Accounts of Chemical Research,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 13, 2025
ConspectusFor
sustainable
development,
exploring
renewable
resources
is
an
urgent
priority.
Nonfood
biomass,
one
of
the
largest
on
Earth,
primarily
comprises
three
key
components:
lignin
(ca.
15-30%),
cellulose
35-50%),
and
hemicellulose
20-30%).
Theoretically,
nonfood
biomass
can
be
converted
into
green
chemicals
energy.
However,
most
studies
have
focused
generation
carbon-based
energy
under
harsh
conditions,
often
resulting
in
lower
selectivities.
Therefore,
further
efforts
to
explore
efficient
selective
methods
for
producing
hydrogen
(H2)
are
essential
promoting
practical
applications
biomass.
In
this
Account,
we
summarize
our
contributions
transformation
its
derivatives
aryl
compounds
H2.
These
transformations
were
achieved
using
visible-light-induced
photocatalytic
systems
that
generate
active
radicals
selectively
cleave
C-C,
C-O,
C-H,
O-H
bonds
mild
without
noble
metals.
First,
compound
production
was
by
chemoselective
cleavage
C-C
C-O
carboxyl
ether
radical
cations.
Specifically,
charge-transfer
complex
induced
carboxylic
acids,
which
platform
molecules
derived
from
oxidation;
free
form
facilitated
model
4-O-5
linkage.
Moreover,
arenols
alcohols
obtained
via
cooperation
cation
vanadate-induced
models
various
linkages.
Second,
developed
a
streamlined
strategy
H2
one-pot,
two-step
route
with
formic
acid
(HCO2H)
as
intermediate
storage
thermocatalysis.
Using
photoredox
catalysis,
HCO2H
initially
alkoxy
radical-induced
gradual
cellulose,
hemicellulose,
glucose,
their
derivatives.
Subsequently,
biomass-based
realized
hydroxyl
(·OH)-induced
C-H
following
bonds,
nickel
catalysis.
Third,
highest
capability
water
reforming.
This
process
utilized
followed
generated
carbon
cations
electrocatalysis,
inducing
well-organized
O-H,
bonds.
We
anticipate
these
insights
will
inspire
development
more
efficient,
stable,
cost-effective
catalytic
systems,
accelerating
utilization
resource
driving
other
related
significant
transformations.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(37)
Published: June 20, 2024
The
cleavage
of
C-O
bonds
is
one
the
most
promising
strategies
for
lignin-to-chemicals
conversion,
which
has
attracted
considerable
attention
in
recent
years.
However,
current
catalytic
system
capable
selectively
breaking
lignin
often
requires
a
precious
metal
catalyst
and/or
harsh
conditions
such
as
high-pressure
H
Green Chemistry,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
Pd/TiO
2
(anatase)
with
an
appropriate
Pd
particle
size
(3
nm)
effectively
catalyzed
the
selective
hydrogenation
of
guaiacol
to
2-methoxycyclohexanone
in
water
solvent.
Recycling
of
epoxy
composites,
one
the
most
widely
utilized
thermoset
plastics,
is
importance
for
achieving
circular
economy
as
demand
lightweight
materials
in
field
sustainable
technologies
soaring.
Although
catalytic
hydrogenolysis
resins
provides
a
promising
approach
to
recover
valuable
fillers
and
phenolic
compounds
from
there
lack
reusable
heterogeneous
catalyst
this
purpose.
Here,
we
report
robust
Ni−Pd
bimetallic
nanoparticles
supported
on
CeO2
(Ni−Pd/CeO2)
under
mild
conditions
(180
°C,
1
atm
H2).
Mechanistic
studies
revealed
that
Pd-induced
reduction
Ni2+
Ni0
key
high
efficiency
catalyst.
Benefiting
its
nature,
Ni−Pd/CeO2
can
be
easily
recycled
reused
several
times.
The
also
applicable
decomposition
carbon
fiber-reinforced
fibers
bisphenol
A,
indicating
potential
application
our
system
toward
recycling
composites.
