Unraveling the Role of Pressure, Oxidation State, and Morphology in CO2 Electroreduction to C2+ Products over Copper Oxides
Nanoscale Advances,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
This
study
provides
compelling
experimental
evidence
of
the
synergistic
effects
reaction
pressure,
oxidation
state,
and
catalyst
morphology
on
C2+
selectivity
copper
(Cu)
oxide
catalysts
in
electrochemical
CO2
reduction
(ECR).
We
employed
femtosecond
laser
structuring
thermal
treatments
to
synthesize
Cu(0),
Cu(i),
Cu(ii),
a
mixed
state
Cu(x)
with
characteristic
micro-
nano-morphologies.
The
optimal
pressure
for
maximizing
productivity
aqueous
bicarbonate
media
was
established
by
assessing
products
at
different
imposed
pressures
custom-designed,
pressurizable
two-compartment
cell.
Among
thermally
produced
Cu(i)
only
unstructured
exhibiting
ethylene
gas-phase
selectivity.
Nanostructuring
enhanced
such
that
all
three
states
could
produce
ethylene.
More
importantly,
nanostructured
comprising
well-dispersed
exhibited
as
well
ethane
production
-
associated
undercoordinated
Cu
stabilizing
intermediates
facilitating
charge
transfer
yield
longer
products.
work
important
insights
into
key
factors
influencing
Cu-based
catalysts,
establishing
basis
an
informed
design
high-energy
density
Язык: Английский
Recent advances in the measurement of thermochemical, electrochemical and photochemical efficiency of CO2 conversion to value-added products - its challenges and future directions
Deleted Journal,
Год журнала:
2025,
Номер
unknown, С. 100049 - 100049
Опубликована: Апрель 1, 2025
Язык: Английский