ACS Nano,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 17, 2025
To
reduce
the
environmental
impact
of
plastics,
an
increasing
number
high-performance
sustainable
materials
have
emerged.
Among
them,
wood-based
structural
gained
growing
attention
due
to
their
outstanding
mechanical
and
thermal
properties.
Here,
we
introduce
phosphate
groups
onto
wood
veneers
for
surface
nanofibrillation,
effectively
altering
both
molecular
structure
morphology
wood,
which
enhances
interactions
between
endows
with
excellent
fire
resistance
With
these
phosphorylated
building
blocks,
"chemical
welding"
(CWSMs)
obtained
through
chemical
cross-linking
exhibit
The
flexural
strength
CWSM
reaches
225
MPa,
modulus
16
GPa,
surpassing
those
various
types
natural
wood.
At
same
time,
phosphorylation
has
endowed
resistance,
a
limiting
oxygen
index
reaching
49%,
making
it
completely
noncombustible.
More
importantly,
as
biomass-based
material,
exhibits
mechanical,
thermal,
properties
degradability
far
superior
traditional
petroleum-based
ideal
candidate
plastic
replacement.
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: Nov. 23, 2024
Abstract
Photothermal
catalysis
is
a
promising
strategy
to
combine
the
advantages
of
both
thermal-catalysis
and
photocatalysis.
Herein
we
achieve
protolignin
conversion
aromatics
via
photothermal
catalytic
transfer
hydrogenolysis
process
intensified
by
in-situ
protection
strategy.
The
Pd/TiO
2
at
140
°C
with
UV
irradiation
can
catalyze
reforming
primary
alcohols
aldehydes
active
H*
species,
which
further
participate
in
acetalation
1,3-diol
group
β-O-4
linkage
mediate
C
β
–OAr
bonds,
respectively.
birch
sawdust
ethanol
as
hydrogen
donor
provides
40
wt%
yield
phenolic
monomers,
compared
an
11
monomer
obtained
from
extracted
1,3-diol-protected
lignin
under
same
conditions.
synergistic
effect
photocatalysis
contributes
prior
cleavage
bond
before
other
C–O
bonds.
feasibility
solar-light-driven
system
demonstrated.
