ChemCatChem,
Journal Year:
2024,
Volume and Issue:
16(23)
Published: Aug. 22, 2024
Abstract
The
electrochemical
CO
2
reduction
reaction
(CO
RR)
into
valuable
chemicals
represents
an
effective
approach
for
realizing
carbon
neutralization
goals.
Copper
oxide‐derived
catalysts
are
particularly
promising
due
to
their
tunable
electronic
structures.
In
this
study,
we
focused
on
investigating
the
Ag
Cu
O
3
model
catalyst
and
a
mixture
of
CuO
with
identical
metal
molar
ratio
(denoted
as
M–CuAgO).
Electrochemical
RR
tests
revealed
that
exhibited
selectivity
towards
ethanol,
while
M–CuAgO
showed
no
multi‐carbon
products.
Characterizations
post‐reaction
materials
differences
in
specific
crystal
structures
two
catalysts.
Further
X‐ray
photoelectron
spectroscopy
(XPS)
analysis
demonstrated
structure,
after
reaction,
facilitated
transfer
electrons
from
Ag,
thereby
promoting
formation
This
work
underscores
significance
structural
design
precatalysts
opens
up
new
avenues
high‐performance
EcoEnergy,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 12, 2024
Abstract
The
electrochemical
synthesis
for
value‐added
chemicals
and
fuels
via
carbon
dioxide
reduction
reaction
(CO
2
RR)
offers
an
effective
route
to
close
the
anthropogenic
cycle
store
renewable
energy.
Currently,
copper‐based
catalyst
is
still
only
choice
generating
various
CO
RR
species
beyond
two
electron
products.
However,
wide
range
of
products
generated
on
copper
leads
low
selectivity,
their
concentrations
in
electrolytes
pose
great
costs
downstream
purification
process
significantly
challenge
scalability
this
technology.
To
make
technology
economically
viable,
enhancing
product
selectivity
crucial.
In
review,
we
identify
primary
discuss
latest
insights
into
mechanisms
controlling
selectivity.
Then,
examined
factors
that
affect
Emphasizing
these
design,
highlight
importance
advanced
technologies
expand
our
knowledge
prospects
future
RR.
Advanced Science,
Journal Year:
2024,
Volume and Issue:
11(44)
Published: Oct. 3, 2024
Abstract
Surface
reconstruction
plays
an
essential
role
in
electrochemical
catalysis.
The
structures,
compositions,
and
functionalities
of
the
real
catalytic
species
sites
generated
by
reconstruction,
however,
are
yet
to
be
clearly
understood,
for
metastable
or
transit
state
most
reconstructed
structures.
Herein,
a
series
NiFe
oxalates
(Ni
x
Fe
1‐
C
2
O
4
,
=
1,
0.9,
0.7,
0.6,
0.5,
0)
synthesized
overall
water
splitting
electrocatalysis.
Whilst
Ni
1‐x
shows
great
hydrogen
evolution
reaction
(HER)
activity,
situ
OOH
exhibits
outstanding
oxygen
(OER)
activity.
As
identified
Raman
spectroscopy
quasi‐in
X‐ray
absorption
(XAS)
techniques,
reconstructions
from
into
defective
finally
amorphous
active
(R‐Ni
OOH)
confirmed
upon
cyclic
voltammetry
processes.
Specifically,
fully
R‐Ni
0.6
0.4
demonstrates
best
OER
activity
(179
mV
reach
10
mA
cm
−2
),
originating
its
abundant
optimal
d‐band
center.
Benefiting
alkaline
electrolyzer
composed
cathode
anode
achieves
superb
performance
(1.52
V@10
).
This
work
provides
in‐depth
structure‐property
relationship
understanding
on
catalysts
offers
new
pathway
designing
novel
catalyst.
Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
136(49)
Published: Aug. 13, 2024
Abstract
Electroreduction
of
CO
2
into
multi‐carbon
(C2+)
products
(e.g.
C2+
alcohols)
offers
a
promising
way
for
utilization.
Use
strong
alkaline
electrolytes
is
favorable
to
producing
products.
However,
can
react
with
hydroxide
form
carbonate/bicarbonate,
which
results
in
low
carbon
utilization
efficiency
and
poor
stability.
Using
acidic
electrolyte
an
efficient
solve
the
problems,
but
it
challenge
achieve
high
selectivity
Here
we
report
that
amine
modified
copper
nanoparticles
exhibit
at
condition.
The
Faradaic
(FE)
reach
up
81.8
%
media
(pH=2)
total
current
density
410
mA
cm
−2
over
n‐butylamine
Cu.
Especially
FE
alcohols
52.6
%,
higher
than
those
reported
electroreduction
In
addition,
single‐pass
towards
production
60
%.
Detailed
studies
demonstrate
molecule
on
surface
Cu
cannot
only
enhance
formation,
adsorption
coverage
*CO,
also
provide
hydrophobic
environment,
result
ChemCatChem,
Journal Year:
2024,
Volume and Issue:
16(23)
Published: Aug. 22, 2024
Abstract
The
electrochemical
CO
2
reduction
reaction
(CO
RR)
into
valuable
chemicals
represents
an
effective
approach
for
realizing
carbon
neutralization
goals.
Copper
oxide‐derived
catalysts
are
particularly
promising
due
to
their
tunable
electronic
structures.
In
this
study,
we
focused
on
investigating
the
Ag
Cu
O
3
model
catalyst
and
a
mixture
of
CuO
with
identical
metal
molar
ratio
(denoted
as
M–CuAgO).
Electrochemical
RR
tests
revealed
that
exhibited
selectivity
towards
ethanol,
while
M–CuAgO
showed
no
multi‐carbon
products.
Characterizations
post‐reaction
materials
differences
in
specific
crystal
structures
two
catalysts.
Further
X‐ray
photoelectron
spectroscopy
(XPS)
analysis
demonstrated
structure,
after
reaction,
facilitated
transfer
electrons
from
Ag,
thereby
promoting
formation
This
work
underscores
significance
structural
design
precatalysts
opens
up
new
avenues
high‐performance
