Lewis Acid–Base Pairs Constructed via Lattice Regulation for Ultrafast Catalytic Transfer Hydrogenation
ACS Sustainable Chemistry & Engineering,
Год журнала:
2025,
Номер
13(1), С. 471 - 481
Опубликована: Янв. 2, 2025
Catalytic
transfer
hydrogenation
(CTH)
strongly
relies
on
the
synergistic
interaction
between
Lewis
acid
and
base.
Highly
active,
high-density,
well-dispersed
acid–base
pairs
(LP)
are
crucial
to
achieving
efficient
CTH
catalysis,
yet
forming
such
an
ideal
interface
remains
challenging.
To
address
this,
a
novel
construction
strategy
is
presented,
which
leverages
regulation
of
layered
double
hydroxide
(LDH)
lattice
structure
establish
LP
interface.
Supercritical
isopropyl
alcohol
(SCIP)
was
employed
selectively
remove
hydroxyl
groups
hydrogen
bonds
from
NiAl-LDH
surface,
constructing
rich
MCUS
Ni-OOH
at
LDH
in
simple,
controllable,
environmentally
friendly
way.
The
formation
process
SCIP
analyzed
using
series
dynamic
characterization.
Key
factors
restricting
were
identified
by
comparing
results
across
different
precursor
preparation
methods
temperatures
treatment.
On
this
basis,
one-pot
reaction
system
established.
Within
system,
catalyst
ethyl
levulinate
(EL)
γ-valerolactone
(GVL)
co-occur.
simplifies
exhibits
ultrahigh
catalytic
efficiency,
with
GVL
rate
0.780
molGVL·g–1·h–1.
Compared
traditional
systems
catalysts,
developed
demonstrates
significant
advantages
exhibit
excellent
cyclic
stability
after
stabilization.
combination
enabled
friendly,
economical,
biomass-based
synthesis.
Язык: Английский
A novel DOPO-AS/M(OH)(OCH3) organic/inorganic nanohybrid for enhancing the flame retardancy and mechanical properties of epoxy
Iranian Polymer Journal,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 28, 2025
Язык: Английский
A new application for simultaneous phosphorus compounds removal and antibiotics degradation over magnesium-based layered double hydroxides
Journal of Photochemistry and Photobiology A Chemistry,
Год журнала:
2025,
Номер
unknown, С. 116329 - 116329
Опубликована: Фев. 1, 2025
Язык: Английский
Constructing a gradient modulus interfacial layer on the surface of hydrotalcite enhances the interfacial properties of hydrotalcite/benzoxazine composites
Polymer Composites,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 24, 2025
Abstract
The
gradient
modulus
interface
layer
between
hydrotalcite
(LDH)
and
benzoxazine
(Bz)
polymer
matrix
was
designed
by
grafting
silane
coupling
agent
KH560.
effect
of
varying
proportions
LDH
on
the
mechanical
properties
poly(LDH/Bz)
analyzed.
When
content
at
6
wt%,
poly(KH560‐LDH/Bz)
exhibited
enhancements
78.31%,
68.58%,
117.91%
in
tensile
strength,
flexural
impact
respectively,
compared
to
poly(LDH/Bz).
This
improvement
is
attributed
interfacial
phase
KH560,
which
enhances
surface
roughness
polarity
LDH,
effectively
buffering
equilibrating
disparity
matrix.
tension
functionalized
calculated
using
Harmonic
Mean
formula.
Upon
incorporation
energy
difference
reduced,
thereby
enhancing
compatibility
two
materials.
thickness
investigated
atomic
force
microscopy
(AFM),
confirmed
presence
a
graded
within
poly(KH560‐LDH/Bz).
Highlights
poly(KH560‐LDH/BZ)
were
improved
most
when
addition
KH560‐LDH
wt%.
has
low
free
energy,
conducive
dispersion
composite
with
wt%
showed
excellent
thermal
thermomechanical
properties.
increased
41.27%.
promotes
stress
transfer
Язык: Английский
Synergistic effects of sodium polyacrylate-loaded ammonium polyphosphate in combination with ScYSZ to enhance the flame retardancy and thermal insulation properties of epoxy-polyamide coatings
Progress in Organic Coatings,
Год журнала:
2025,
Номер
203, С. 109175 - 109175
Опубликована: Фев. 28, 2025
Язык: Английский
Tannic acid-mediated assembly of ultrafine Fe(OH)3 on the surface of phytic acid intercalated LDH to reduce fire hazard and improve mechanical properties of epoxy resin
Construction and Building Materials,
Год журнала:
2025,
Номер
476, С. 141210 - 141210
Опубликована: Апрель 14, 2025
Язык: Английский
Feasibility study on the green preparation of highly active MgO and the development of MgO- metakaolin cementitious material based on magnesium slag from Salt Lake
Construction and Building Materials,
Год журнала:
2025,
Номер
479, С. 141562 - 141562
Опубликована: Апрель 29, 2025
Язык: Английский
Cr(VI) Adsorption by Mg/Al Layered Double Hydroxide-Modified Sphagnum Moss Cellulose Gel: Performance and Mechanism
Molecules,
Год журнала:
2025,
Номер
30(8), С. 1796 - 1796
Опубликована: Апрель 17, 2025
Hexavalent
chromium
(Cr(VI)),
a
highly
toxic
and
carcinogenic
contaminant,
presents
significant
hazard
to
aquatic
ecosystems
human
health.
Developing
environmentally
friendly,
cost-effective,
biodegradable,
easily
recyclable
adsorbents
is
critical
for
efficient
Cr(VI)
removal.
Here,
we
present
an
innovative
solution
using
Mg/Al
layered
double
hydroxide
(LDH)-modified
sphagnum
cellulose
gel
(MgAl/LDH@SMCG),
prepared
by
pre-treating
cellulose,
crosslinking
with
polyvinyl
alcohol,
doping
LDH.
The
resulting
porous
composite
features
abundant
-COOH
-OH
chelating
groups,
significantly
enhancing
its
adsorption
capacity
structural
stability.
material’s
structure
surface
modifications
were
systematically
characterized
SEM,
TGA,
FT-IR,
XPS.
Batch
experiments
conducted
assess
the
influence
of
adsorbent
dosage,
initial
concentration,
pH,
contact
time,
temperature
on
performance.
Adsorption
kinetics,
isotherms,
thermodynamics
analyses
revealed
primary
mechanism
monolayer
chemical
adsorption,
experimental
data
closely
fitting
Freundlich
isotherm
pseudo-second-order
kinetic
models.
modified
exhibits
increased
roughness
sites,
in
markedly
improved
removal
efficiency.
This
study
not
only
provides
theoretical
insights
into
but
also
highlights
potential
LDH-functionalized
gels
heavy
metal
wastewater
treatment,
offering
sustainable
pathway
addressing
global
water
contamination
challenges.
Язык: Английский