is
verified
as
high-efficiency
electrocatalyst
selective
NH3.
When
measured
in
0.1
M
NaOH
with
NO2-,
freestanding
CoP@TiO2/TP
electrode
delivers
large
849.57
μmol
h-1
cm-2
high
FE
97.01%
good
stability.
Remarkably,
subsequently
fabricated
Zn-NO2-
battery
achieves
power
density
1.24
mW
while
delivering
714.40
μg
cm-2.
Deleted Journal,
Год журнала:
2022,
Номер
1, С. e9120010 - e9120010
Опубликована: Май 30, 2022
To
restore
the
natural
nitrogen
cycle
(N-cycle),
artificial
N-cycle
electrocatalysis
with
flexibility,
sustainability,
and
compatibility
can
convert
intermittent
renewable
energy
(e.g.,
wind)
to
harmful
or
value-added
chemicals
minimal
carbon
emissions.
The
background
of
such
N-cycles,
as
fixation,
ammonia
oxidation,
nitrate
reduction,
is
briefly
introduced
here.
discussion
emerging
nanostructures
in
various
conversion
reactions
focused
on
architecture/compositional
design,
electrochemical
performances,
reaction
mechanisms,
instructive
tests.
Energy
device
advancements
for
achieving
more
functions
well
in
situ/operando
characterizations
toward
understanding
key
steps
are
also
highlighted.
Furthermore,
some
recently
proposed
less
discussed
C–N
coupling
summarized.
We
classify
inorganic
sources
that
each
other
under
an
applied
voltage
into
three
types,
namely,
abundant
nitrogen,
toxic
(nitrite),
oxides,
useful
compounds
ammonia,
hydrazine,
hydroxylamine,
goal
providing
critical
insights
strategies
facilitate
development
our
circular
economy.
Angewandte Chemie International Edition,
Год журнала:
2023,
Номер
62(13)
Опубликована: Фев. 3, 2023
We
demonstrate
the
great
feasibility
of
MBenes
as
a
new
class
tandem
catalysts
for
electrocatalytic
nitrate
reduction
to
ammonia
(NO3
RR).
As
proof
concept,
FeB2
is
first
employed
model
MBene
catalyst
NO3
RR,
showing
maximum
NH3
-Faradaic
efficiency
96.8
%
with
corresponding
yield
25.5
mg
h-1
cm-2
at
-0.6
V
vs.
RHE.
Mechanistic
studies
reveal
that
exceptional
RR
activity
arises
from
catalysis
mechanism,
is,
B
sites
activate
NO3-
form
intermediates,
while
Fe
dissociate
H2
O
and
increase
*H
supply
on
promote
intermediate
hydrogenation
enhance
-to-NH3
conversion.
Energy & Environmental Science,
Год журнала:
2023,
Номер
17(1), С. 49 - 113
Опубликована: Ноя. 7, 2023
This
perspective
highlights
recent
advancements
in
innovative
strategies
to
provide
valuable
insights
into
the
potential
for
energy-saving
hydrogen
production
through
water
electrolysis.
ACS Nano,
Год журнала:
2022,
Номер
16(5), С. 7915 - 7925
Опубликована: Апрель 22, 2022
Electrocatalytic
nitrogen
reduction
reaction
(NRR)
is
a
promising
approach
for
renewable
NH3
production,
while
developing
the
NRR
electrocatalysis
systems
with
both
high
activity
and
selectivity
remains
significant
challenge.
Herein,
we
combine
catalyst
electrolyte
engineering
to
achieve
high-efficiency
enabled
by
Se-vacancy-rich
WSe2-x
in
water-in-salt
(WISE).
Extensive
characterizations,
theoretical
calculations,
situ
X-ray
photoelectron/Raman
spectroscopy
reveal
that
WISE
ensures
suppressed
H2
evolution,
improved
N2
affinity
on
surface,
as
well
an
enhanced
π-back-donation
ability
of
active
sites,
thereby
promoting
NRR.
As
result,
excellent
faradaic
efficiency
62.5%
yield
181.3
μg
h-1
mg-1
achieved
12
m
LiClO4,
which
among
highest
performances
reported
date.
Advanced Materials,
Год журнала:
2022,
Номер
34(39)
Опубликована: Май 17, 2022
Abstract
Atomically
dispersed
metal
catalysts
have
triggered
great
interest
in
the
field
of
catalysis
owing
to
their
unique
features.
Isolated
single
or
few
atoms
can
be
anchored
on
substrates
via
chemical
bonding
space
confinement
maximize
atom
utilization
efficiency.
The
key
challenge
lies
precisely
regulating
geometric
and
electronic
structure
active
centers,
thus
significantly
influencing
catalytic
properties.
Although
several
reviews
been
published
preparation,
characterization,
application
single‐atom
(SACs),
comprehensive
understanding
SACs,
dual‐atom
(DACs),
atomic
clusters
has
never
systematically
summarized.
Here,
recent
advances
engineering
local
environments
state‐of‐the‐art
DACs,
for
enhanced
performance
are
highlighted.
Firstly,
various
synthesis
approaches
presented.
Then,
special
attention
is
focused
elucidation
terms
state
coordination
structure.
Furthermore,
a
summary
isolated
applications
thermocatalysis,
electrocatalysis,
photocatalysis
provided.
Finally,
potential
challenges
future
opportunities
this
emerging
This
review
will
pave
way
regulate
microenvironment
site
boosting
processes.
