Photo(electro)catalytic Water Splitting for Hydrogen Production: Mechanism, Design, Optimization, and Economy
Molecules,
Год журнала:
2025,
Номер
30(3), С. 630 - 630
Опубликована: Янв. 31, 2025
As
an
energy
carrier
characterized
by
its
high
density
and
eco-friendliness,
hydrogen
holds
a
pivotal
position
in
transition.
This
paper
elaborates
on
the
scientific
foundations
recent
progress
of
photo-
electro-catalytic
water
splitting,
including
corresponding
mechanism,
material
design
optimization,
economy
production.
It
systematically
reviews
research
photo(electro)catalytic
materials,
oxides,
sulfides,
nitrides,
noble
metals,
non-noble
metal,
some
novel
photocatalysts
provides
in-depth
analysis
strategies
for
optimizing
these
materials
through
design,
component
adjustment,
surface
modification.
In
particular,
it
is
pointed
out
that
nanostructure
regulation,
dimensional
engineering,
defect
introduction,
doping,
alloying,
functionalization
can
remarkably
improve
catalyst
performance.
The
importance
adjusting
reaction
conditions,
such
as
pH
addition
sacrificial
agents,
to
boost
catalytic
efficiency
also
discussed,
along
with
comparison
cost-effectiveness
different
production
technologies.
Despite
significant
advancements
made
splitting
technology,
this
highlights
challenges
faced
field,
development
more
efficient
stable
photo(electro)catalysts,
improvement
system
conversion
efficiency,
cost
reduction,
promotion
technology
industrialization,
addressing
environmental
issues.
Язык: Английский
Maneuvering the Electronic State and Active Site of Assembled-Gold Nanoclusters through Polyoxometalate Implantation for Heterogeneous Green-Light Photocatalysis
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 25, 2025
Gold
nanoclusters
(AuNCs)
exhibit
unique
molecule-like
optical
and
electronic
properties,
making
them
promising
candidates
for
photocatalysis.
However,
their
application
as
primary
photocatalysts
in
heterogeneous
systems
is
limited
by
rapid
electron
recombination,
small
size,
high
solubility.
To
overcome
these
limitations,
we
developed
an
approach
combining
AuNCs
assemblies
with
trap
centers
to
enhance
charge
separation
transfer.
Using
a
depletion-driven
assembly
method,
Keggin-type
polyoxometalates
(POMs),
Na10SiW9O34
(SiW9),
were
uniformly
embedded
within
spherical
of
glutathione-protected
AuNCs,
forming
gold
superclusters
(AuSCs).
The
resulting
AuSCs@SiW9
exhibited
complete
photoluminescence
quenching,
enhanced
metallicity,
stabilized
photogenerated
electrons
via
SiW9,
enabling
use
photocatalysts.
efficiently
catalyzed
the
functionalization
terminal
aryl
alkyne
N-bromosuccinimide
(NBS),
achieving
tribromoketones
yield
94%,
significantly
outperforming
AuSCs
lower
or
higher
metallicity
(38
65%,
respectively).
Mechanistic
studies
revealed
that
improved
promotes
transfer
complex
formation
NBS,
while
SiW9
stabilizes
electrons,
enhancing
density
under
light
irradiation.
strong
visible-light
absorption,
photostability,
solvent
dispersibility,
recyclability
up
five
cycles
scalability
broader
applications.
This
strategy
positions
viable
photocatalyst,
expanding
its
potential
photocatalysis
toward
synthesizing
molecules.
Язык: Английский