Catalysts,
Год журнала:
2024,
Номер
14(10), С. 659 - 659
Опубликована: Сен. 24, 2024
Photoreduction
of
CO2
into
the
chemical
feedstocks
fuels
provides
a
green
way
to
help
solve
both
energy
crisis
and
carbon
emission
issues.
Nevertheless,
undesirable
charge
separation
migration,
as
well
rapid
reverse
recombination
results
in
unsatisfactory
photocatalytic
activity
most
conjugated
microporous
polymers
(CMPs).
Herein,
pair
donor–acceptor
(D-A)
CMPs
for
photoconversion
was
developed
through
position
isomerism
by
altering
linkage
sites.
The
show
that
Py-D27F
with
2,7-site
exhibits
completely
structure
large
molecular
dipole
moment,
thus
significantly
accelerating
transfer.
As
result,
achieves
higher
yield
320.9
μmol
g−1
h−1
CO2-to-CO
photoreduction
(without
addition
any
photosensitizers
precious
metals),
which
is
about
three-fold
greater
than
Py-D36F
(3,6-site
linkage).
This
study
valuable
idea
exploring
outstanding
CMP
photocatalysts
efficient
processing
photocatalysis.
Growing
global
population,
escalating
energy
consumption,
and
climate
change
threaten
future
security.
Fossil
fuel
combustion,
primarily
coal,
oil,
natural
gas,
exacerbates
the
greenhouse
effect
driving
warming
through
CO
Chemical Society Reviews,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 1, 2024
Metal
oxides,
metal
sulfides,
MXenes,
and
metal–organic
frameworks
act
as
catalysts,
while
covalent
organic
frameworks,
carbon
nitrides,
phosphides,
graphene
oxides
serve
cocatalysts
for
CO
2
photoreduction
to
multicarbon
products.
Catalysis Science & Technology,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
The
introduction
of
oxygen
vacancies
into
hexagonal
In
2
O
3
nanorods
via
H
treatment
has
significantly
enhanced
both
the
yield
and
selectivity
C
5
OH
in
photothermal
reduction
CO
.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 16, 2025
Abstract
For
photocatalytic
CO
2
reduction,
traditional
ABO
3
perovskite
oxides
have
suffered
from
the
natural
surface
covered
by
passivated
AO
layer,
resulting
in
low
activity.
Herein,
double
Sr
TiFeO
6
is
used
as
a
precursor
and
citric
acid
employed
to
selectively
dissolve
A‐site
cation,
obtaining
v
‐Sr
with
abundant
vacancies.
Without
using
any
co‐catalysts
or
sacrificial
agents,
achieves
efficient
photoreduction
of
CH
4
91%
selectivity
43.17
µmol
g
−1
h
yield,
which
almost
five
times
that
original
.
The
results
indicate
removing
can
increase
concentration
oxygen
vacancies
significantly
reduce
exciton
binding
energy
0.61
0.32
eV,
thereby
enhancing
charge
transfer
efficiency.
Furthermore,
adjust
electronic
structure,
leading
decrease
e
electrons
occupancy
on
active
B‐site.
This
shift
reaction
intermediates
strong
adsorption
moderate
adsorption.
Specifically,
barrier
water
oxidation
reaction,
rate‐determining
step
for
overall
greatly
reduced.
work
provides
vivid
case
modulating
structure
oxide
through
introducing
defects
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 16, 2025
The
renewable
electricity-driven
CO2
and
CO
reduction
represents
a
promising
approach
for
reducing
the
footprint
toward
carbon
neutrality.
Substantial
research
developments
have
been
achieved
in
designing
catalysts
reaction
interfaces
enhanced
electrocatalytic
activity
selectivity,
investigation
understanding
of
complex
mechanisms
also
extensively
investigated
by
both
situ
characterizations
theoretical
investigations.
Although
quasi-equilibrium
rate-determining
step
assumptions
are
widely
used
electrochemical
kinetics,
overall
rate
is
generally
determined
series
elementary
steps,
influence
certain
can
be
quantified
based
on
degree
control
theory.
For
complicated
networks
CO(2)
reduction,
not
only
steps
but
subsequent
selectivity-determining
play
critical
roles,
especially
product
selectivity.
In
this
Perspective,
we
summarize
strategies
that
tune
selectivity
their
impacts
respectively.
addition,
describe
coupling
electroreduction
with
other
(electro)chemical
reactions,
such
as
nitrite
methane
oxidation,
to
form
value-added
products.
At
end,
current
challenges
opportunities
field
discussed
inspire
further
development
next
stage.
Abstract
Surface
and
interface
engineering
of
catalysts
from
atomic
level
to
macroscale
exhibit
good
performance
in
regulating
conversion,
selectivity,
stability.
Electrospinning
offers
such
multiscale
flexibility
tuning
surface
structures
compositions
for
the
design
fiber
catalysts.
This
review
presents
an
overview
on
electrospun
nanofibers
heterogeneous
designing.
First,
building
strategies
catalytic
at
different
scales
are
introduced.
Then,
typical
research
achievements
regulation
nanofiber
summarized,
including
vacancy
doping
microscale,
heterojunction
interfaces
mesoscale,
surfaces/interfaces
with
special
wettability
macroscale.
The
reactions
introduced
that
involve
classical
small
molecule
hydrogenation,
oxygen
evolution
reaction,
pollutant
photocatalytic
degradation,
as
well
recently
emerging
CO
2
reduction
reaction
nitrate/nitrite
reduction.
Finally,
challenges
future
tendency
highlighted.
Catalysis Science & Technology,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
The
introduction
of
oxygen
vacancies
into
In
2
O
3
nanorods
significantly
improves
the
yield
and
selectivity
CO
in
photothermal
reduction
hydrogenation.
Abstract
CO
2
is
a
major
contributor
to
global
warming,
leading
severe
environment
and
human
health
consequences.
Catalytic
hydrogenation
has
emerged
as
one
of
the
most
promising
strategies
mitigate
emissions.
However,
catalytic
performance
existing
catalysts
remains
suboptimal.
Recent
studies
have
highlighted
potential
oxygen
vacancy
(OV)
engineering
enhance
by
activating
reactants,
accelerating
electron
transport,
tuning
surface
chemical
properties
catalysts.
Despite
its
importance,
comprehensive
review
OV
in
reactions
lacking.
This
systematically
examines
recent
advancements
for
design
novel
materials
reactions.
It
covers
key
aspects
such
construction
methods,
characterization
techniques,
functions
OVs.
Additionally,
addresses
challenges
catalyst
synthesis
characterization,
while
outlining
future
directions
field.
aims
provide
valuable
insights
development
highly
efficient
