ACS Applied Nano Materials,
Journal Year:
2023,
Volume and Issue:
6(7), P. 5909 - 5917
Published: March 30, 2023
Plasmonic
Au
nanoparticles
were
deposited
over
photocatalytic
BiVO4/BiOBr
nanosheets
with
different
loadings
in
the
range
of
0.5–5%
(w/w)
to
boost
reactivity
via
surface
plasmonic
resonance.
The
results
showed
that
highest
benzyl
alcohol
conversion
(100%)
and
maximum
benzaldehyde
yield
(99%)
obtained
using
BiVO4/BiOBr/Au
3%
after
4
h
irradiation.
Electron
paramagnetic
resonance
analysis
trapping
experiments
revealed
singlet
oxygen
is
dominant
species
produced
within
system
suggest
it
main
driving
oxidation
benzaldehyde.
proposed
mechanism
involves
irradiation
light
excite
its
electrons
state
produce
excitons,
which
eventually
produces
triplet
excitons
intersystem
crossing.
Dissolved
O2
subsequently
reacts
these
oxygen.
Moreover,
energy
barrier
intrinsic
reaction
indicated
thermodynamically
favorable.
These
demonstrate
unique
effects
on
activity,
can
be
adapted
selective
reactions.
Angewandte Chemie International Edition,
Journal Year:
2023,
Volume and Issue:
63(5)
Published: Dec. 12, 2023
Abstract
Breaking
the
trade‐off
between
activity
and
selectivity
has
perennially
been
a
formidable
endeavor
in
field
of
hydrogen
peroxide
(H
2
O
)
photosynthesis,
especially
side‐on
configuration
oxygen
(O
on
catalyst
surface
will
cause
cleavage
O−O
bonds,
which
drastically
hinders
H
production
performance.
Herein,
we
present
an
atomically
heteroatom
P
doped
ZnIn
S
4
with
tunable
adsorption
to
accelerate
ORR
kinetics
essential
for
solar‐driven
production.
Indeed,
spectroscopy
characterizations
(such
as
EXAFS
situ
FTIR)
DFT
calculations
reveal
that
at
substitutional
interstitial
sites,
not
only
optimizes
coordination
environment
Zn
active
but
also
facilitates
electron
transfer
sites
improves
charge
density,
avoiding
breakage
bonds
reducing
energy
barriers
As
result,
is
regulated
from
(Yeager‐type)
end‐on
(Pauling‐type),
resulting
accelerated
874.94
2107.66
μmol
g
−1
h
.
This
finding
offers
new
avenue
toward
strategic
tailoring
by
rational
design
photocatalyst.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: May 9, 2024
Abstract
Surface
reconstruction,
reorganizing
the
surface
atoms
or
structure,
is
a
promising
strategy
to
manipulate
materials'
electrical,
electrochemical,
and
catalytic
properties.
Herein,
rapid
reconstruction
of
indium
sulfide
(In
2
S
3
)
demonstrated
via
high‐temperature
flame
treatment
improve
its
charge
collection
The
process
selectively
transforms
In
into
diffusionless
O
layer
with
high
crystallinity.
Additionally,
it
controllably
generates
bulk
sulfur
vacancies
within
few
seconds,
leading
surface‐reconstructed
(sr‐In
).
When
using
those
sr‐In
as
photoanode
for
photoelectrochemical
water
splitting
devices,
these
dual
functions
/bulk
reduce
recombination
in
region,
thus
improving
photocurrent
density
stability.
With
optimized
demonstrates
significant
8.5
mA
cm
−2
at
1.23
V
versus
reversible
hydrogen
electrode
(RHE),
marking
2.5‐fold
increase
compared
pristine
(3.5
More
importantly,
exhibits
an
impressive
7.3
0.6
RHE
iodide
oxidation
reaction.
A
practical
scalable
also
showcased
treatment.
This
work
provides
new
insights
engineering
sulfide‐based
semiconductors,
making
breakthrough
developing
efficient
solar‐fuel
energy
devices.
Energy & Environmental Science,
Journal Year:
2024,
Volume and Issue:
17(20), P. 7459 - 7511
Published: Jan. 1, 2024
This
review
provides
a
comprehensive
overview
on
the
mechanism
of
photoelectrochemical
biomass
conversion
and
highlights
extension
dual-function
cells
for
valorization
paired
with
more
valuable
half-reactions.
Science Advances,
Journal Year:
2023,
Volume and Issue:
9(45)
Published: Nov. 8, 2023
Photoelectrochemical
(PEC)
organic
transformations
occurring
at
anodes
are
a
promising
strategy
for
circumventing
the
sluggish
kinetics
of
oxygen
evolution
reaction.
