Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(26)
Published: April 16, 2024
Crystal-phase
engineering
that
promotes
the
rearrangement
of
active
atoms
to
form
new
structural
frameworks
achieves
excellent
result
in
field
electrocatalysis
and
optimizes
performance
various
electrochemical
reactions.
Herein,
for
first
time,
it
is
found
different
components
metallic
aerogels
will
affect
crystal-phase
transformation,
especially
high-entropy
alloy
(HEAAs),
whose
transformation
during
annealing
more
difficult
than
medium-entropy
(MEAAs),
but
they
still
show
better
performance.
Specifically,
PdPtCuCoNi
HEAAs
with
parent
phase
face-centered
cubic
(FCC)
PdCu
possess
89.24%
selectivity,
746.82
mmol
h
Nature Communications,
Journal Year:
2023,
Volume and Issue:
14(1)
Published: June 29, 2023
Copper
is
well-known
to
be
selective
primary
amines
via
electrocatalytic
nitriles
hydrogenation.
However,
the
correlation
between
local
fine
structure
and
catalytic
selectivity
still
illusive.
Herein,
we
find
that
residual
lattice
oxygen
in
oxide-derived
Cu
nanowires
(OD-Cu
NWs)
plays
vital
roles
boosting
acetonitrile
electroreduction
efficiency.
Especially
at
high
current
densities
of
more
than
1.0
A
cm-2,
OD-Cu
NWs
exhibit
relatively
Faradic
Meanwhile,
a
series
advanced
situ
characterizations
theoretical
calculations
uncover
residues,
form
Cu4-O
configuration,
act
as
electron
acceptors
confine
free
flow
on
surface,
consequently
improving
kinetics
hydrogenation
catalysis.
This
work
could
provide
new
opportunities
further
improve
performance
beyond,
by
employing
oxygen-mediated
tuning
engineering.
Nature Communications,
Journal Year:
2023,
Volume and Issue:
14(1)
Published: July 29, 2023
Abstract
Ethylene
glycol
is
a
widely
utilized
commodity
chemical,
the
production
of
which
accounts
for
over
46
million
tons
CO
2
emission
annually.
Here
we
report
paired
electrocatalytic
approach
ethylene
from
methanol.
Carbon
catalysts
are
effective
in
reducing
formaldehyde
into
with
92%
Faradaic
efficiency,
whereas
Pt
at
anode
enable
through
methanol
partial
oxidation
75%
efficiency.
With
membrane-electrode
assembly
configuration,
show
feasibility
electrosynthesis
single
electrolyzer.
The
electrolyzer
operates
full
cell
voltage
3.2
V
current
density
100
mA
cm
−2
,
60%
reduction
energy
consumption.
Further
investigations,
using
operando
flow
mass
spectroscopy,
isotopic
labeling,
and
functional
theory
(DFT)
calculations,
indicate
that
desorption
*CH
OH
intermediate
crucial
step
determining
selectively
towards
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: June 19, 2024
Abstract
The
high
Faradaic
efficiency
(FE)
of
the
electrocatalytic
deuteration
organics
with
D
2
O
at
a
large
current
density
is
significant
for
deuterated
electrosynthesis.
However,
FE
and
are
two
ends
seesaw
because
severe
evolution
side
reaction
nearly
industrial
densities.
Herein,
we
report
combined
scenario
nanotip-enhanced
electric
field
surfactant-modified
interface
microenvironment
to
enable
arylacetonitrile
in
an
80%
−100
mA
cm
−2
.
increased
concentration
low
activation
energy
due
along
tips
accelerated
transfer
suppressed
by
surfactant-created
deuterophobic
contribute
breaking
trade-off
between
density.
Furthermore,
application
our
strategy
other
reactions
improved
efficiencies
rationalizes
design
concept.
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: April 29, 2024
Abstract
The
electrochemical
synthesis
of
propylene
oxide
is
far
from
practical
application
due
to
the
limited
performance
(including
activity,
stability,
and
selectivity).
In
this
work,
we
spatially
decouple
bromide-mediated
process
avoid
direct
contact
between
anode
propylene,
where
bromine
generated
at
then
transferred
into
an
independent
reactor
react
with
propylene.
This
strategy
effectively
prevents
side
reactions
eliminates
interference
stability
caused
by
massive
alkene
input
vigorously
stirred
electrolytes.
As
expected,
selectivity
for
reaches
above
99.9%
a
remarkable
Faradaic
efficiency
91%
750-h
(>30
days).
When
electrode
area
scaled
up
25
cm
2
,
262
g
pure
obtained
after
50-h
continuous
electrolysis
6.25
A.
These
findings
demonstrate
that
bromohydrin
route
represents
viable
alternative
manufacture
epoxides.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(26)
Published: April 16, 2024
Crystal-phase
engineering
that
promotes
the
rearrangement
of
active
atoms
to
form
new
structural
frameworks
achieves
excellent
result
in
field
electrocatalysis
and
optimizes
performance
various
electrochemical
reactions.
Herein,
for
first
time,
it
is
found
different
components
metallic
aerogels
will
affect
crystal-phase
transformation,
especially
high-entropy
alloy
(HEAAs),
whose
transformation
during
annealing
more
difficult
than
medium-entropy
(MEAAs),
but
they
still
show
better
performance.
Specifically,
PdPtCuCoNi
HEAAs
with
parent
phase
face-centered
cubic
(FCC)
PdCu
possess
89.24%
selectivity,
746.82
mmol
h
