Chemical
transformation
of
spent
polyesters
into
value-added
chemicals
is
substantial
for
sustainable
development
but
still
challenging.
Here,
we
report
a
simple,
metal-free,
and
efficient
aminolysis
strategy
to
upcycle
polylactic
acid
by
anilines
over
lactate-based
ionic
liquids
(e.g.,
tetrabutylammonium
lactate),
accessing
series
N-aryl
lactamides
under
mild
conditions.
This
also
effective
degradation
poly(bisphenol
A
carbonate),
affording
bisphenol
corresponding
diphenylurea
derivatives.
It
found
that,
with
the
assistance
water,
lactate
anion
as
hydrogen-bond
donor
can
efficiently
activate
carbonyl
C
atom
via
hydrogen
bonding
O
atom;
meanwhile,
acceptor,
it
enhance
nucleophilicity
N
amino
H
atom.
The
nucleophilic
attack
on
results
in
cleavage
C─O
bond
polymers
formation
target
products.
Chemical Reviews,
Год журнала:
2023,
Номер
123(16), С. 10432 - 10467
Опубликована: Июль 14, 2023
Metal–organic
frameworks
(MOFs)
and
ionic
liquids
(ILs)
represent
promising
materials
for
adsorption
separation.
ILs
incorporated
into
MOF
(denoted
as
IL/MOF
composites)
have
been
developed,
composites
combine
the
advantages
of
MOFs
to
achieve
enhanced
performance
in
adsorption-based
separation
fluid
mixtures.
The
designed
different
are
introduced
various
tailor
their
functional
properties,
which
affect
optimal
adsorptive
performance.
In
this
Perspective,
rational
fabrication
is
presented,
properties
demonstrated.
This
paper
provides
a
critical
overview
an
emergent
class
termed
well
recent
advances
applications
adsorbents
or
membranes
Furthermore,
gas
separations
(CO2
capture
from
flue
gas,
natural
purification,
acetylene
ethylene,
indoor
pollutants
removal)
liquid
(separation
bioactive
components,
organic-contaminant
removal,
desulfurization,
radionuclide
discussed.
Finally,
existing
challenges
highlighted,
appropriate
design
strategy
direction
effective
exploration
new
proposed.
Carbon,
Год журнала:
2022,
Номер
201, С. 1200 - 1228
Опубликована: Окт. 18, 2022
In
recent
years,
increased
environmental
concern
and
regulations
have
fueled
a
search
for
new
lubricant
additives
with
reduced
impact.
Owing
to
their
attractive
mechanical,
thermal,
chemical
properties,
carbon
nanostructures
been
proposed
as
potential
candidates
generation
of
friction-modifying
antiwear
additives.
The
aim
this
literature
review
was
survey
systematize
the
growing
body
on
topic
contribute
establishment
better
guidelines
future
research
development
subject.
various
can
exhibit
wide
range
identified
dimensionality,
structural
integrity
nature
interactions
particularly
important
properties
governing
tribological
behavior
nanostructures.
Critical
evaluation
theoretical
basis
lubrication
mechanisms
revealed
that
several
are
still
quite
poorly
understood.
However,
despite
certain
ambiguities
at
conceptual
level,
it
be
concluded
(particularly,
two-dimensional
graphene-based
quantum
dots)
promising
due
excellent
carrier
materials
well-established
chemistry
carbon.
Together,
these
offer
routes
surface
functionalization
endless
opportunities
tailoring
additive
properties.
As
result,
has
not
only
affect
dispersibility
but
also
enhance
inherent
nanostructure
enable
multifunctional
Lubricants,
Год журнала:
2021,
Номер
9(8), С. 73 - 73
Опубликована: Июль 23, 2021
Water-based
lubricants
(WBLs)
have
been
at
the
forefront
of
recent
research,
due
to
abundant
availability
water
a
low
cost.
However,
in
metallic
tribo-systems,
WBLs
often
exhibit
poor
performance
compared
petroleum-based
lubricants.
Research
and
development
indicate
that
nano-additives
improve
lubrication
water.
Some
these
additives
could
be
categorized
as
solid
nanoparticles,
ionic
liquids,
bio-based
oils.
These
tribological
properties
help
reduce
friction,
wear,
corrosion.
This
review
explored
different
water-based
lubricant
summarized
their
performances.
Viscosity,
density,
wettability,
solubility
are
discussed
determine
viability
using
nano-lubricants
for
reducing
friction
wear
machining.
liquid
also
environmental
benefits
over
Further
research
is
needed
understand
optimize
systems
completely.
Chemical Reviews,
Год журнала:
2024,
Номер
124(9), С. 5227 - 5420
Опубликована: Апрель 25, 2024
Ionic
liquids
(ILs)
have
unique
physicochemical
properties
that
make
them
advantageous
for
catalysis,
such
as
low
vapor
pressure,
non-flammability,
high
thermal
and
chemical
stabilities,
the
ability
to
enhance
activity
stability
of
(bio)catalysts.
ILs
can
improve
efficiency,
selectivity,
sustainability
bio(transformations)
by
acting
activators
enzymes,
selectively
dissolving
substrates
products,
reducing
toxicity.
They
also
be
recycled
reused
multiple
times
without
losing
their
effectiveness.
based
on
imidazolium
cation
are
preferred
structural
organization
aspects,
with
a
semiorganized
layer
surrounding
catalyst.
act
container,
providing
confined
space
allows
modulation
electronic
geometric
effects,
miscibility
reactants
residence
time
species.
stabilize
ionic
radical
species
control
catalytic
dynamic
processes.