Here,
we
report
free
radical-mediated
reaction
instead
direct
hole
transfer
solid/liquid
interface
PEC
oxidation
benzyl
alcohol
(BA)
to
benzaldehyde
(BAD)
with
high
selectivity.
A
bismuth
vanadate
(BiVO4)
photoanode
coated
2,2'-bipyridine-based
covalent
framework
bearing
single
Ni
sites
(Ni-TpBpy)
was
developed
drive
transformation.
Experimental
studies
reveal
that
Ni-TpBpy/BiVO4
followed
first-order
kinetics,
boosting
formation
surface-bound
·OH
radicals,
which
suppressed
further
BAD
and
provided
nearly
100%
selectivity
rate
80.63
μmol
hour-1
BA-to-BAD
conversion.
Because
alcohol-to-aldehyde
conversions
involved
in
valorizations
biomass
plastics,
this
work
is
expected
open
distinct
avenues
producing
key
intermediates
great
value.
ACS Applied Nano Materials,
Journal Year:
2023,
Volume and Issue:
6(10), P. 8927 - 8936
Published: May 9, 2023
Visible-light-driven
semiconductor-catalyzed
CO2
conversion
into
valuable
chemicals
and
industrial
feedstocks
is
one
of
the
superior
pathways
to
address
excess
carbon
emissions
energy
shortages.
Herein,
an
innovative
step-scheme
(S-scheme)
heterojunction
assembled
from
bulk
CdLa2S4
surface
rare-earth
perovskite-type
oxide
LaNiO3
with
precisely
engineered
suitable
band
alignment
employed
for
selective
photocatalytic
CO.
The
optimized
8%-LaNiO3/CdLa2S4
photocatalyst
exhibits
outstanding
CO
output
up
102.43
μmol
h–1
a
selectivity
about
83.4%,
rivaling
all
similar
incumbent
reaction
systems
CO2-to-CO
conversion.
It
highlights
effectiveness
S-scheme
LaNiO3/CdLa2S4
in
hindering
recombination
photogenerated
electron–hole
pairs.
Meanwhile,
remarkable
apparent
quantum
efficiency
(AQE)
as
high
6.76%
achieved,
well
still
maintained
at
99.5%
initial
value
after
five
cycle
tests,
revealing
repeatability
reliability
solar-to-chemical
In
addition,
experimentally
verified
alignment-boosted
mechanism
proposed.
This
study
construction
structurally
flexible
highly
designable
heterojunctions,
demonstrating
potential
application
carbon-negative
ACS Energy Letters,
Journal Year:
2023,
Volume and Issue:
8(12), P. 5192 - 5200
Published: Nov. 27, 2023
Photoelectrochemical
(PEC)
H2O2
production
has
gained
interest
as
a
green,
promising
route
to
produce
valuable
chemicals.
However,
it
suffers
from
low
Faradaic
efficiency
due
competing
O2
generation.
Here,
we
propose
plasmon-driven
band
structure
engineering
strategy
thermodynamically
regulate
the
product
selectivity
of
metal
oxide
based
PEC
photoanode.
It
is
demonstrated
that
plasmonic
near-field
generated
by
periodically
patterned
Au
nanosphere
arrays
(Au-PAT)
effectively
modulates
surface
photovoltage
and
energy
BiVO4
This
modulation
helps
photoinduced
charge
carriers
satisfy
thermodynamic
potential
required
shift
water
oxidation
reaction
(WOR)
high-value
H2O2.
As
result,
BiVO4/Au-PAT
achieves
approximately
3.3
times
higher
than
pristine
BiVO4.
These
findings
suggest
effectiveness
external
modulation,
originating
effect,
in
regulating
WOR
pathway,
providing
an
efficient
selective
value-added
production.
Small Methods,
Journal Year:
2023,
Volume and Issue:
8(2)
Published: June 29, 2023
Abstract
Aqueous
photoelectrochemical
(PEC)
cells
have
long
been
considered
a
promising
technology
to
convert
solar
energy
into
hydrogen.
However,
the
solar‐to‐H
2
(STH)
efficiency
and
cost‐effectiveness
of
PEC
water
splitting
are
significantly
limited
by
sluggish
oxygen
evolution
reaction
(OER)
kinetics
low
economic
value
produced
O
,
hindering
practical
commercialization
cells.
Recently,
organic
upgrading
reactions,
especially
for
alternative
OERs,
received
tremendous
attention,
which
improves
not
only
STH
but
also
effectiveness
overall
reaction.
In
this
review,
fundamentals
reactant‐product
cost
analysis
reactions
briefly
reviewed,
recent
advances
made
in
categorized
their
reactant
substrates,
such
as
methanol,
ethanol,
glycol,
glycerol,
complex
hydrocarbons,
then
summarized
discussed.
Finally,
current
status,
further
outlooks,
challenges
toward
industrial
applications
