Since
stationary
phase
is
the
key
to
chromatographic
separations,
it
worth
pursuing
simpler
and
more
efficient
methods
for
preparing
phases.
In
this
work,
co-condensation
pseudomorphic
transformation
were
combined
prepare
a
functionalized
shell
on
surface
of
silica
core
in
one
step,
different
kinds
silylation
reagents
used
investigate
self-assembly
mechanism.
3-Mercaptopropyltriethoxysilane
facilitated
formation
during
transformation,
sulfhydryl
groups
distributed
uniformly.
These
core-shell
particle
applied
hydrophilic
chromatography
ion-exchange
successfully
after
oxidation
sulfonic
acid
groups.
Pseudomorphic
with
silylated
has
advantage
rapid
preparation
Catalysis Science & Technology,
Journal Year:
2024,
Volume and Issue:
14(4), P. 1008 - 1016
Published: Jan. 1, 2024
Developing
a
cost-effective
and
multi-functional
heterogeneous
catalyst
for
various
biomass
transformations
is
important
in
both
academic
industrial
communities.
Langmuir,
Journal Year:
2024,
Volume and Issue:
40(17), P. 8950 - 8960
Published: April 16, 2024
Highly
selective
synthesis
of
primary
amines
from
renewable
biomass
has
attracted
increasing
attention,
but
it
still
faces
great
challenges
in
chemical
industry
applications.
In
this
study,
an
electron-rich
Ru
catalyst
was
constructed
by
doping
N
into
coffee
biochar
using
a
one-pot
carbonization
method
(Ru/NCB-600).
Ru/NCB-600
showed
high
catalytic
activity
and
yield
for
the
reductive
amination
furfural
with
green
cheap
NH3
H2.
The
excellent
performance
closely
correlated
to
formation
Ruδ−
species
(Ruδ−–Nxδ+),
which
endowed
enhanced
H2
adsorption
activation
ability.
rate
95.6
gfurfurylamine·gRu–1·h–1
furfurylamine
(98.6%)
at
50
°C.
can
also
be
used
various
carbonyl
compounds
good
(95.4–99%).
This
study
thus
provides
potential
pathway
highly
regulating
electron
density
Ru.
ACS Sustainable Chemistry & Engineering,
Journal Year:
2024,
Volume and Issue:
12(18), P. 7211 - 7225
Published: April 23, 2024
Selective
synthesis
of
cyclopentanol
(CPL)
from
biomass-derived
furfural
(FAL)
is
highly
attractive,
but
it
still
faces
serious
challenges.
In
this
work,
an
alloyed
Cu–Co
catalyst
derived
Cu–Co–Al
layered
double
hydroxide
(LDH)
was
grafted
onto
sulfur-doped
coffee
biochar
for
the
first
time
(Cu–Co–Al/SCB).
Cu–Co–Al/SCB
achieved
a
maximum
CPL
yield
97.5%
and
high
turnover
frequency
(TOF)
15.6
h–1
in
selective
hydrogenative
rearrangement
FAL
at
140
°C.
The
characterization
results
demonstrated
that
grafting
SCB
formation
alloys
strong
interaction
between
them.
Further
activity
tests
dispersed
alloy
situ
generated
Brønsted
acid
sites
collaboratively
catalyzes
to
over
Cu–Co–Al/SCB,
endowed
with
remarkable
stability.
As
result,
promising
FAL.
