ACS Energy Letters,
Год журнала:
2024,
Номер
9(4), С. 1932 - 1975
Опубликована: Апрель 4, 2024
Carbon
dioxide
(CO2),
an
archetypal
greenhouse
gas,
can
be
transformed
into
valuable
fuels
through
photocatalysis,
presenting
auspicious
avenue
for
combating
global
climate
change
and
energy
crisis.
While
halide
perovskites
have
sparked
substantial
research
interest,
concerns
over
lead
toxicity
spurred
exploration
of
their
lead-free
counterparts
CO2
photoreduction.
This
comprehensive
Review
navigates
the
fundamentals
reduction,
delving
basic
principles,
mechanisms,
relevant
operando
techniques.
It
then
introduces
diverse
structures
(LFHPs),
synthesis
methodologies,
intrinsic
properties
that
render
them
suitable
Subsequently,
unfolds
application
modification
strategies
light-driven
conversion,
highlighting
breakthroughs
shedding
light
on
potential
mechanisms.
Finally,
current
challenges
to
tailor
LFHPs
robust
photocatalytic
reduction
are
critically
discussed,
offering
insights
future
in
this
realm.
aims
illuminate
path
toward
sustainable
bridging
knowledge
gaps
inspiring
innovations
a
greener
carbon-neutral
tomorrow.
Energy & Environmental Science,
Год журнала:
2023,
Номер
16(11), С. 4714 - 4758
Опубликована: Янв. 1, 2023
This
review
analyzes
advanced
catalysts
and
C
2+
synthesis
mechanisms
based
on
theoretical
explorations
in
situ
/
operando
characterizations.
Triphasic
interface
optimization
is
discussed
for
the
potential
of
industry-compatible
stability.
Journal of the American Chemical Society,
Год журнала:
2023,
Номер
145(25), С. 14133 - 14142
Опубликована: Июнь 15, 2023
Electrocatalytic
reduction
of
carbon
dioxide
into
value-added
chemical
fuels
is
a
promising
way
to
achieve
neutrality.
Bismuth-based
materials
have
been
considered
as
favorable
electrocatalysts
for
converting
formic
acid.
Moreover,
size-dependent
catalysis
offers
significant
advantages
in
catalyzed
heterogeneous
processes.
However,
the
size
effects
bismuth
nanoparticles
on
acid
production
not
fully
explored.
Here,
we
prepared
Bi
uniformly
supported
porous
TiO2
substrate
electrocatalytic
by
situ
segregation
element
from
Bi4Ti3O12.
The
Bi-TiO2
electrocatalyst
with
2.83
nm
displays
Faradaic
efficiency
greater
than
90%
over
wide
potential
range
400
mV.
Theoretical
calculations
also
demonstrated
subtle
electronic
structural
evolutions
induced
variations
nanoparticles,
where
display
most
active
p-band
and
d-band
centers
guarantee
high
electroactivity
toward
CO2RR.
Advanced Energy Materials,
Год журнала:
2022,
Номер
12(29)
Опубликована: Июнь 16, 2022
Abstract
Electrochemical
structural
reconstruction
of
catalysts
may
generate
real
active
sites
that
differ
from
the
initial
catalyst,
but
is
often
ignored.
Herein,
combining
in
situ
and
ex
techniques,
it
identified
bismuth
nanosheets
(NS)
dotted
with
large
numbers
coordinatively
unsaturated
pit
produced
via
Bi(OH)
3
NS.
Such
reconstructed
Bi
NS
shows
greatly
improved
catalytic
activity
toward
CO
2
electroreduction,
a
2.6‐fold
increase
current
density
compared
intact
NS,
high
Faradaic
efficiency
for
HCOO
−
production
(>95%),
an
extraordinary
turnover
frequency
0.35
s
−1
at
−0.98
V
RHE
.
In
addition,
delivers
industrial‐relevant
325
mA
cm
−2
without
compromising
selectivity
flow
cell.
The
mechanistic
studies
demonstrate
these
acting
as
favor
stabilization
key
intermediate
*OCHO,
which
thus
facilitate
reaction
kinetics
production.
This
work
not
only
provides
unique
perspective
on
construction
efficient
also
implies
importance
recognition
reconstruction.
Journal of the American Chemical Society,
Год журнала:
2023,
Номер
145(25), С. 14101 - 14111
Опубликована: Июнь 15, 2023
Developing
industrial-grade
electroreduction
of
CO2
to
produce
formate
(HCOO–)/formic
acid
(HCOOH)
depends
on
highly
active
electrocatalysts.
However,
structural
changes
due
the
inevitable
self-reduction
catalysts
result
in
severe
long-term
stability
issues
at
current
density.
Herein,
linear
cyanamide
anion
([NCN]2–)-constructed
indium
nanoparticles
(InNCN)
were
investigated
for
reduction
HCOO–
with
a
Faradaic
efficiency
up
96%
under
partial
density
(jformate)
250
mA
cm–2.
Bulk
electrolysis
jformate
400
cm–2
requires
only
−0.72
VRHE
applied
potential
iR
correction.
It
also
achieves
continuous
production
pure
HCOOH
∼125
160
h.
The
excellent
activity
and
InNCN
are
attributed
its
unique
features,
including
strongly
σ-donating
[NCN]2–
ligands,
transformation
[N═C═N]2–
[N≡C–N]2–,
open
framework
structure.
This
study
affirms
metal
cyanamides
as
promising
novel
materials
electrocatalytic
reduction,
broadening
variety
understanding
structure–activity
relationships.
Energy & Environmental Science,
Год журнала:
2023,
Номер
16(9), С. 3885 - 3898
Опубликована: Янв. 1, 2023
Using
surface-engineered
chemical
composites
to
enhance
the
binding
energy
of
reaction
intermediates
and
conductivity
is
an
attractive
route
achieve
a
high
partial
current
density
increased
yield
target
products.
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(14)
Опубликована: Фев. 16, 2024
Abstract
The
acidic
electrochemical
CO
2
reduction
reaction
(CO
RR)
for
direct
formic
acid
(HCOOH)
production
holds
promise
in
meeting
the
carbon‐neutral
target,
yet
its
performance
is
hindered
by
competing
hydrogen
evolution
(HER).
Understanding
adsorption
strength
of
key
intermediates
electrolyte
indispensable
to
favor
RR
over
HER.
In
this
work,
high‐density
Sn
single
atom
catalysts
(SACs)
were
prepared
and
used
as
catalyst,
reveal
pH‐dependent
coverage
*CO
−
intermediatethat
enables
enhanced
towards
HCOOH
production.
At
pH=3,
SACs
could
deliver
a
high
Faradaic
efficiency
(90.8
%)
formation
corresponding
partial
current
density
up
−178.5
mA
cm
−2
.
detailed
situ
attenuated
total
reflection
Fourier
transform
infrared
(ATR‐FTIR)
spectroscopic
studies
that
favorable
alkaline
microenvironment
formed
near
surface
SACs,
even
electrolyte.
More
importantly,
intermediate
unravelled
which
turn
affects
competition
between
HER
