Advanced Energy Materials,
Journal Year:
2023,
Volume and Issue:
13(19)
Published: April 9, 2023
Abstract
The
electrochemical
CO
2
reduction
to
CH
4
has
been
extensively
demonstrated,
but
still
suffers
from
relatively
poor
activity
and
requires
high
overpotentials
especially
at
large
electrolysis
rates.
Perovskite
oxides
(A
x
B
y
O)
are
one
type
of
promising
electrocatalyst
for
the
due
their
tunable
electronic
structures.
In
this
work,
a
Ca
CuO
3
perovskite
oxide
catalyst
is
developed
with
alkaline‐earth
A‐sites,
featuring
an
inherently
strong
basic
strengthand
outstanding
capability
adsorption,
as
well
undercoordinated
Cu
sites
generated
through
partial
surface
2+
cation
leaching.
exhibitsa
current
density
517
±
23
mA
cm
−2
producing
low
applied
potential
−0.30
V
versus
reversible
hydrogen
electrode,
which
further
reached
peak
value
1452
156
.
Density
functional
calculations
show
that
allowed
promote
hydrogenation
*
subsequent
CHO
intermediates,
thus
leading
activity.
This
work
suggests
attractive
design
strategy
tuning
A‐sites
in
realize
high‐rate
‐to‐CH
electrosynthesis
overpotentials.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
36(17)
Published: June 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
Angewandte Chemie International Edition,
Journal Year:
2023,
Volume and Issue:
62(28)
Published: March 27, 2023
Abstract
Electrocatalytic
CO
2
reduction
reaction
(CO
RR)
in
membrane
electrode
assembly
(MEA)
systems
is
a
promising
technology.
Gaseous
can
be
directly
transported
to
the
cathode
catalyst
layer,
leading
enhanced
rate.
Meanwhile,
there
no
liquid
electrolyte
between
and
anode,
which
help
improve
energy
efficiency
of
whole
system.
The
remarkable
progress
achieved
recently
points
out
way
realize
industrially
relevant
performance.
In
this
review,
we
focus
on
principles
MEA
for
RR,
focusing
gas
diffusion
electrodes
ion
exchange
membranes.
Furthermore,
anode
processes
beyond
oxidation
water
are
considered.
Besides,
voltage
distribution
scrutinized
identify
specific
losses
related
individual
components.
We
also
summarize
generation
different
reduced
products
together
with
corresponding
catalysts.
Finally,
challenges
opportunities
highlighted
future
research.
Energy & Environmental Science,
Journal Year:
2023,
Volume and Issue:
16(5), P. 2003 - 2013
Published: Jan. 1, 2023
This
work
presents
that
Cu
with
atomic-scale
spacings
(
d
s
)
efficiently
catalyses
the
electrochemical
co-reduction
of
CO
2
and
NO
3
−
to
urea.
Specifically,
near
6
Å
(6
Å-Cu)
produces
urea
a
high
yield
rate
partial
current
density.
ACS Nano,
Journal Year:
2024,
Volume and Issue:
18(8), P. 6008 - 6015
Published: Feb. 14, 2024
In
the
field
of
electrocatalysis,
significant
emphasis
has
been
placed
on
developing
electrode
materials
to
enable
critical
energy
storage
reactions
and
sustainable
chemical
synthesis.
However,
is
just
one
part
a
complex
interfacial
environment
that
controls
substrate
adsorption
reactivity.
presence
liquid
electrolyte
an
electrochemical
interface,
processes
behave
substantially
differently
than
those
in
gas
phase.
Understanding
these
processes,
which
play
important
role
all
electrocatalytic
reactions,
for
design
effective
electrocatalysts.
this
Perspective,
we
discuss
current
understanding
its
implications
catalyst
design.
Russian Chemical Reviews,
Journal Year:
2023,
Volume and Issue:
92(12), P. RCR5104 - RCR5104
Published: Dec. 1, 2023
After
the
appearance
of
green
chemistry
concept,
which
was
introduced
in
vocabulary
early
1990s,
its
main
statements
have
been
continuously
developed
and
modified.
Currently,
there
are
10–12
cornerstones
that
should
form
basis
for
an
ideal
chemical
process.
This
review
analyzes
accumulated
experience
achievements
towards
design
products
processes
reduce
or
eliminate
use
generation
hazardous
substances.
The
presents
views
leading
Russian
scientists
specializing
various
fields
this
subject,
including
homogeneous
heterogeneous
catalysis,
fine
basic
organic
synthesis,
electrochemistry,
polymer
chemistry,
based
on
bio-renewable
feedstocks
energetic
compounds
materials.
A
new
approach
to
quantitative
evaluation
environmental
friendliness
by
authors
is
described.
<br>
bibliography
includes
1761.
Journal of the American Chemical Society,
Journal Year:
2023,
Volume and Issue:
145(36), P. 19422 - 19439
Published: Aug. 29, 2023
Wastewater
is
an
underleveraged
resource;
it
contains
pollutants
that
can
be
transformed
into
valuable
high-purity
products.
Innovations
in
chemistry
and
chemical
engineering
will
play
critical
roles
valorizing
wastewater
to
remediate
environmental
pollution,
provide
equitable
access
resources
services,
secure
materials
from
diminishing
feedstock
availability.
This
perspective
envisions
electrochemical
refining─the
use
of
processes
tune
recover
specific
products
wastewaters─as
the
necessary
framework
accelerate
wastewater-based
electrochemistry
widespread
practice.
We
define
prescribe
a
use-informed
approach
simultaneously
serves
wastewater-pollutant-product
triads
uncovers
mechanistic
understanding
generalizable
broad
cases.
this
evaluate
research
needs
case
studies
electrocatalysis,
stoichiometric
conversions,
separations.
Finally,
we
rationale
guidance
for
intentionally
expanding
refining
product
portfolio.
require
coordinated
effort
multiple
expertise
areas
meet
urgent
need
extracting
maximal
value
complex,
variable,
diverse,
abundant
resources.
ACS Catalysis,
Journal Year:
2023,
Volume and Issue:
13(13), P. 8467 - 8476
Published: June 12, 2023
The
NiOOH
electrode
is
commonly
used
in
electrochemical
alcohol
oxidations.
Yet
understanding
the
reaction
mechanism
far
from
trivial.
In
many
cases,
difficulty
lies
decoupling
of
overlapping
influence
chemical
and
factors
that
not
only
govern
pathway
but
also
crystal
structure
situ
formed
oxyhydroxide.
Here,
we
use
a
different
approach
to
understand
this
system:
start
with
synthesizing
pure
forms
two
oxyhydroxides,
β-NiOOH
γ-NiOOH.
Then,
using
oxidative
dehydrogenation
three
typical
alcohols
as
model
reactions,
examine
reactivity
selectivity
each
While
solvent
has
clear
effect
on
rate
β-NiOOH,
observed
was
found
be
unaffected
remained
over
95%
for
both
primary
secondary
aldehydes
ketones,
respectively.
Yet,
high
concentration
OH-
aqueous
promoted
preferential
conversion
benzyl
benzoic
acid.
Thus,
formation
carboxylic
compounds
oxidation
without
alkaline
electrolyte
more
likely
follow
direct
pathway.
Overoxidation
β-
γ-phase
will
affect
sustained
>95%
conversion.
mechanistic
examinations
comprising
kinetic
isotope
effects,
Hammett
analysis,
spin
trapping
studies
reveal
oxidatively
dehydrogenated
benzaldehyde
via
consecutive
hydrogen
atom
transfer
steps.
This
work
offers
unique
catalytic
properties
shedding
light
NiOOH-based
electrodes.