Supported
IL
phase
(SILP)
derivatives
polymeric
(PILs)
good
options
molecular
engineering
greener
The
major
factors
governing
metal,
photo-,
electro-,
biocatalysts
in
discussed
detail
vast
literature
available
over
past
two
half
decades.
Catalytic
reactions,
ranging
from
hydrogenation
cross-coupling
oxidations,
promoted
homogeneous
heterogeneous
catalysts
both
single
multiphase
conditions,
extensively
reviewed
considering
knowledge
accumulated
until
now.
Advanced Functional Materials,
Год журнала:
2023,
Номер
34(9)
Опубликована: Ноя. 20, 2023
Abstract
Macroscale
superlubricity
on
engineering
steel
surfaces
offers
a
promising
solution
for
minimizing
friction
and
wear
in
applications.
However,
achieving
typically
requires
long
running‐in
period,
which
may
result
significant
the
pair.
Herein,
new
lubricant
with
superlubricating
properties
is
rationally
designed
by
using
polyethylene
glycol
(PEG)
critic
acid
(CA)
under
complexing
effect
period
of
about
800
s.
Importantly,
introduction
carbon
quantum
dots
(CQDs)
obtained
from
pyrolysis
CA
into
PEG
aqueous
shortens
macroscale
(
µ
≈
0.005)
between
steel/steel
contact
to
44
The
corresponding
rate
(1.15
×
10
−7
mm
3
N
−1
m
)
disk
reduced
77%
due
shorter
time.
Furthermore,
surface
analysis
combined
molecular
dynamics
simulations
demonstrates
that
CQDs
easily
adsorb
pair,
forming
film
reduces
interaction
energy
molecules
substrate.
This
work
provides
insights
lubrication
mechanism
contributes
design
liquid
superlubricants
short
periods
low
rates
surfaces.
Abstract
The
dispersion
stability
of
nano‐lubricating
additives
is
crucial
for
the
shelf
life
lubricant
and
its
practical
applications.
Nitrogen–sulfur
co‐doped
carbon
dots
(N,S@CDs)
via
a
one‐step
hydrothermal
method
with
nitropyrene
thiourea
as
raw
materials
are
hereby
presented.
N
S
elements
selectively
distributed
throughout
entire
skeleton
doping
amount
22.6
at%.
as‐synthesized
N,S@CDs
exhibit
excellent
in
PEG200
maintain
over
one
year.
experiment
results
indicate
that
significantly
improve
anti‐wear
friction
reduction
properties
PEG200,
while
coefficient
reduced
from
0.25
to
0.09
1.5
wt%
addition,
wear
volume,
depth,
width
by
68%,
52%,
57%,
respectively.
good
lubrication
performance
attributed
stability,
enhanced
filling
polishing
effects,
complex
tribochemical
reactions
caused
heteroatom
form
stable
protective
film
on
worn
surface.
Furthermore,
as‐prepared
intrinsic
fluorescence
intensity
photoluminescence
quantum
yield
(PLQY)
12.5%
remain
fluorescent
during
long‐term
process,
therefore
have
potential
application
prospect
non‐destructive
detection
oil
leakage
labeling
method.
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 19, 2025
Abstract
Friction‐induced
energy
consumption
is
a
significant
global
concern,
driving
researchers
to
explore
advanced
lubrication
materials.
In
nature,
vital
for
the
life
cycle
of
animals,
plants,
and
humans,
playing
key
roles
in
movement,
predation,
decomposition.
After
billions
years
evolution,
natural
exhibits
remarkable
professionalism,
high
efficiency,
durability,
intelligence,
offering
valuable
insights
designing
This
review
focuses
on
mechanisms
organisms
advancements
biomimetic
soft
matter
It
begins
by
summarizing
common
biological
behaviors
their
underlying
mechanisms,
followed
current
design
strategies
The
then
outlines
development
performance
these
materials
based
different
strategies.
Finally,
it
discusses
potential
research
directions
prospects
will
be
resource
advancing
Two-dimensional
materials
and
ionic
liquids
are
widely
used
as
lubricating
due
to
their
excellent
tribological
properties.
This
study
designed
three
water-based
proton-ionic
(PILs)
synthesized
molybdenum
disulfide
(MoS2)
nanosheets
for
combination
lubricant
additives.
The
composite
lubrication
system
exhibits
properties,
with
a
friction
coefficient
low
0.024,
reducing
by
90.77%
compared
water-glycol.
Mechanism
studies
have
shown
that
the
performance
comes
from
adsorption
of
at
sliding
interfaces,
interlayer
slip
MoS2,
generation
tribofilms
wear
scars.
work
provides
theoretical
support
technical
guidance
design
preparation
new
The Journal of Physical Chemistry C,
Год журнала:
2021,
Номер
125(25), С. 13707 - 13720
Опубликована: Июнь 21, 2021
Ionic
liquids
(ILs)
have
become
highly
popular
solvents
over
the
last
two
decades
in
a
range
of
fields,
especially
electrochemistry.
Their
intrinsic
properties
include
high
chemical
and
thermal
stability,
wide
electrochemical
windows,
good
conductivity,
polarity,
tunability,
solvation
properties,
making
them
ideal
as
for
different
applications.
At
charged
surfaces
such
electrodes,
an
electrical
double
layer
(EDL)
forms
when
exposed
to
fluid.
IL
ions
form
denser
EDL
structures
compared
conventional
solvent/electrolyte
systems,
which
can
cause
differences
behavior
This
Perspective
discusses
some
recent
work
(over
three
years)
where
structure
ILs
has
been
examined
found
influence
supercapacitors,
batteries,
sensors,
lubrication
systems
that
employ
solvents.
More
fundamental
is
expected
continue
this
area,
will
inform
design
use
these
applications
beyond.
