Rational Designing Microenvironment of Gas‐Diffusion Electrodes via Microgel‐Augmented CO2 Availability for High‐Rate and Selective CO2 Electroreduction to Ethylene
Advanced Science,
Год журнала:
2024,
Номер
11(40)
Опубликована: Авг. 29, 2024
Abstract
Efficient
electrochemical
CO
2
reduction
reaction
(CO
RR)
requires
advanced
gas‐diffusion
electrodes
(GDEs)
with
tunned
microenvironment
to
overcome
low
availability
in
the
vicinity
of
catalyst
layer.
Herein,
for
first
time,
pyridine‐containing
microgels‐augmented
is
presented
Cu
O‐based
GDE
high‐rate
ethylene,
owing
presence
‐phil
microgels
amine
moieties.
Microgels
as
three‐dimensional
polymer
networks
act
micro‐reservoirs
engineer
and
boost
local
availability.
The
superior
ethylene
production
performance
modified
by
4‐vinyl
pyridine
microgels,
compared
diethylaminoethyl
methacrylate
indicates
bifunctional
effect
pyridine‐based
enhance
availability,
electrocatalytic
reduction.
While
Faradaic
efficiency
(FE)
without
was
capped
at
43%
300
mA
cm
−2
,
showed
56%
FE
700
.
A
similar
trend
observed
zero‐gap
design,
GDEs
58%
−4.0
cell
voltage
(>350
current
density),
resulting
over
2‐fold
improvement
production.
This
study
showcases
use
a
higher
rate
RR‐to‐C
2+
opening
an
avenue
several
other
more
selective
efficient
electrolysis.
Язык: Английский
Advances and Challenges of Carbon‐Free Gas‐Diffusion Electrodes (GDEs) for Electrochemical CO2 Reduction
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 26, 2024
Abstract
Electrochemical
CO
2
reduction
reaction
(CO
RR)
coupled
with
renewable
electricity
holds
promises
for
efficient
mitigation
of
carbon
emission
impacts
on
the
environment
and
turning
into
valuable
chemicals.
One
important
task
in
RR
development
is
design
fabrication
electrodes
stable
operation
long
term.
Gas‐diffusion
(GDEs)
have
been
employed
to
continuously
feed
electrolyzers.
Despite
significant
advances
GDE
tailoring
properties,
present
GDEs
often
suffer
from
critical
issue
flooding
due
electrowetting
carbon‐based
substrates,
which
hinders
transition
industrial
application.
To
address
flooding,
intrinsically
hydrophobic
polymeric
substrates
recently
fabricated
shown
promising
performances.
Herein,
challenges
associated
carbon‐free
are
reviewed
RR.
This
review
first
briefly
outlines
electrolyzers
basics.
Through
discussion
around
shortcomings
conventional
GDEs,
most
recent
efforts
resolve
summarized.
Subsequently,
advances,
advantages,
elaborated.
Finally,
priorities
future
studies
suggested,
aim
support
advancement
scale‐up
extend
them
other
electrochemical
systems
where
gas
electrolyte
contact.
Язык: Английский
Integrated CO2 capture and electrochemical reduction: From mechanism understanding to gas diffusion electrode and catalyst design
Journal of Energy Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 1, 2025
Язык: Английский
Engineering interfacial molecular interactions on Ag Hollow fibre gas diffusion electrodes for high efficiency in CO2 conversion to CO
Chemistry - A European Journal,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 9, 2024
The
electrochemical
CO
Язык: Английский
Pore accessibility matters in CO2 electrolysis: preventing H2 formation and boosting triple-phase boundary on microtubular gas-diffusion electrodes
Applied Catalysis B Environment and Energy,
Год журнала:
2024,
Номер
363, С. 124803 - 124803
Опубликована: Ноя. 10, 2024
Язык: Английский