Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(47)
Published: Aug. 14, 2024
Abstract
The
electrochemical
conversion
of
CO
2
into
valuable
chemicals
is
a
promising
route
for
renowable
energy
storage
and
the
mitigation
greenhouse
gas
emission,
production
multicarbon
(C
2+
)
products
highly
desired.
Here,
we
report
1.4
%Pd−Cu@CuPz
comprising
dispersive
CuO
x
PdO
dual
nanoclusters
embedded
in
MOF
CuPz
(Pz=Pyrazole),
which
achieves
high
C
Faradaic
efficiency
(FE
C2+
81.9
%
alcohol
FE
47.5
with
remarkable
stability
when
using
0.1
M
KCl
aqueous
solution
as
electrolyte
typical
H‐cell.
Particularly,
obviously
improved
on
compared
to
Cu@CuPz
.
Theoretical
calculations
have
revealed
that
enhanced
interfacial
electron
transfer
facilitates
adsorption
*CO
intermediate
*CO−*CO
dimerization
Cu−Pd
sites
bridged
by
Cu
nodes
Additionally,
oxophilicity
Pd
can
stabilize
key
*CH
CHO
promote
subsequent
proton‐coupled
more
efficiently,
confirming
formation
pathway
skew
towards
*C
H
5
OH.
Consequently,
play
synergistic
tandem
role
cooperatively
improving
selectivity
accelerating
reductive
Chemical Science,
Journal Year:
2024,
Volume and Issue:
15(24), P. 9173 - 9182
Published: Jan. 1, 2024
Directional
in
situ
reconfiguration
of
Ag
incorporating
HKUST-1
frameworks
was
introduced
to
restructure
multi-phase
Ag/Cu/Cu
2
O
electrocatalysts
for
the
selective
electro-reduction
CO
C
H
4
.
Small,
Journal Year:
2024,
Volume and Issue:
20(32)
Published: March 19, 2024
Abstract
Here,
the
molecule‐modified
Cu‐based
array
is
first
constructed
as
self‐supporting
tandem
catalyst
for
electrocatalytic
CO
2
reduction
reaction
(CO
RR)
to
C
products.
The
modification
of
cuprous
oxide
nanowire
on
copper
mesh
(Cu
O@CM)
with
cobalt(II)
tetraphenylporphyrin
(CoTPP)
molecules
achieved
via
a
simple
liquid
phase
method.
systematical
characterizations
confirm
that
formation
axial
coordinated
Co‐O‐Cu
bond
between
Cu
O
and
CoTPP
can
significantly
promote
dispersion
electrical
properties
CoTPP‐Cu
O@CM
heterojunction
array.
Consequently,
compared
array,
optimized
sample
electrocatalyst
realize
2.08‐fold
Faraday
efficiency
(73.2%
vs
35.2%)
2.54‐fold
current
density
(‒52.9
‒20.8
mA
cm
–2
)
at
‒1.1
V
versus
RHE
in
an
H‐cell.
comprehensive
performance
superior
most
reported
materials
Further
study
reveals
adsorption
restrain
hydrogen
evolution
reaction,
improve
coverage
*
intermediate,
maintain
existence
Cu(I)
low
potential.
Energy & Environmental Science,
Journal Year:
2024,
Volume and Issue:
17(15), P. 5336 - 5364
Published: Jan. 1, 2024
Producing
deeply
reduced
(>2
e
−
per
carbon
atom)
products
from
the
electrochemical
CO
2
reduction
reaction
on
non-Cu-based
catalysts
is
an
attractive
and
sustainable
approach
for
utilization.
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: July 19, 2024
Abstract
High-purity
ethylene
production
from
CO
2
electroreduction
(CO
RR)
is
a
coveted,
yet
arduous
feat
because
the
product
stream
comprises
blend
of
unreacted
,
H
2,
and
other
off-target
reduction
products.
Here
we
present
an
indirect
strategy
for
-to-ethylene
conversion,
one
that
employs
2-bromoethanol
(Br-EO)
as
mediator.
Br-EO
initially
generated
RR
subsequently
undergoes
to
without
need
energy-intensive
separation
steps.
The
optimized
AC-Ag/C
catalyst
with
Cl
incorporation
reduces
energy
barrier
debromination
step
during
reduction,
accelerates
mass-transfer
process,
delivering
4-fold
decrease
relaxation
time
constant.
Resultantly,
achieved
FE
over
95.0
±
0.36%
at
low
potential
−0.08
V
versus
reversible
hydrogen
electrode
(RHE)
in
H-type
cell
0.5
M
KCl
electrolyte,
alongside
near
100%
selectivity
within
range
−0.38
−0.58
RHE.
Through
this
strategy,
average
purity
6-hour
electrolysis
was
98.00
1.45
wt%,
−0.48
(vs
RHE)
neutralized
electrolyte
after
Cu/Cu
O
flow-cell.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(47)
Published: Aug. 14, 2024
Abstract
The
electrochemical
conversion
of
CO
2
into
valuable
chemicals
is
a
promising
route
for
renowable
energy
storage
and
the
mitigation
greenhouse
gas
emission,
production
multicarbon
(C
2+
)
products
highly
desired.
Here,
we
report
1.4
%Pd−Cu@CuPz
comprising
dispersive
CuO
x
PdO
dual
nanoclusters
embedded
in
MOF
CuPz
(Pz=Pyrazole),
which
achieves
high
C
Faradaic
efficiency
(FE
C2+
81.9
%
alcohol
FE
47.5
with
remarkable
stability
when
using
0.1
M
KCl
aqueous
solution
as
electrolyte
typical
H‐cell.
Particularly,
obviously
improved
on
compared
to
Cu@CuPz
.
Theoretical
calculations
have
revealed
that
enhanced
interfacial
electron
transfer
facilitates
adsorption
*CO
intermediate
*CO−*CO
dimerization
Cu−Pd
sites
bridged
by
Cu
nodes
Additionally,
oxophilicity
Pd
can
stabilize
key
*CH
CHO
promote
subsequent
proton‐coupled
more
efficiently,
confirming
formation
pathway
skew
towards
*C
H
5
OH.
Consequently,
play
synergistic
tandem
role
cooperatively
improving
selectivity
accelerating
reductive
