Abstract
Electrochemical
processes
use
expensive
noble
metal‐based
anodes
which
limit
industrial
implementation.
In
this
study,
a
noble‐metal‐free
Ti‐6Al‐4V
anode
is
introduced
in
an
advanced
flow
reactor.
We
demonstrate
that
the
3D
additively
manufactured
electrode
can
provide
more
projected
surface
area
and
facilitate
anodic
reactions
under
controlled
electrolyte
conditions.
Alkaline
NaOH
KOH
electrolytes
act
as
are
toxic
compounds‐free
enable
corrosion
control.
Impedance
voltammetry
responses
to
electrochemical
studied.
The
active
of
4
rods
scaffold
geometry
42
times
higher
than
flat
plate
anode.
Therefore,
improved
charge
transfer
achieved
reactor
incorporating
due
increased
wettability.
structure
almost
non‐conductive
passivation
on
changed
unstable
structure.
This
enables
effective
911
mA
cm
−2
at
potentials
up
5
V
for
1.5
m
non‐flow
condition.
Furthermore,
1
solution
delays
metal
ion
dissolution
from
by
acting
corrosion‐controlling
medium.
likely
be
affordable
alternative
alkaline
environmentally
friendly
applications.
Advanced Energy Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 20, 2024
Abstract
Electrochemical
reactors,
powered
by
renewable
electricity,
have
garnered
widespread
attention
for
chemical
synthesis
due
to
their
low
energy
consumption
and
pollution‐free
features.
However,
the
inherent
design
flaw
of
traditional
electrochemical
reactors
has
persistently
hindered
advancement
synthesis,
as
they
result
in
product
concentrations,
purity,
continuous
production
issues.
As
a
novel
reactor,
porous
solid‐state
electrolyte
(PSE)
reactor
is
elaborately
designed
overcome
limitation
enabling
direct
pure
products,
possessing
modular
scalable
structure
with
high
efficiency,
safety,
long
stability.
In
this
work,
first,
distinctive
PSE
highlighting
its
structural
features,
core
components,
variable
configurations,
introduced.
Furthermore,
configuration‐relevant
applications
electrosynthesis,
such
formic
acid,
acetic
hydrogen
peroxide
(H
2
O
)
production,
are
summarized.
Integrated
also
discussed,
along
potential
domains
improvements
optimization.
Finally,
future
developmental
directions
devices
thoroughly
explored.
By
addressing
unique
attributes,
showcasing
capabilities,
envisioning
prospective
refinements
diverse
applications,
aim
boost
progression
transformative
technology
toward
commercialization
industrial
adoption,
thereby
revolutionizing
sustainable
synthesis.
Abstract
Electrochemical
processes
use
expensive
noble
metal‐based
anodes
which
limit
industrial
implementation.
In
this
study,
a
noble‐metal‐free
Ti‐6Al‐4V
anode
is
introduced
in
an
advanced
flow
reactor.
We
demonstrate
that
the
3D
additively
manufactured
electrode
can
provide
more
projected
surface
area
and
facilitate
anodic
reactions
under
controlled
electrolyte
conditions.
Alkaline
NaOH
KOH
electrolytes
act
as
are
toxic
compounds‐free
enable
corrosion
control.
Impedance
voltammetry
responses
to
electrochemical
studied.
The
active
of
4
rods
scaffold
geometry
42
times
higher
than
flat
plate
anode.
Therefore,
improved
charge
transfer
achieved
reactor
incorporating
due
increased
wettability.
structure
almost
non‐conductive
passivation
on
changed
unstable
structure.
This
enables
effective
911
mA
cm
−2
at
potentials
up
5
V
for
1.5
m
non‐flow
condition.
Furthermore,
1
solution
delays
metal
ion
dissolution
from
by
acting
corrosion‐controlling
medium.
likely
be
affordable
alternative
alkaline
environmentally
friendly
applications.
