Nature Communications,
Journal Year:
2019,
Volume and Issue:
10(1)
Published: Sept. 13, 2019
Abstract
The
synergistic
nature
of
bicomponent
catalysts
remains
a
challenging
issue,
due
to
the
difficulty
in
constructing
well-defined
catalytic
systems.
Here
we
study
origin
effects
CoO
x
-Pt
for
selective
hydrogenation
by
designing
series
closely
contacted
Pt/TiO
2
and
spatially
separated
/TiO
/Pt
atomic
layer
deposition
(ALD).
For
/Pt,
platinum
are
walls
titania
nanotubes,
intimacy
can
be
precisely
tuned.
Like
,
shows
higher
selectivity
cinnamyl
alcohol
than
monometallic
TiO
indicating
that
nanoscale
almost
has
no
influence
on
selectivity.
enhanced
is
ascribed
increased
oxygen
vacancy
resulting
from
promoted
hydrogen
spillover.
Moreover,
platinum-oxygen
interfacial
sites
identified
as
active
selectively
covering
or
ALD.
Our
provides
guide
understanding
bifunctional
catalysts.
Advanced Materials,
Journal Year:
2019,
Volume and Issue:
31(30)
Published: May 30, 2019
Abstract
Semiconductor
photocatalysis
is
recognized
as
a
promising
strategy
to
simultaneously
address
energy
needs
and
environmental
pollution.
Titanium
dioxide
(TiO
2
)
has
been
investigated
for
such
applications
due
its
low
cost,
nontoxicity,
high
chemical
stability.
However,
pristine
TiO
still
suffers
from
utilization
of
visible
light
photogenerated‐charge‐carrier
recombination
rate.
Recently,
photocatalysts
modified
by
dual
cocatalysts
with
different
functions
have
attracted
much
attention
the
extended
absorption,
enhanced
reactant
adsorption,
promoted
charge‐carrier‐separation
efficiency
granted
various
cocatalysts.
Recent
progress
on
component
structural
design
in
summarized.
Depending
their
components,
decorated
can
be
divided
into
following
categories:
bimetallic
cocatalysts,
metal–metal
oxide/sulfide
metal–graphene
metal
oxide/sulfide–graphene
architecture,
they
categorized
randomly
deposited
binary
facet‐dependent
selective‐deposition
core–shell
Concluding
perspectives
challenges
opportunities
further
exploration
cocatalyst–modified
are
presented.
ACS Nano,
Journal Year:
2017,
Volume and Issue:
12(1), P. 651 - 661
Published: Dec. 31, 2017
Metal–organic
frameworks
(MOFs)
have
been
used
for
photodynamic
therapy
(PDT)
of
cancers
by
integrating
photosensitizers,
which
cause
cytotoxic
effects
on
cancer
cells
converting
tumor
oxygen
into
reactive
singlet
(1O2).
However,
the
PDT
efficiency
MOFs
is
severely
limited
hypoxia.
Herein,
decorating
platinum
nanozymes
photosensitizer
integrated
MOFs,
we
report
a
simple
yet
versatile
strategy
enhanced
PDT.
The
nanoparticles
homogeneously
immobilized
possess
high
stability
and
catalase-like
activity.
Thus,
our
nanoplatform
can
facilitate
formation
1O2
in
hypoxic
site
via
H2O2-activated
evolvement
O2,
more
serious
damage
to
cells.
Our
finding
highlights
that
composites
potential
serve
as
efficient
agents
therapy,
will
open
an
avenue
toward
biological
applications.
Advanced Materials,
Journal Year:
2018,
Volume and Issue:
31(38)
Published: Aug. 19, 2018
Abstract
Photocatalysis
for
solar‐driven
reactions
promises
a
bright
future
in
addressing
energy
and
environmental
challenges.
The
performance
of
photocatalysis
is
highly
dependent
on
the
design
photocatalysts,
which
can
be
rationally
tailored
to
achieve
efficient
light
harvesting,
promoted
charge
separation
transport,
accelerated
surface
reactions.
Due
its
unique
feature,
semiconductors
with
hollow
structure
offer
many
advantages
photocatalyst
including
improved
scattering
reduced
distance
migration
directed
separation,
abundant
reactive
sites
shells.
Herein,
relationship
between
nanostructures
their
photocatalytic
are
discussed.
summarized
as:
1)
enhancement
harvesting
through
slow
photon
effects;
2)
suppression
recombination
by
reducing
transfer
directing
carriers;
3)
acceleration
increasing
accessible
areas
separating
redox
spatially.
Toward
end
review,
some
insights
into
key
challenges
perspectives
structured
photocatalysts
also
discussed,
good
hope
shed
further
promoting
rapid
progress
this
dynamic
research
field.
Chemical Reviews,
Journal Year:
2019,
Volume and Issue:
120(2), P. 1184 - 1249
Published: Oct. 3, 2019
The
surface
and
interfaces
of
heterogeneous
catalysts
are
essential
to
their
performance
as
they
often
considered
be
active
sites
for
catalytic
reactions.
