Advanced Materials,
Journal Year:
2023,
Volume and Issue:
35(30)
Published: April 6, 2023
Abstract
Efficient
electrochemical
hydrogen
production
and
biomass
refinery
are
crucial
for
the
decarbonization
of
various
sectors.
However,
their
energy‐intensive
nature
low
efficiency
have
hindered
practical
application.
In
this
study,
earth‐abundant
non‐toxic
photocatalysts
that
can
produce
reform
efficiently,
utilizing
unlimited
solar
energy,
presented.
The
approach
involves
using
low‐bandgap
Si
flakes
(SiF)
efficient
light‐harvesting,
followed
by
modification
with
Ni‐coordinated
N‐doped
graphene
quantum
dots
(Ni‐NGQDs)
to
enable
stable
light‐driven
reforming
production.
When
kraft
lignin
as
a
model
biomass,
SiF/Ni‐NQGDs
facilitate
record‐high
productivity
at
14.2
mmol
g
cat
−1
h
vanillin
yield
147.1
mg
under
simulated
sunlight
without
any
buffering
agent
sacrificial
electron
donors.
be
readily
recycled
noticeable
performance
degradation
owing
prevention
deactivation
via
oxidation.
This
strategy
provides
valuable
insights
into
utilization
energy
applications
electro‐synthesis
refinement.
Process Safety and Environmental Protection,
Journal Year:
2024,
Volume and Issue:
186, P. 1149 - 1168
Published: April 18, 2024
The
incorporation
of
biomass
waste
into
the
process
wealth
creation
through
production
hydrogen,
a
significant
fuel
source
for
renewable
energy.
Hydrogen
from
various
sources,
including
crop
remnants,
algae,
or
waste,
makes
use
easily
accessible
and
materials,
ensuring
an
uninterrupted
supply
without
exhausting
fossil
reserves.
Traditional
techniques,
like
gasification
pyrolysis,
used
hydrogen
residues,
present
notable
challenges
such
as
high
temperature
pressure
demands,
substantial
capital
investment,
risk
releasing
pollutants.
Conversely,
innovative
approach
photoelectrocatalytic
green
stands
at
vanguard
clean
energy
advancements,
holding
great
promise
directly
deriving
with
help
sunlight,
offering
genuinely
sustainable
eco-friendly
resolution.
integration
sunlight
extra
electrical
stimulus
biomass-to-hydrogen
conversion,
leveraging
resources
that
are
abundantly
available
continuously
renewed,
endorses
truly
nature
this
process.
resultant
fuel,
created
method,
burns
cleanly,
emitting
solely
water
vapor
thus
significantly
curbing
greenhouse
gas
emissions
air
pollution.
This
exhaustive
review
presents
detailed
evaluation
utilization
diverse
raw
covering
carbohydrates,
lignin,
triglycerides
(fats
oils),
proteins,
terpenes
production.
It
highlights
transformative
possibilities
arising
synergistic
amalgamation
electrocatalytic
(EC)
photocatalytic
(PC)
technologies,
setting
new
pioneering
era
transition
towards
effective
circular
economy.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(15)
Published: Feb. 13, 2024
Abstract
Hydrogen
is
one
of
the
most
important
energy
alternatives
to
conventional
fossil‐based
fuel.
Solar
based
photocatalytic
hydrogen
evolution
(PHE)
a
salient
approach
produce
fuel
but
its
efficiency
generally
limited
by
sluggish
and
energy‐unfavorable
oxidation
reaction.
Meanwhile,
waste
treatment
has
become
worldwide
problem
clean
highly
demanded
avoid
vast
greenhouse
emission
currently.
Inspiringly,
PHE
can
be
effectively
coupled
with
favorable
photooxidation
many
wastes,
which
kills
two
birds
stone.
In
this
review,
recent
progress
in
presented,
where
typical
solid,
liquid,
gas
wastes
have
been
briefly
discussed.
Focusing
on
understanding
complicated
reaction
mechanism
revelation
products,
cutting‐edge
techniques
for
photophysics
surface
chemistry
characterization
analyzed,
are
imperative
facilitate
following
investigation.
Finally,
developing
trend
existing
issues
current
research
also
discussed
detail
so
that
holistic
blueprint
portrayed
accelerate
their
application
realistic
world.
Journal of the American Chemical Society,
Journal Year:
2022,
Volume and Issue:
144(46), P. 21224 - 21231
Published: Nov. 9, 2022
The
electron
transfer
(ET)
from
the
conduction
band
of
semiconductor
to
surface-bound
species
is
a
key
step
in
photocatalytic
reaction
and
strongly
affects
reactivity
selectivity,
while
effect
catalyst
surface
structure
on
this
process
has
rarely
been
explored
due
lack
an
effective
method.
Herein,
we
have
developed
strategy
detect
measure
electrons'
energy
adsorbates
disclosed
facet-dependent
over
anatase
TiO2.
photogenerated
electrons
are
shallowly
confined
five-coordinated
Ti
atom
(Ti5c)
(101)
facet
with
below
1.0
eV,
deeply
six-coordinated
(Ti6c)
subsurface
(001)
higher
than
1.9
eV.
different
trap
states
affect
ET
process,
thus
regulating
activity.
Taking
formic
acid
(FA)
dehydration
as
probe
reaction,
shallow
photoexcited
TiO2
favors
FA
CO,
deep
makes
stable.
Based
knowledge,
successfully
controlled
selectivity
oxidation
biopolyols
via
selectively
exposing
Through
controlling
(001)/(101)
facet,
wide
range
can
be
converted
into
or
CO
up
80%.
present
work
provides
new
horizon
design
systems.
