Applied Catalysis B Environment and Energy,
Год журнала:
2023,
Номер
335, С. 122885 - 122885
Опубликована: Май 16, 2023
We
study
the
role
of
binders
(ionomers)
in
determining
life-span
gas
diffusion
electrodes
(GDEs)
used
for
high
throughput
CO2-to-CO
electrolysis.
compare
two
typical
ionomer
materials
(Nafion
and
Fumion,
both
are
widely
preparation
Ag
nanoparticles-based
catalyst
inks)
to
show
that
when
zero-gap
membrane/electrode
assemblies,
Fumion-containing
inks
superior
Nafion-based
ones
can
uphold
a
very
CO-selectivity
electrochemical
CO2
reduction
reaction
longer
time.
This
is
due
ability
Fumion
containing
suppress
precipitation
inside
GDE
structure.
As
Fumion-fixed
GDEs
significantly
less
hydrophobic
than
Nafion-fixed
ones,
our
results
contradict
accepted
opinion
it
their
non-wettability
what
mostly
protects
CO2-reducing
from
flooding.
In
turn,
we
argue
more
important
maintain
efficient
electrolyte
drainage
pathways
structure,
explain
superiority
on
this
basis.
Nano-Micro Letters,
Год журнала:
2023,
Номер
15(1)
Опубликована: Апрель 30, 2023
Abstract
Electrochemically
reducing
CO
2
to
more
reduced
chemical
species
is
a
promising
way
that
not
only
enables
the
conversion
of
intermittent
energy
resources
stable
fuels,
but
also
helps
build
closed-loop
anthropogenic
carbon
cycle.
Among
various
electrocatalysts
for
electrochemical
reduction,
multifunctional
metal–organic
frameworks
(MOFs)
have
been
employed
as
highly
efficient
and
selective
heterogeneous
due
their
ultrahigh
porosity
topologically
diverse
structures.
Up
now,
great
progress
has
achieved
in
design
synthesis
active
MOF-related
catalysts
reduction
reaction
(CO
RR),
corresponding
mechanisms
thoroughly
studied.
In
this
review,
we
summarize
recent
applying
MOFs
derivatives
RR,
with
focus
on
strategies
electrolyzers.
We
first
discussed
different
RR
products
introduced
commonly
applied
electrolyzer
configurations
current
system.
Then,
an
overview
several
categories
(CO,
HCOOH,
CH
4
,
3
OH,
multi-carbon
chemicals)
generated
from
or
via
was
discussed.
Finally,
offer
some
insights
perspectives
future
development
reduction.
aim
provide
new
into
field
further
guide
research
large-scale
applications.
Chemical Society Reviews,
Год журнала:
2023,
Номер
52(21), С. 7305 - 7332
Опубликована: Янв. 1, 2023
Electrochemical
hydrogenation
reactions
hold
the
promise
of
more
sustainable
production
routes
for
towards
bulk
and
fine
chemicals.
Their
broad
applicability,
reactor
concepts,
achieved
milestones
future
perspectives
are
described
herein.
Catalysis Today,
Год журнала:
2023,
Номер
421, С. 114217 - 114217
Опубликована: Май 18, 2023
The
electrocatalytic
reduction
of
carbon
dioxide
(CO2RR)
is
a
crucial
technology
to
develop
the
decarbonisation
strategy
for
circularity
and
producing
solar
fuels
substituting
fossil
fuels.
This
viewpoint
discusses
role
electrode
reactor
design
as
main
factor
in
determining
performance
CO2RR,
at
least
under
reaction
conditions
relevant
industrial
scalability,
evidencing
need
overturn
current
strategic
vision
focused
more
on
improving
characteristics
materials.
Many
parameters
characterising
performances
(such
Faradaic
efficiency,
selectivity
potential
onset,
besides
density)
are
strongly
influenced
typically
dominated
(under
conditions)
by
effective
population
adspecies
surface,
which
is,
turn,
related
mass
control
transport
resistances,
local
pH
changes,
multiphase
boundaries,
wettability
other
aspects.
Even
preliminary
screening
catalysts
could
be
incorrect,
not
operating
representative
conditions,
thus
without
properly
choosing
reactor.
Advanced
electrode/reactor
designs,
e.g.,
based
gas-diffusion
electrodes
(GDEs)
that
avoid
having
liquid
electrolyte
(zero-gap
design),
necessary
improve
CO2RR
scalability
applications.
situ
catalyst
nanoparticle
reconstruction
may
depend
these
Electrochemical
characterization
methods
like
electrochemical
impedance
spectroscopy
(EIS)
right
approach
study
reactions,
providing
indications
controlling
elements
determine
electrocatalyst/electrode
performances.
Catalysts,
Год журнала:
2023,
Номер
13(2), С. 393 - 393
Опубликована: Фев. 11, 2023
Climate
change,
caused
by
greenhouse
gas
emissions,
is
one
of
the
biggest
threats
to
world.
As
per
IEA
report
2021,
global
CO2
emissions
amounted
around
31.5
Gt,
which
increased
atmospheric
concentration
up
412.5
ppm.
Thus,
there
an
imperative
demand
for
development
new
technologies
convert
into
value-added
feedstock
products
such
as
alcohols,
hydrocarbons,
carbon
monoxide,
chemicals,
and
clean
fuels.
The
intrinsic
properties
catalytic
materials
are
main
factors
influencing
efficiency
electrochemical
reduction
(CO2-RR)
reactions.
Additionally,
electroreduction
mainly
affected
poor
selectivity
large
overpotential
requirements.
However,
these
issues
can
be
overcome
modifying
heterogeneous
electrocatalysts
control
their
morphology,
size,
crystal
facets,
grain
boundaries,
surface
defects/vacancies.
This
article
reviews
recent
progress
in
reactions
accomplished
surface-defective
identifies
significant
research
gaps
designing
highly
efficient
electrocatalytic
materials.
Advanced Energy Materials,
Год журнала:
2023,
Номер
13(47)
Опубликована: Ноя. 2, 2023
Abstract
The
electrochemical
CO
2
(eCO
)‐to‐multicarbon
conversion
with
higher
value
is
regarded
as
a
potential
way
to
promote
the
transformation
of
industrial
production
and
green
balance
carbon
cycle.
Recently,
series
advances
have
been
achieved
in
progress
eCO
‐to‐multicarbon
conversion,
including
in‐depth
exploration
coupling
mechanisms,
up‐to‐date
development
characterization
techniques,
novel
interdisciplinary
design
strategies
catalysts
electrolytic
systems.
Therefore,
it
essential
systematically
overview
from
fundamentals
industrialization,
compensating
for
limited
insufficient
reviews
that
reported.
To
fill
aforementioned
research
gap,
this
focused
on
industrialization.
First,
possible
catalytic
mechanisms
are
accordingly
summarized
order
reduction,
small
molecule‐coupled
tandem
conversion.
Second,
situ
technologies
assisting
rationalization
presented.
Third,
optimizing
systems
briefly
classified
advance
industrialization
process.
Finally,
challenges
perspectives
further
reasonably
proposed,
aiming
offer
insights
following
work
field.
Journal of Materials Chemistry A,
Год журнала:
2023,
Номер
11(40), С. 21498 - 21515
Опубликована: Янв. 1, 2023
This
review
emphasizes
the
fundamentals
of
MEA
construction,
different
technical
routes,
and
remaining
challenges
opportunities
for
large-scale
electrochemical
CO
2
reduction
applications.