With
the
development
nanoscience,
ability
tune
interface
nanostructures
has
provided
a
versatile
tool
optimization
catalyst.
In
this
Review,
we
present
control
nanoparticle
in
context
oxygen
reduction
reaction
(ORR),
electrochemical
CO2
(CO2
RR),
tandem
catalysis
three
sections.
first
section,
start
with
activity
ORR
on
nanoscale
then
focus
approaches
optimize
Pt-based
catalyst
including
using
alloying,
core-shell
structure,
high
area
open
structures.
section
RR,
where
composition
plays
dominant
role,
cover
its
fundamentals
different
nanosized
metal
catalysts.
For
catalysis,
adjacent
single
nanostructure
catalyze
sequential
reactions,
describe
concept
principle,
synthesis
methodology,
application
Chemical Society Reviews,
Journal Year:
2020,
Volume and Issue:
49(10), P. 2937 - 3004
Published: Jan. 1, 2020
Catalytic
conversion
of
CO2
to
produce
fuels
and
chemicals
is
attractive
in
prospect
because
it
provides
an
alternative
fossil
feedstocks
the
benefit
converting
cycling
greenhouse
gas
on
a
large
scale.
In
today's
technology,
converted
into
hydrocarbon
Fischer-Tropsch
synthesis
via
water
shift
reaction,
but
processes
for
direct
such
as
methane,
methanol,
C2+
hydrocarbons
or
syngas
are
still
far
from
large-scale
applications
processing
challenges
that
may
be
best
addressed
by
discovery
improved
catalysts-those
with
enhanced
activity,
selectivity,
stability.
Core-shell
structured
catalysts
relatively
new
class
nanomaterials
allow
controlled
integration
functions
complementary
materials
optimised
compositions
morphologies.
For
conversion,
core-shell
can
provide
distinctive
advantages
addressing
catalyst
sintering
activity
loss
reforming
processes,
insufficient
product
selectivity
thermocatalytic
hydrogenation,
low
efficiency
photocatalytic
electrocatalytic
hydrogenation.
preceding
decade,
substantial
progress
has
been
made
synthesis,
characterization,
evaluation
potential
applications.
Nonetheless,
remain
inexpensive,
robust,
regenerable
this
class.
This
review
in-depth
assessment
these
thermocatalytic,
photocatalytic,
valuable
hydrocarbons.
Proceedings of the National Academy of Sciences,
Journal Year:
2020,
Volume and Issue:
117(12), P. 6376 - 6382
Published: March 11, 2020
Significance
Photocatalysts
frequently
require
simultaneous
loading
of
oxidative
and
reductive
cocatalysts
to
achieve
both
efficient
half-reactions
within
a
single
material.
Nevertheless,
unregulated
distribution
two
will
result
in
direct
contact
between
oxidation
reduction
centers,
leading
detrimental
charge
recombination.
This
research
presents
center/edge
approach
load
redox
with
controlled
physical
separation
atomistic
scale
using
single-atom
architecture.
spatial
is
critical
for
enhancing
surface
achieving
H
2
O
production.
We
report
that
are
spatially
separated
on
two-dimensional
(2D)
photocatalyst,
which
opens
an
reactions
2D
photocatalysts.
Journal of Materials Chemistry A,
Journal Year:
2020,
Volume and Issue:
8(5), P. 2286 - 2322
Published: Jan. 1, 2020
This
review
outlines
recent
advances
in
strategies
to
improve
the
photoreaction
stability
of
photocatalytic/photoelectrochemical
water
splitting
systems,
and
discusses
tactics
involved
improving
such
systems
with
different
photocorrosion
mechanisms.
Catalysts,
Journal Year:
2019,
Volume and Issue:
9(3), P. 276 - 276
Published: March 18, 2019
Photocatalytic
water
splitting
is
a
sustainable
technology
for
the
production
of
clean
fuel
in
terms
hydrogen
(H2).
In
present
study,
(H2)
efficiency
three
promising
photocatalysts
(titania
(TiO2-P25),
graphitic
carbon
nitride
(g-C3N4),
and
cadmium
sulfide
(CdS))
was
evaluated
detail
using
various
sacrificial
agents.
The
effect
most
commonly
used
agents
recent
years,
such
as
methanol,
ethanol,
isopropanol,
ethylene
glycol,
glycerol,
lactic
acid,
glucose,
sodium
sulfide,
sulfite,
sulfide/sodium
sulfite
mixture,
triethanolamine,
were
on
TiO2-P25,
g-C3N4,
CdS.
H2
experiments
carried
out
under
simulated
solar
light
irradiation
an
immersion
type
photo-reactor.
All
performed
without
any
noble
metal
co-catalyst.
Moreover,
photolysis
executed
to
study
generation
absence
catalyst.
results
discussed
specifically
chemical
reactions,
pH
reaction
medium,
hydroxyl
groups,
alpha
hydrogen,
chain
length
revealed
that
glucose
glycerol
are
suitable
oxide
photocatalyst.
Triethanolamine
ideal
agent
A
remarkable
amount
produced
from
mixture
findings
this
would
be
highly
beneficial
selection
particular
