Industrial & Engineering Chemistry Research,
Journal Year:
2024,
Volume and Issue:
63(51), P. 22280 - 22286
Published: Dec. 11, 2024
The
development
of
efficient
and
stable
catalysts
for
electrochemical
CO2
reduction
(CO2RR)
to
formic
acid
(HCOOH)
is
great
practical
significance
balancing
energy
environmental
issues.
SnO2
shows
potential
application
the
CO2RR
HCOOH,
while
its
low
current
carrier
density
inappropriate
adsorption
crucial
intermediates
limit
performance
in
terms
activity
selectivity.
In
this
study,
phthalocyanine
(Pc)
tetraphenyl
porphyrin
(TPP)
were
loaded
onto
nanosheets
forming
composite
materials
with
different
types
N
(SnO2/Pc
SnO2/TPP),
respectively.
Pc,
both
pyridinic
pyrrolic
are
present,
only
present
TPP.
XPS
analysis
reveals
that
obvious
electronic
interaction
happened
between
Sn,
regulating
states
Sn
sites.
As
a
result,
SnO2/Pc
composites
can
selectively
convert
HCOOH
Faraday
efficiency
up
90.25%
partial
16.15
mA
cm–2
at
−1.3
V
vs
RHE,
higher
than
SnO2/TPP
SnO2.
Density
functional
theory
(DFT)
calculations
further
prove
superior
catalytic
comes
from
moderate
*OCHO
*HCOOH,
which
beneficial
*HCOOH
desorption.
ACS Nano,
Journal Year:
2024,
Volume and Issue:
18(13), P. 9678 - 9687
Published: March 24, 2024
The
unsatisfactory
adsorption
and
activation
of
CO2
suppress
electrochemical
reduction
over
a
wide
potential
window.
Herein,
the
built-in
electric
field
(BIEF)
at
CeO2/In2O3
n–n
heterostructure
realizes
C1
(CO
HCOO–)
selectivity
90.0%
in
broad
range
potentials
from
−0.7
to
−1.1
V
with
maximum
value
98.7
±
0.3%
−0.8
V.
In
addition,
current
density
(−1.1
V)
BIEF
is
about
2.0-
3.2-fold
that
In2O3
physically
mixed
sample,
respectively.
experimental
theoretical
calculation
results
indicate
introduction
CeO2
triggered
charge
redistribution
formed
interfaces,
which
enhanced
interfacial
low
overpotentials.
Furthermore,
promoting
effect
was
also
extended
CeO2/In2S3.
This
work
gives
deep
understanding
engineering
for
highly
efficient
electroreduction
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(16)
Published: Feb. 22, 2024
Abstract
Abstract:Catalyst
surface
dynamics
drive
the
generation
of
active
species
for
electrocatalytic
reactions.
Yet,
understanding
dominant
site
formation
and
reaction
mechanisms
is
limited.
In
this
study,
we
thoroughly
investigate
dynamic
reconstruction
two‐dimensional
defective
Bi
nanosheets
from
exfoliated
2
Se
3
under
electrochemical
CO
nitrate
(NO
−
)
reduction
conditions.
The
ultrathin
obtained
by
NaBH
4
‐assisted
cryo‐mediated
liquid‐phase
exfoliation
are
more
easily
reduced
reconstructed
to
with
high‐density
grain
boundaries
(GBs;
GB‐rich
Bi).
catalyst
affords
a
remarkable
yield
rate
4.6
mmol
h
−1
mg
cat.
Faradaic
efficiency
32
%
urea
production
at
−0.40
V
vs.
RHE.
Notably,
8.2
times
higher
than
those
low‐GB
bulk
catalysts,
respectively.
Theoretical
analysis
demonstrates
that
GB
sites
significantly
reduce
*CO
*NH
intermediate
energy
C−N
coupling
barrier,
enabling
selective
electrosynthesis
on
catalyst.
This
work
will
trigger
further
research
into
structure‐activity
interplay
in
processes
using
situ
techniques.
Energy & Environmental Science,
Journal Year:
2023,
Volume and Issue:
16(11), P. 4812 - 4833
Published: Jan. 1, 2023
In
this
review,
we
systematically
summarizes
the
activity
descriptors
of
CO
2
methanation,
recent
advances
SSCs
for
electrocatalytic
and
in
situ
characterizations
used
tracking
structure
change
during
RR.
Journal of Materials Chemistry C,
Journal Year:
2023,
Volume and Issue:
12(5), P. 1609 - 1624
Published: Dec. 22, 2023
In
recent
years,
bismuth-based
semiconductors
have
become
a
research
hotspot
in
the
new
semiconductor
field
due
to
their
unique
optical
and
electronic
properties.
ChemSusChem,
Journal Year:
2024,
Volume and Issue:
17(14)
Published: Feb. 27, 2024
Abstract
The
electroreduction
of
CO
2
to
high‐value
products
is
a
promising
approach
for
achieving
carbon
neutrality.
Among
these
products,
formic
acid
stands
out
as
having
the
most
potential
industrialization
due
its
optimal
economic
value
in
terms
consumption
and
output.
In
recent
years,
Faraday
efficiency
from
has
reached
90~100
%.
However,
this
high
selectivity
cannot
be
maintained
extended
periods
under
currents
meet
industrial
requirements.
This
paper
reviews
excellent
work
perspective
catalyst
stability,
summarizing
discussing
performance
typical
catalysts.
Strategies
preparing
stable
highly
active
catalysts
are
also
briefly
described.
review
may
offer
useful
data
reference
valuable
guidance
future
design
long‐stability
