Advanced Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 2, 2025
Abstract
Electrocatalytic
carbon
dioxide
reduction
(CO
2
RR)
holds
great
promise
for
capture
and
utilization.
In
acidic
media,
CO
RR
enables
efficient
conversion,
but
with
low
selectivity
due
to
the
competitive
hydrogen
evolution
reaction
(HER)
catalyst
corrosion.
Herein,
conductive
polymer
polypyrrole
(PPy)
coated
Ag
nanoparticles
(NPs)
catalysts
(Ag@PPy)
different
thicknesses
are
designed
synthesized,
which
could
create
a
hydrophobic
environment
that
reduces
accessibility
of
H
O
NPs
thereby
inhibiting
HER.
The
coating
PPy
layer
also
protects
from
corrosion
improves
stability
system.
Among
them,
Ag@PPy‐2
appropriate
thickness
showed
up
91.7%
electrocatalytic
high
durability
in
electrolyte
at
−300
mA
cm
−2
.
Density
functional
theory
(DFT)
calculation
shows
not
only
inhibit
HER,
reduce
energy
barrier,
improve
efficiency
CO.
This
study
may
provide
some
new
ideas
design
advanced
selective
by
local
microenvironmental
engineering.
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(23)
Опубликована: Фев. 13, 2024
Abstract
Electrocatalytic
CO
2
reduction
(ECR)
powered
by
renewable
electricity
has
attracted
of
wide
attention
because
its
advantages
to
produce
high‐value‐added
chemicals
and
fuels.
Additionally,
ECR
played
a
crucial
role
in
addressing
the
challenge
excessive
fossil
fuel
consumption
caused
global
warming.
Herein,
unique
armor
structure
with
Ni
nanoparticles
coated
carbon
shell
containing
Ni─N─C
(Ni─NP@Ni─SA)
for
industrial
pH‐universal
electrolytes
is
designed.
Ni─NP@Ni─SA
catalyst
exhibits
≈100%
Faradaic
efficiency,
partial
current
density
can
reach
500,
361,
615
mA
cm
−2
strong
alkaline
(pH
14),
neutral
7.2)
acidic
1)
electrolytes,
respectively.
Moreover,
drive
rechargeable
Zn‐CO
battery
high
power
3.45
mW
,
outstanding
stability
over
36
h.
The
structural
characterizations
theoretical
calculation
together
present
that
electron
penetration
effect
strengthen
electronic
enrichment
state
single
atom,
which
facilitates
reaction
kinetics
decreasing
formation
energy
barrier
key
intermediate
*
COOH.
This
work
pioneers
new
design
strategy
enhance
activity
single‐atom
catalysts
seek
high‐efficiency
electrocatalysts
electrolytes.
Journal of Materials Chemistry A,
Год журнала:
2024,
Номер
12(16), С. 9486 - 9493
Опубликована: Янв. 1, 2024
A
cobalt
polyphthalocyanine
framework
coated
by
polyaniline
shows
excellent
oxygen-resistant
CO
2
electroreduction
performance
with
high
selectivity
of
up
to
87.4%
and
an
industry-level
j
−270
mA
cm
−2
under
5%
O
feed
gas
in
acidic
media.
Advanced Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 2, 2025
Abstract
Electrocatalytic
carbon
dioxide
reduction
(CO
2
RR)
holds
great
promise
for
capture
and
utilization.
In
acidic
media,
CO
RR
enables
efficient
conversion,
but
with
low
selectivity
due
to
the
competitive
hydrogen
evolution
reaction
(HER)
catalyst
corrosion.
Herein,
conductive
polymer
polypyrrole
(PPy)
coated
Ag
nanoparticles
(NPs)
catalysts
(Ag@PPy)
different
thicknesses
are
designed
synthesized,
which
could
create
a
hydrophobic
environment
that
reduces
accessibility
of
H
O
NPs
thereby
inhibiting
HER.
The
coating
PPy
layer
also
protects
from
corrosion
improves
stability
system.
Among
them,
Ag@PPy‐2
appropriate
thickness
showed
up
91.7%
electrocatalytic
high
durability
in
electrolyte
at
−300
mA
cm
−2
.
Density
functional
theory
(DFT)
calculation
shows
not
only
inhibit
HER,
reduce
energy
barrier,
improve
efficiency
CO.
This
study
may
provide
some
new
ideas
design
advanced
selective
by
local
microenvironmental
engineering.
