Energy & Fuels,
Journal Year:
2024,
Volume and Issue:
38(8), P. 7158 - 7166
Published: April 2, 2024
Cu-based
catalysts
with
abundant
oxygen
vacancies
have
attracted
great
attention
for
the
reverse
water–gas
shift
(RWGS)
reaction
because
of
their
enhanced
activity
CO2
adsorption
and
activation.
However,
effect
vacancy
origin
on
mechanism
RWGS
are
still
unclear.
Herein,
various
Cu/CeyZr1–yOx
different
Ce/Zr
ratios
were
designed
used
RWGS,
results
showed
that
Cu/Ce0.9Zr0.1Ox
catalyst
exhibited
highest
conversion
(57.5%)
100%
CO
selectivity.
The
characterization
possessed
highly
dispersed
Cu,
vacancies,
optimized
basic
sites,
synergistic
three
factors
led
to
stability.
Both
formate
carbonate
pathways
been
confirmed
Cu/CeyZr1–yOx,
while
dominant
path
is
between
Cu/ZrO2
Cu/CeO2.
Advanced Energy Materials,
Journal Year:
2023,
Volume and Issue:
13(37)
Published: Aug. 6, 2023
Abstract
Atomically
precise
composite
site‐based
catalysts
with
new
electrocatalytic
synergistic
mechanisms
and
enhanced
activities
have
emerged
as
a
frontier
in
the
electrocatalysis
community.
This
topical
review
focuses
on
recent
research
advances
of
atomically
metal
sites‐based
electrocatalysts.
work
first
demonstrates
an
overview
configurations
sites,
including
discussion
advanced
methods
employed
for
understanding
sites.
The
then
provides
comprehensive
organization
previously
reported
methodologies
synthesizing
electrocatalysts
Representative
case
studies
are
provided,
starting
from
simple
one‐step
pyrolysis
strategy
to
species‐by‐species
multi‐step
strategy.
Based
preceding
discussions
catalyst
materials,
further
discusses
unique
raised
by
that
different
routine
single
species
systems
mainly
involve
oxygen
reduction
reaction,
evolution
hydrogen
nitrogen
carbon
dioxide
reaction.
themes
this
section
include
true
active
center
determination
sites
various
types
synergy
mechanisms.
Finally,
critical
unanswered
questions
remaining
challenges,
well
promising
underexplored
directions
identified.
Journal of the American Chemical Society,
Journal Year:
2023,
Volume and Issue:
146(2), P. 1701 - 1709
Published: Dec. 29, 2023
Mesoporous
materials
with
crystalline
frameworks
have
been
widely
explored
in
many
fields
due
to
their
unique
structure
and
feature,
but
accurate
manipulations
over
scaffolds,
mainly
composed
of
uncontrolled
polymorphs,
are
still
lacking.
Herein,
we
a
controlled
crystallization-driven
monomicelle
assembly
approach
construct
type
uniform
mesoporous
TiO2
particles
atomically
aligned
single-crystal
frameworks.
The
resultant
possess
an
angular
shape
∼80
nm
diameter,
good
mesoporosity
(a
high
surface
area
112
m2
g–1
mean
pore
size
at
8.3
nm),
highly
oriented
anatase
By
adjusting
the
evaporation
rate
during
assembly,
such
facile
solution-processed
strategy
further
enables
regulation
particle
mesopore
without
destruction
crystallites.
Such
combination
ordered
orientation
provides
both
effective
mass
charge
transportation,
leading
significant
increase
hydrogen
generation
rate.
A
maximum
evolution
12.5
mmol
h–1
can
be
realized,
along
great
stability
under
solar
light.
Our
study
is
envisaged
extend
possibility
single
crystal
growth
range
functional
ceramics
semiconductors
toward
advanced
applications.
Science Advances,
Journal Year:
2024,
Volume and Issue:
10(20)
Published: May 17, 2024
The
scalable
artificial
photosynthesis
composed
of
photovoltaic
electrolysis
and
photothermal
catalysis
is
limited
by
inefficient
CO
2
hydrogenation
under
weak
sunlight
irradiation.
Herein,
NiO
nanosheets
supported
with
Ag
single
atoms
[two-dimensional
(2D)
Ni
1
0.02
O
]
are
synthesized
for
to
achieve
1065
mmol
g
−1
hour
production
rate
1-sun
This
performance
attributed
the
coupling
effect
Ag-O-Ni
sites
enhance
weaken
adsorption,
resulting
in
1434
yield
at
300°C.
Furthermore,
we
integrate
2D
-supported
reverse
water-gas
shift
reaction
commercial
electrolytic
water
splitting
construct
a
103-m
scale
system
(CO
+
H
→
),
which
achieves
more
than
22
m
3
/day
green
syngas
an
adjustable
/CO
ratio
(0.4-3)
photochemical
energy
conversion
efficiency
>17%.
research
charts
promising
course
designing
practical,
natural
sunlight–driven
systems.
Energy & Fuels,
Journal Year:
2024,
Volume and Issue:
38(8), P. 7158 - 7166
Published: April 2, 2024
Cu-based
catalysts
with
abundant
oxygen
vacancies
have
attracted
great
attention
for
the
reverse
water–gas
shift
(RWGS)
reaction
because
of
their
enhanced
activity
CO2
adsorption
and
activation.
However,
effect
vacancy
origin
on
mechanism
RWGS
are
still
unclear.
Herein,
various
Cu/CeyZr1–yOx
different
Ce/Zr
ratios
were
designed
used
RWGS,
results
showed
that
Cu/Ce0.9Zr0.1Ox
catalyst
exhibited
highest
conversion
(57.5%)
100%
CO
selectivity.
The
characterization
possessed
highly
dispersed
Cu,
vacancies,
optimized
basic
sites,
synergistic
three
factors
led
to
stability.
Both
formate
carbonate
pathways
been
confirmed
Cu/CeyZr1–yOx,
while
dominant
path
is
between
Cu/ZrO2
Cu/CeO2.
